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[Linux-stable-mirror] Patch "usb: add RESET_RESUME for ELSA MicroLink 56K" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usb: add RESET_RESUME for ELSA MicroLink 56K to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-add-reset_resume-for-elsa-microlink-56k.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From b9096d9f15c142574ebebe8fbb137012bb9d99c2 Mon Sep 17 00:00:00 2001 From: Oliver Neukum <oneukum(a)suse.com> Date: Tue, 12 Dec 2017 16:11:30 +0100 Subject: usb: add RESET_RESUME for ELSA MicroLink 56K From: Oliver Neukum <oneukum(a)suse.com> commit b9096d9f15c142574ebebe8fbb137012bb9d99c2 upstream. This modem needs this quirk to operate. It produces timeouts when resumed without reset. Signed-off-by: Oliver Neukum <oneukum(a)suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -155,6 +155,9 @@ static const struct usb_device_id usb_qu /* Genesys Logic hub, internally used by KY-688 USB 3.1 Type-C Hub */ { USB_DEVICE(0x05e3, 0x0612), .driver_info = USB_QUIRK_NO_LPM }, + /* ELSA MicroLink 56K */ + { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter */ { USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM }, Patches currently in stable-queue which might be from oneukum(a)suse.com are queue-4.4/usb-add-reset_resume-for-elsa-microlink-56k.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "usb: Add device quirk for Logitech HD Pro Webcam C925e" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usb: Add device quirk for Logitech HD Pro Webcam C925e to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-add-device-quirk-for-logitech-hd-pro-webcam-c925e.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 7f038d256c723dd390d2fca942919573995f4cfd Mon Sep 17 00:00:00 2001 From: Dmitry Fleytman Dmitry Fleytman <dmitry.fleytman(a)gmail.com> Date: Tue, 19 Dec 2017 06:02:04 +0200 Subject: usb: Add device quirk for Logitech HD Pro Webcam C925e From: Dmitry Fleytman Dmitry Fleytman <dmitry.fleytman(a)gmail.com> commit 7f038d256c723dd390d2fca942919573995f4cfd upstream. Commit e0429362ab15 ("usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e") introduced quirk to workaround an issue with some Logitech webcams. There is one more model that has the same issue - C925e, so applying the same quirk as well. See aforementioned commit message for detailed explanation of the problem. Signed-off-by: Dmitry Fleytman <dmitry.fleytman(a)gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/core/quirks.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -57,10 +57,11 @@ static const struct usb_device_id usb_qu /* Microsoft LifeCam-VX700 v2.0 */ { USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME }, - /* Logitech HD Pro Webcams C920, C920-C and C930e */ + /* Logitech HD Pro Webcams C920, C920-C, C925e and C930e */ { USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT }, { USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT }, { USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT }, + { USB_DEVICE(0x046d, 0x085b), .driver_info = USB_QUIRK_DELAY_INIT }, /* Logitech ConferenceCam CC3000e */ { USB_DEVICE(0x046d, 0x0847), .driver_info = USB_QUIRK_DELAY_INIT }, Patches currently in stable-queue which might be from dmitry.fleytman(a)gmail.com are queue-4.4/usb-add-device-quirk-for-logitech-hd-pro-webcam-c925e.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick()" has been added to the 4.4-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick() to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 5d62c183f9e9df1deeea0906d099a94e8a43047a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx(a)linutronix.de> Date: Fri, 22 Dec 2017 15:51:13 +0100 Subject: nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick() From: Thomas Gleixner <tglx(a)linutronix.de> commit 5d62c183f9e9df1deeea0906d099a94e8a43047a upstream. The conditions in irq_exit() to invoke tick_nohz_irq_exit() which subsequently invokes tick_nohz_stop_sched_tick() are: if ((idle_cpu(cpu) && !need_resched()) || tick_nohz_full_cpu(cpu)) If need_resched() is not set, but a timer softirq is pending then this is an indication that the softirq code punted and delegated the execution to softirqd. need_resched() is not true because the current interrupted task takes precedence over softirqd. Invoking tick_nohz_irq_exit() in this case can cause an endless loop of timer interrupts because the timer wheel contains an expired timer, but softirqs are not yet executed. So it returns an immediate expiry request, which causes the timer to fire immediately again. Lather, rinse and repeat.... Prevent that by adding a check for a pending timer soft interrupt to the conditions in tick_nohz_stop_sched_tick() which avoid calling get_next_timer_interrupt(). That keeps the tick sched timer on the tick and prevents a repetitive programming of an already expired timer. Reported-by: Sebastian Siewior <bigeasy(a)linutronix.d> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Acked-by: Frederic Weisbecker <fweisbec(a)gmail.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Paul McKenney <paulmck(a)linux.vnet.ibm.com> Cc: Anna-Maria Gleixner <anna-maria(a)linutronix.de> Cc: Sebastian Siewior <bigeasy(a)linutronix.de> Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1712272156050.2431@nanos Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- kernel/time/tick-sched.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -568,6 +568,11 @@ static void tick_nohz_restart(struct tic tick_program_event(hrtimer_get_expires(&ts->sched_timer), 1); } +static inline bool local_timer_softirq_pending(void) +{ + return local_softirq_pending() & TIMER_SOFTIRQ; +} + static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, ktime_t now, int cpu) { @@ -584,8 +589,18 @@ static ktime_t tick_nohz_stop_sched_tick } while (read_seqretry(&jiffies_lock, seq)); ts->last_jiffies = basejiff; - if (rcu_needs_cpu(basemono, &next_rcu) || - arch_needs_cpu() || irq_work_needs_cpu()) { + /* + * Keep the periodic tick, when RCU, architecture or irq_work + * requests it. + * Aside of that check whether the local timer softirq is + * pending. If so its a bad idea to call get_next_timer_interrupt() + * because there is an already expired timer, so it will request + * immeditate expiry, which rearms the hardware timer with a + * minimal delta which brings us back to this place + * immediately. Lather, rinse and repeat... + */ + if (rcu_needs_cpu(basemono, &next_rcu) || arch_needs_cpu() || + irq_work_needs_cpu() || local_timer_softirq_pending()) { next_tick = basemono + TICK_NSEC; } else { /* Patches currently in stable-queue which might be from tglx(a)linutronix.de are queue-4.4/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.4/x86-vm86-32-switch-to-flush_tlb_mm_range-in-mark_screen_rdonly.patch queue-4.4/x86-mm-add-the-nopcid-boot-option-to-turn-off-pcid.patch queue-4.4/x86-mm-enable-cr4.pcide-on-supported-systems.patch queue-4.4/pci-pm-force-devices-to-d0-in-pci_pm_thaw_noirq.patch queue-4.4/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.4/x86-mm-remove-the-up-asm-tlbflush.h-code-always-use-the-formerly-smp-code.patch queue-4.4/x86-mm-reimplement-flush_tlb_page-using-flush_tlb_mm_range.patch queue-4.4/x86-mm-make-flush_tlb_mm_range-more-predictable.patch queue-4.4/x86-mm-remove-flush_tlb-and-flush_tlb_current_task.patch queue-4.4/x86-mm-disable-pcid-on-32-bit-kernels.patch queue-4.4/x86-mm-64-fix-reboot-interaction-with-cr4.pcide.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "x86/smpboot: Remove stale TLB flush invocations" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled x86/smpboot: Remove stale TLB flush invocations to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: x86-smpboot-remove-stale-tlb-flush-invocations.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 322f8b8b340c824aef891342b0f5795d15e11562 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx(a)linutronix.de> Date: Sat, 30 Dec 2017 22:13:53 +0100 Subject: x86/smpboot: Remove stale TLB flush invocations From: Thomas Gleixner <tglx(a)linutronix.de> commit 322f8b8b340c824aef891342b0f5795d15e11562 upstream. smpboot_setup_warm_reset_vector() and smpboot_restore_warm_reset_vector() invoke local_flush_tlb() for no obvious reason. Digging in history revealed that the original code in the 2.1 era added those because the code manipulated a swapper_pg_dir pagetable entry. The pagetable manipulation was removed long ago in the 2.3 timeframe, but the TLB flush invocations stayed around forever. Remove them along with the pointless pr_debug()s which come from the same 2.1 change. Reported-by: Dominik Brodowski <linux(a)dominikbrodowski.net> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: Andy Lutomirski <luto(a)kernel.org> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Dave Hansen <dave.hansen(a)linux.intel.com> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Linus Torvalds <torvalds(a)linuxfoundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Link: http://lkml.kernel.org/r/20171230211829.586548655@linutronix.de Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/kernel/smpboot.c | 9 --------- 1 file changed, 9 deletions(-) --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -128,14 +128,10 @@ static inline void smpboot_setup_warm_re spin_lock_irqsave(&rtc_lock, flags); CMOS_WRITE(0xa, 0xf); spin_unlock_irqrestore(&rtc_lock, flags); - local_flush_tlb(); - pr_debug("1.\n"); *((volatile unsigned short *)phys_to_virt(TRAMPOLINE_PHYS_HIGH)) = start_eip >> 4; - pr_debug("2.\n"); *((volatile unsigned short *)phys_to_virt(TRAMPOLINE_PHYS_LOW)) = start_eip & 0xf; - pr_debug("3.\n"); } static inline void smpboot_restore_warm_reset_vector(void) @@ -143,11 +139,6 @@ static inline void smpboot_restore_warm_ unsigned long flags; /* - * Install writable page 0 entry to set BIOS data area. - */ - local_flush_tlb(); - - /* * Paranoid: Set warm reset code and vector here back * to default values. */ Patches currently in stable-queue which might be from tglx(a)linutronix.de are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/timers-invoke-timer_start_debug-where-it-makes-sense.patch queue-4.14/revert-mlx5-move-affinity-hints-assignments-to-generic-code.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-ldt-make-ldt-pgtable-free-conditional.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/timers-use-deferrable-base-independent-of-base-nohz_active.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/timers-reinitialize-per-cpu-bases-on-hotplug.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "x86/mm: Remove preempt_disable/enable() from __native_flush_tlb()" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled x86/mm: Remove preempt_disable/enable() from __native_flush_tlb() to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From decab0888e6e14e11d53cefa85f8b3d3b45ce73c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx(a)linutronix.de> Date: Sat, 30 Dec 2017 22:13:54 +0100 Subject: x86/mm: Remove preempt_disable/enable() from __native_flush_tlb() From: Thomas Gleixner <tglx(a)linutronix.de> commit decab0888e6e14e11d53cefa85f8b3d3b45ce73c upstream. The preempt_disable/enable() pair in __native_flush_tlb() was added in commit: 5cf0791da5c1 ("x86/mm: Disable preemption during CR3 read+write") ... to protect the UP variant of flush_tlb_mm_range(). That preempt_disable/enable() pair should have been added to the UP variant of flush_tlb_mm_range() instead. The UP variant was removed with commit: ce4a4e565f52 ("x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP code") ... but the preempt_disable/enable() pair stayed around. The latest change to __native_flush_tlb() in commit: 6fd166aae78c ("x86/mm: Use/Fix PCID to optimize user/kernel switches") ... added an access to a per CPU variable outside the preempt disabled regions, which makes no sense at all. __native_flush_tlb() must always be called with at least preemption disabled. Remove the preempt_disable/enable() pair and add a WARN_ON_ONCE() to catch bad callers independent of the smp_processor_id() debugging. Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: Andy Lutomirski <luto(a)kernel.org> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Dave Hansen <dave.hansen(a)linux.intel.com> Cc: Dominik Brodowski <linux(a)dominikbrodowski.net> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Linus Torvalds <torvalds(a)linuxfoundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Link: http://lkml.kernel.org/r/20171230211829.679325424@linutronix.de Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/include/asm/tlbflush.h | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -345,15 +345,17 @@ static inline void invalidate_user_asid( */ static inline void __native_flush_tlb(void) { - invalidate_user_asid(this_cpu_read(cpu_tlbstate.loaded_mm_asid)); /* - * If current->mm == NULL then we borrow a mm which may change - * during a task switch and therefore we must not be preempted - * while we write CR3 back: + * Preemption or interrupts must be disabled to protect the access + * to the per CPU variable and to prevent being preempted between + * read_cr3() and write_cr3(). */ - preempt_disable(); + WARN_ON_ONCE(preemptible()); + + invalidate_user_asid(this_cpu_read(cpu_tlbstate.loaded_mm_asid)); + + /* If current->mm == NULL then the read_cr3() "borrows" an mm */ native_write_cr3(__native_read_cr3()); - preempt_enable(); } /* Patches currently in stable-queue which might be from tglx(a)linutronix.de are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/timers-invoke-timer_start_debug-where-it-makes-sense.patch queue-4.14/revert-mlx5-move-affinity-hints-assignments-to-generic-code.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-ldt-make-ldt-pgtable-free-conditional.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/timers-use-deferrable-base-independent-of-base-nohz_active.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/timers-reinitialize-per-cpu-bases-on-hotplug.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "x86/ldt: Plug memory leak in error path" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled x86/ldt: Plug memory leak in error path to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: x86-ldt-plug-memory-leak-in-error-path.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From a62d69857aab4caa43049e72fe0ed5c4a60518dd Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx(a)linutronix.de> Date: Sun, 31 Dec 2017 11:24:34 +0100 Subject: x86/ldt: Plug memory leak in error path From: Thomas Gleixner <tglx(a)linutronix.de> commit a62d69857aab4caa43049e72fe0ed5c4a60518dd upstream. The error path in write_ldt() tries to free 'old_ldt' instead of the newly allocated 'new_ldt', resulting in a memory leak. It also misses to clean up a half populated LDT pagetable, which is not a leak as it gets cleaned up when the process exits. Free both the potentially half populated LDT pagetable and the newly allocated LDT struct. This can be done unconditionally because once an LDT is mapped subsequent maps will succeed, because the PTE page is already populated and the two LDTs fit into that single page. Reported-by: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: Andy Lutomirski <luto(a)kernel.org> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Dave Hansen <dave.hansen(a)linux.intel.com> Cc: Dominik Brodowski <linux(a)dominikbrodowski.net> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Linus Torvalds <torvalds(a)linuxfoundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Fixes: f55f0501cbf6 ("x86/pti: Put the LDT in its own PGD if PTI is on") Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1712311121340.1899@nanos Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/kernel/ldt.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -421,7 +421,13 @@ static int write_ldt(void __user *ptr, u */ error = map_ldt_struct(mm, new_ldt, old_ldt ? !old_ldt->slot : 0); if (error) { - free_ldt_struct(old_ldt); + /* + * This only can fail for the first LDT setup. If an LDT is + * already installed then the PTE page is already + * populated. Mop up a half populated page table. + */ + free_ldt_pgtables(mm); + free_ldt_struct(new_ldt); goto out_unlock; } Patches currently in stable-queue which might be from tglx(a)linutronix.de are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/timers-invoke-timer_start_debug-where-it-makes-sense.patch queue-4.14/revert-mlx5-move-affinity-hints-assignments-to-generic-code.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-ldt-make-ldt-pgtable-free-conditional.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/timers-use-deferrable-base-independent-of-base-nohz_active.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/timers-reinitialize-per-cpu-bases-on-hotplug.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "x86/ldt: Make LDT pgtable free conditional" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled x86/ldt: Make LDT pgtable free conditional to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: x86-ldt-make-ldt-pgtable-free-conditional.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 7f414195b0c3612acd12b4611a5fe75995cf10c7 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx(a)linutronix.de> Date: Sun, 31 Dec 2017 16:52:15 +0100 Subject: x86/ldt: Make LDT pgtable free conditional From: Thomas Gleixner <tglx(a)linutronix.de> commit 7f414195b0c3612acd12b4611a5fe75995cf10c7 upstream. Andy prefers to be paranoid about the pagetable free in the error path of write_ldt(). Make it conditional and warn whenever the installment of a secondary LDT fails. Requested-by: Andy Lutomirski <luto(a)amacapital.net> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/kernel/ldt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -426,7 +426,8 @@ static int write_ldt(void __user *ptr, u * already installed then the PTE page is already * populated. Mop up a half populated page table. */ - free_ldt_pgtables(mm); + if (!WARN_ON_ONCE(old_ldt)) + free_ldt_pgtables(mm); free_ldt_struct(new_ldt); goto out_unlock; } Patches currently in stable-queue which might be from tglx(a)linutronix.de are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/timers-invoke-timer_start_debug-where-it-makes-sense.patch queue-4.14/revert-mlx5-move-affinity-hints-assignments-to-generic-code.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-ldt-make-ldt-pgtable-free-conditional.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/timers-use-deferrable-base-independent-of-base-nohz_active.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/timers-reinitialize-per-cpu-bases-on-hotplug.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "x86/espfix/64: Fix espfix double-fault handling on 5-level systems" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled x86/espfix/64: Fix espfix double-fault handling on 5-level systems to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From c739f930be1dd5fd949030e3475a884fe06dae9b Mon Sep 17 00:00:00 2001 From: Andy Lutomirski <luto(a)kernel.org> Date: Tue, 12 Dec 2017 07:56:36 -0800 Subject: x86/espfix/64: Fix espfix double-fault handling on 5-level systems From: Andy Lutomirski <luto(a)kernel.org> commit c739f930be1dd5fd949030e3475a884fe06dae9b upstream. Using PGDIR_SHIFT to identify espfix64 addresses on 5-level systems was wrong, and it resulted in panics due to unhandled double faults. Use P4D_SHIFT instead, which is correct on 4-level and 5-level machines. This fixes a panic when running x86 selftests on 5-level machines. Signed-off-by: Andy Lutomirski <luto(a)kernel.org> Acked-by: Kirill A. Shutemov <kirill.shutemov(a)linux.intel.com> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Brian Gerst <brgerst(a)gmail.com> Cc: Dave Hansen <dave.hansen(a)intel.com> Cc: David Laight <David.Laight(a)aculab.com> Cc: Kees Cook <keescook(a)chromium.org> Cc: Kirill A. Shutemov <kirill(a)shutemov.name> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Fixes: 1d33b219563f ("x86/espfix: Add support for 5-level paging") Link: http://lkml.kernel.org/r/24c898b4f44fdf8c22d93703850fb384ef87cfdc.151303546… Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/kernel/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -361,7 +361,7 @@ dotraplinkage void do_double_fault(struc * * No need for ist_enter here because we don't use RCU. */ - if (((long)regs->sp >> PGDIR_SHIFT) == ESPFIX_PGD_ENTRY && + if (((long)regs->sp >> P4D_SHIFT) == ESPFIX_PGD_ENTRY && regs->cs == __KERNEL_CS && regs->ip == (unsigned long)native_irq_return_iret) { Patches currently in stable-queue which might be from luto(a)kernel.org are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "x86-32: Fix kexec with stack canary (CONFIG_CC_STACKPROTECTOR)" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled x86-32: Fix kexec with stack canary (CONFIG_CC_STACKPROTECTOR) to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From ac461122c88a10b7d775de2f56467f097c9e627a Mon Sep 17 00:00:00 2001 From: Linus Torvalds <torvalds(a)linux-foundation.org> Date: Wed, 27 Dec 2017 11:48:50 -0800 Subject: x86-32: Fix kexec with stack canary (CONFIG_CC_STACKPROTECTOR) From: Linus Torvalds <torvalds(a)linux-foundation.org> commit ac461122c88a10b7d775de2f56467f097c9e627a upstream. Commit e802a51ede91 ("x86/idt: Consolidate IDT invalidation") cleaned up and unified the IDT invalidation that existed in a couple of places. It changed no actual real code. Despite not changing any actual real code, it _did_ change code generation: by implementing the common idt_invalidate() function in archx86/kernel/idt.c, it made the use of the function in arch/x86/kernel/machine_kexec_32.c be a real function call rather than an (accidental) inlining of the function. That, in turn, exposed two issues: - in load_segments(), we had incorrectly reset all the segment registers, which then made the stack canary load (which gcc does using offset of %gs) cause a trap. Instead of %gs pointing to the stack canary, it will be the normal zero-based kernel segment, and the stack canary load will take a page fault at address 0x14. - to make this even harder to debug, we had invalidated the GDT just before calling idt_invalidate(), which meant that the fault happened with an invalid GDT, which in turn causes a triple fault and immediate reboot. Fix this by (a) not reloading the special segments in load_segments(). We currently don't do any percpu accesses (which would require %fs on x86-32) in this area, but there's no reason to think that we might not want to do them, and like %gs, it's pointless to break it. (b) doing idt_invalidate() before invalidating the GDT, to keep things at least _slightly_ more debuggable for a bit longer. Without a IDT, traps will not work. Without a GDT, traps also will not work, but neither will any segment loads etc. So in a very real sense, the GDT is even more core than the IDT. Fixes: e802a51ede91 ("x86/idt: Consolidate IDT invalidation") Reported-and-tested-by: Alexandru Chirvasitu <achirvasub(a)gmail.com> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: Denys Vlasenko <dvlasenk(a)redhat.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Brian Gerst <brgerst(a)gmail.com> Cc: Steven Rostedt <rostedt(a)goodmis.org> Cc: Borislav Petkov <bp(a)alien8.de> Cc: Andy Lutomirski <luto(a)kernel.org> Cc: Josh Poimboeuf <jpoimboe(a)redhat.com> Link: https://lkml.kernel.org/r/alpine.LFD.2.21.1712271143180.8572@i7.lan Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/kernel/machine_kexec_32.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/arch/x86/kernel/machine_kexec_32.c +++ b/arch/x86/kernel/machine_kexec_32.c @@ -48,8 +48,6 @@ static void load_segments(void) "\tmovl $"STR(__KERNEL_DS)",%%eax\n" "\tmovl %%eax,%%ds\n" "\tmovl %%eax,%%es\n" - "\tmovl %%eax,%%fs\n" - "\tmovl %%eax,%%gs\n" "\tmovl %%eax,%%ss\n" : : : "eax", "memory"); #undef STR @@ -232,8 +230,8 @@ void machine_kexec(struct kimage *image) * The gdt & idt are now invalid. * If you want to load them you must set up your own idt & gdt. */ - set_gdt(phys_to_virt(0), 0); idt_invalidate(phys_to_virt(0)); + set_gdt(phys_to_virt(0), 0); /* now call it */ image->start = relocate_kernel_ptr((unsigned long)image->head, Patches currently in stable-queue which might be from torvalds(a)linux-foundation.org are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/kbuild-add-fno-stack-check-to-kernel-build-options.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201 to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-xhci-add-xhci_trust_tx_length-for-renesas-upd720201.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From da99706689481717998d1d48edd389f339eea979 Mon Sep 17 00:00:00 2001 From: Daniel Thompson <daniel.thompson(a)linaro.org> Date: Thu, 21 Dec 2017 15:06:15 +0200 Subject: usb: xhci: Add XHCI_TRUST_TX_LENGTH for Renesas uPD720201 From: Daniel Thompson <daniel.thompson(a)linaro.org> commit da99706689481717998d1d48edd389f339eea979 upstream. When plugging in a USB webcam I see the following message: xhci_hcd 0000:04:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk? handle_tx_event: 913 callbacks suppressed All is quiet again with this patch (and I've done a fair but of soak testing with the camera since). Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> Acked-by: Ard Biesheuvel <ard.biesheuvel(a)linaro.org> Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/host/xhci-pci.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -190,6 +190,9 @@ static void xhci_pci_quirks(struct devic xhci->quirks |= XHCI_BROKEN_STREAMS; } if (pdev->vendor == PCI_VENDOR_ID_RENESAS && + pdev->device == 0x0014) + xhci->quirks |= XHCI_TRUST_TX_LENGTH; + if (pdev->vendor == PCI_VENDOR_ID_RENESAS && pdev->device == 0x0015) xhci->quirks |= XHCI_RESET_ON_RESUME; if (pdev->vendor == PCI_VENDOR_ID_VIA) Patches currently in stable-queue which might be from daniel.thompson(a)linaro.org are queue-4.14/usb-xhci-add-xhci_trust_tx_length-for-renesas-upd720201.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "USB: serial: qcserial: add Sierra Wireless EM7565" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled USB: serial: qcserial: add Sierra Wireless EM7565 to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-serial-qcserial-add-sierra-wireless-em7565.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 92a18a657fb2e2ffbfa0659af32cc18fd2346516 Mon Sep 17 00:00:00 2001 From: Reinhard Speyerer <rspmn(a)arcor.de> Date: Fri, 15 Dec 2017 00:39:27 +0100 Subject: USB: serial: qcserial: add Sierra Wireless EM7565 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Reinhard Speyerer <rspmn(a)arcor.de> commit 92a18a657fb2e2ffbfa0659af32cc18fd2346516 upstream. Sierra Wireless EM7565 devices use the QCSERIAL_SWI layout for their serial ports T: Bus=01 Lev=03 Prnt=29 Port=01 Cnt=02 Dev#= 31 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1199 ProdID=9091 Rev= 0.06 S: Manufacturer=Sierra Wireless, Incorporated S: Product=Sierra Wireless EM7565 Qualcomm Snapdragon X16 LTE-A S: SerialNumber=xxxxxxxx C:* #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=qcserial E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial E: Ad=83(I) Atr=03(Int.) MxPS= 10 Ivl=32ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=qcserial E: Ad=85(I) Atr=03(Int.) MxPS= 10 Ivl=32ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 8 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=86(I) Atr=03(Int.) MxPS= 8 Ivl=32ms E: Ad=8e(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms but need sendsetup = true for the NMEA port to make it work properly. Simplify the patch compared to v1 as suggested by Bjørn Mork by taking advantage of the fact that existing devices work with sendsetup = true too. Use sendsetup = true for the NMEA interface of QCSERIAL_SWI and add DEVICE_SWI entries for the EM7565 PID 0x9091 and the EM7565 QDL PID 0x9090. Tests with several MC73xx/MC74xx/MC77xx devices have been performed in order to verify backward compatibility. Signed-off-by: Reinhard Speyerer <rspmn(a)arcor.de> Signed-off-by: Johan Hovold <johan(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/serial/qcserial.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -166,6 +166,8 @@ static const struct usb_device_id id_tab {DEVICE_SWI(0x1199, 0x9079)}, /* Sierra Wireless EM74xx */ {DEVICE_SWI(0x1199, 0x907a)}, /* Sierra Wireless EM74xx QDL */ {DEVICE_SWI(0x1199, 0x907b)}, /* Sierra Wireless EM74xx */ + {DEVICE_SWI(0x1199, 0x9090)}, /* Sierra Wireless EM7565 QDL */ + {DEVICE_SWI(0x1199, 0x9091)}, /* Sierra Wireless EM7565 */ {DEVICE_SWI(0x413c, 0x81a2)}, /* Dell Wireless 5806 Gobi(TM) 4G LTE Mobile Broadband Card */ {DEVICE_SWI(0x413c, 0x81a3)}, /* Dell Wireless 5570 HSPA+ (42Mbps) Mobile Broadband Card */ {DEVICE_SWI(0x413c, 0x81a4)}, /* Dell Wireless 5570e HSPA+ (42Mbps) Mobile Broadband Card */ @@ -346,6 +348,7 @@ static int qcprobe(struct usb_serial *se break; case 2: dev_dbg(dev, "NMEA GPS interface found\n"); + sendsetup = true; break; case 3: dev_dbg(dev, "Modem port found\n"); Patches currently in stable-queue which might be from rspmn(a)arcor.de are queue-4.14/usb-serial-qcserial-add-sierra-wireless-em7565.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "USB: serial: option: adding support for YUGA CLM920-NC5" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled USB: serial: option: adding support for YUGA CLM920-NC5 to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-serial-option-adding-support-for-yuga-clm920-nc5.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 3920bb713038810f25770e7545b79f204685c8f2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?SZ=20Lin=20=28=E6=9E=97=E4=B8=8A=E6=99=BA=29?= <sz.lin(a)moxa.com> Date: Tue, 19 Dec 2017 17:40:32 +0800 Subject: USB: serial: option: adding support for YUGA CLM920-NC5 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: SZ Lin (林上智) <sz.lin(a)moxa.com> commit 3920bb713038810f25770e7545b79f204685c8f2 upstream. This patch adds support for YUGA CLM920-NC5 PID 0x9625 USB modem to option driver. Interface layout: 0: QCDM/DIAG 1: ADB 2: MODEM 3: AT 4: RMNET Signed-off-by: Taiyi Wu <taiyity.wu(a)moxa.com> Signed-off-by: SZ Lin (林上智) <sz.lin(a)moxa.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/serial/option.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -236,6 +236,8 @@ static void option_instat_callback(struc /* These Quectel products use Qualcomm's vendor ID */ #define QUECTEL_PRODUCT_UC20 0x9003 #define QUECTEL_PRODUCT_UC15 0x9090 +/* These Yuga products use Qualcomm's vendor ID */ +#define YUGA_PRODUCT_CLM920_NC5 0x9625 #define QUECTEL_VENDOR_ID 0x2c7c /* These Quectel products use Quectel's vendor ID */ @@ -683,6 +685,10 @@ static const struct option_blacklist_inf .reserved = BIT(4) | BIT(5), }; +static const struct option_blacklist_info yuga_clm920_nc5_blacklist = { + .reserved = BIT(1) | BIT(4), +}; + static const struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) }, @@ -1187,6 +1193,9 @@ static const struct usb_device_id option { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)}, { USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20), .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, + /* Yuga products use Qualcomm vendor ID */ + { USB_DEVICE(QUALCOMM_VENDOR_ID, YUGA_PRODUCT_CLM920_NC5), + .driver_info = (kernel_ulong_t)&yuga_clm920_nc5_blacklist }, /* Quectel products using Quectel vendor ID */ { USB_DEVICE(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC21), .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, Patches currently in stable-queue which might be from sz.lin(a)moxa.com are queue-4.14/usb-serial-option-adding-support-for-yuga-clm920-nc5.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "USB: serial: option: add support for Telit ME910 PID 0x1101" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled USB: serial: option: add support for Telit ME910 PID 0x1101 to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-serial-option-add-support-for-telit-me910-pid-0x1101.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 08933099e6404f588f81c2050bfec7313e06eeaf Mon Sep 17 00:00:00 2001 From: Daniele Palmas <dnlplm(a)gmail.com> Date: Thu, 14 Dec 2017 16:54:45 +0100 Subject: USB: serial: option: add support for Telit ME910 PID 0x1101 From: Daniele Palmas <dnlplm(a)gmail.com> commit 08933099e6404f588f81c2050bfec7313e06eeaf upstream. This patch adds support for PID 0x1101 of Telit ME910. Signed-off-by: Daniele Palmas <dnlplm(a)gmail.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/serial/option.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -283,6 +283,7 @@ static void option_instat_callback(struc #define TELIT_PRODUCT_LE922_USBCFG3 0x1043 #define TELIT_PRODUCT_LE922_USBCFG5 0x1045 #define TELIT_PRODUCT_ME910 0x1100 +#define TELIT_PRODUCT_ME910_DUAL_MODEM 0x1101 #define TELIT_PRODUCT_LE920 0x1200 #define TELIT_PRODUCT_LE910 0x1201 #define TELIT_PRODUCT_LE910_USBCFG4 0x1206 @@ -648,6 +649,11 @@ static const struct option_blacklist_inf .reserved = BIT(1) | BIT(3), }; +static const struct option_blacklist_info telit_me910_dual_modem_blacklist = { + .sendsetup = BIT(0), + .reserved = BIT(3), +}; + static const struct option_blacklist_info telit_le910_blacklist = { .sendsetup = BIT(0), .reserved = BIT(1) | BIT(2), @@ -1247,6 +1253,8 @@ static const struct usb_device_id option .driver_info = (kernel_ulong_t)&telit_le922_blacklist_usbcfg0 }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910), .driver_info = (kernel_ulong_t)&telit_me910_blacklist }, + { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM), + .driver_info = (kernel_ulong_t)&telit_me910_dual_modem_blacklist }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910), .driver_info = (kernel_ulong_t)&telit_le910_blacklist }, { USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4), Patches currently in stable-queue which might be from dnlplm(a)gmail.com are queue-4.14/usb-serial-option-add-support-for-telit-me910-pid-0x1101.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "USB: serial: ftdi_sio: add id for Airbus DS P8GR" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled USB: serial: ftdi_sio: add id for Airbus DS P8GR to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-serial-ftdi_sio-add-id-for-airbus-ds-p8gr.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From c6a36ad383559a60a249aa6016cebf3cb8b6c485 Mon Sep 17 00:00:00 2001 From: Max Schulze <max.schulze(a)posteo.de> Date: Wed, 20 Dec 2017 20:47:44 +0100 Subject: USB: serial: ftdi_sio: add id for Airbus DS P8GR From: Max Schulze <max.schulze(a)posteo.de> commit c6a36ad383559a60a249aa6016cebf3cb8b6c485 upstream. Add AIRBUS_DS_P8GR device IDs to ftdi_sio driver. Signed-off-by: Max Schulze <max.schulze(a)posteo.de> Signed-off-by: Johan Hovold <johan(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/serial/ftdi_sio.c | 1 + drivers/usb/serial/ftdi_sio_ids.h | 6 ++++++ 2 files changed, 7 insertions(+) --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1017,6 +1017,7 @@ static const struct usb_device_id id_tab .driver_info = (kernel_ulong_t)&ftdi_jtag_quirk }, { USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_BT_USB_PID) }, { USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_WL_USB_PID) }, + { USB_DEVICE(AIRBUS_DS_VID, AIRBUS_DS_P8GR) }, { } /* Terminating entry */ }; --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -915,6 +915,12 @@ #define ICPDAS_I7563U_PID 0x0105 /* + * Airbus Defence and Space + */ +#define AIRBUS_DS_VID 0x1e8e /* Vendor ID */ +#define AIRBUS_DS_P8GR 0x6001 /* Tetra P8GR */ + +/* * RT Systems programming cables for various ham radios */ #define RTSYSTEMS_VID 0x2100 /* Vendor ID */ Patches currently in stable-queue which might be from max.schulze(a)posteo.de are queue-4.14/usb-serial-ftdi_sio-add-id-for-airbus-ds-p8gr.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "USB: Fix off by one in type-specific length check of BOS SSP capability" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled USB: Fix off by one in type-specific length check of BOS SSP capability to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-fix-off-by-one-in-type-specific-length-check-of-bos-ssp-capability.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 07b9f12864d16c3a861aef4817eb1efccbc5d0e6 Mon Sep 17 00:00:00 2001 From: Mathias Nyman <mathias.nyman(a)linux.intel.com> Date: Tue, 19 Dec 2017 11:14:42 +0200 Subject: USB: Fix off by one in type-specific length check of BOS SSP capability From: Mathias Nyman <mathias.nyman(a)linux.intel.com> commit 07b9f12864d16c3a861aef4817eb1efccbc5d0e6 upstream. USB 3.1 devices are not detected as 3.1 capable since 4.15-rc3 due to a off by one in commit 81cf4a45360f ("USB: core: Add type-specific length check of BOS descriptors") It uses USB_DT_USB_SSP_CAP_SIZE() to get SSP capability size which takes the zero based SSAC as argument, not the actual count of sublink speed attributes. USB3 spec 9.6.2.5 says "The number of Sublink Speed Attributes = SSAC + 1." The type-specific length check patch was added to stable and needs to be fixed there as well Fixes: 81cf4a45360f ("USB: core: Add type-specific length check of BOS descriptors") CC: Masakazu Mokuno <masakazu.mokuno(a)gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/core/config.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c @@ -1007,7 +1007,7 @@ int usb_get_bos_descriptor(struct usb_de case USB_SSP_CAP_TYPE: ssp_cap = (struct usb_ssp_cap_descriptor *)buffer; ssac = (le32_to_cpu(ssp_cap->bmAttributes) & - USB_SSP_SUBLINK_SPEED_ATTRIBS) + 1; + USB_SSP_SUBLINK_SPEED_ATTRIBS); if (length >= USB_DT_USB_SSP_CAP_SIZE(ssac)) dev->bos->ssp_cap = ssp_cap; break; Patches currently in stable-queue which might be from mathias.nyman(a)linux.intel.com are queue-4.14/usb-fix-off-by-one-in-type-specific-length-check-of-bos-ssp-capability.patch queue-4.14/usb-xhci-add-xhci_trust_tx_length-for-renesas-upd720201.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "USB: chipidea: msm: fix ulpi-node lookup" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled USB: chipidea: msm: fix ulpi-node lookup to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-chipidea-msm-fix-ulpi-node-lookup.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 964728f9f407eca0b417fdf8e784b7a76979490c Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan(a)kernel.org> Date: Mon, 13 Nov 2017 11:12:58 +0100 Subject: USB: chipidea: msm: fix ulpi-node lookup From: Johan Hovold <johan(a)kernel.org> commit 964728f9f407eca0b417fdf8e784b7a76979490c upstream. Fix child-node lookup during probe, which ended up searching the whole device tree depth-first starting at the parent rather than just matching on its children. Note that the original premature free of the parent node has already been fixed separately, but that fix was apparently never backported to stable. Fixes: 47654a162081 ("usb: chipidea: msm: Restore wrapper settings after reset") Fixes: b74c43156c0c ("usb: chipidea: msm: ci_hdrc_msm_probe() missing of_node_get()") Cc: Stephen Boyd <stephen.boyd(a)linaro.org> Cc: Frank Rowand <frank.rowand(a)sony.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> Signed-off-by: Peter Chen <peter.chen(a)nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/chipidea/ci_hdrc_msm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/chipidea/ci_hdrc_msm.c +++ b/drivers/usb/chipidea/ci_hdrc_msm.c @@ -251,7 +251,7 @@ static int ci_hdrc_msm_probe(struct plat if (ret) goto err_mux; - ulpi_node = of_find_node_by_name(of_node_get(pdev->dev.of_node), "ulpi"); + ulpi_node = of_get_child_by_name(pdev->dev.of_node, "ulpi"); if (ulpi_node) { phy_node = of_get_next_available_child(ulpi_node, NULL); ci->hsic = of_device_is_compatible(phy_node, "qcom,usb-hsic-phy"); Patches currently in stable-queue which might be from johan(a)kernel.org are queue-4.14/asoc-twl4030-fix-child-node-lookup.patch queue-4.14/usb-serial-qcserial-add-sierra-wireless-em7565.patch queue-4.14/usb-chipidea-msm-fix-ulpi-node-lookup.patch queue-4.14/usb-serial-ftdi_sio-add-id-for-airbus-ds-p8gr.patch queue-4.14/usb-serial-option-adding-support-for-yuga-clm920-nc5.patch queue-4.14/usb-serial-option-add-support-for-telit-me910-pid-0x1101.patch queue-4.14/phy-tegra-fix-device-tree-node-lookups.patch queue-4.14/asoc-da7218-fix-fix-child-node-lookup.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "usb: add RESET_RESUME for ELSA MicroLink 56K" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usb: add RESET_RESUME for ELSA MicroLink 56K to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-add-reset_resume-for-elsa-microlink-56k.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From b9096d9f15c142574ebebe8fbb137012bb9d99c2 Mon Sep 17 00:00:00 2001 From: Oliver Neukum <oneukum(a)suse.com> Date: Tue, 12 Dec 2017 16:11:30 +0100 Subject: usb: add RESET_RESUME for ELSA MicroLink 56K From: Oliver Neukum <oneukum(a)suse.com> commit b9096d9f15c142574ebebe8fbb137012bb9d99c2 upstream. This modem needs this quirk to operate. It produces timeouts when resumed without reset. Signed-off-by: Oliver Neukum <oneukum(a)suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -155,6 +155,9 @@ static const struct usb_device_id usb_qu /* Genesys Logic hub, internally used by KY-688 USB 3.1 Type-C Hub */ { USB_DEVICE(0x05e3, 0x0612), .driver_info = USB_QUIRK_NO_LPM }, + /* ELSA MicroLink 56K */ + { USB_DEVICE(0x05cc, 0x2267), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Genesys Logic hub, internally used by Moshi USB to Ethernet Adapter */ { USB_DEVICE(0x05e3, 0x0616), .driver_info = USB_QUIRK_NO_LPM }, Patches currently in stable-queue which might be from oneukum(a)suse.com are queue-4.14/usb-add-reset_resume-for-elsa-microlink-56k.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "usb: Add device quirk for Logitech HD Pro Webcam C925e" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usb: Add device quirk for Logitech HD Pro Webcam C925e to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usb-add-device-quirk-for-logitech-hd-pro-webcam-c925e.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 7f038d256c723dd390d2fca942919573995f4cfd Mon Sep 17 00:00:00 2001 From: Dmitry Fleytman Dmitry Fleytman <dmitry.fleytman(a)gmail.com> Date: Tue, 19 Dec 2017 06:02:04 +0200 Subject: usb: Add device quirk for Logitech HD Pro Webcam C925e From: Dmitry Fleytman Dmitry Fleytman <dmitry.fleytman(a)gmail.com> commit 7f038d256c723dd390d2fca942919573995f4cfd upstream. Commit e0429362ab15 ("usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e") introduced quirk to workaround an issue with some Logitech webcams. There is one more model that has the same issue - C925e, so applying the same quirk as well. See aforementioned commit message for detailed explanation of the problem. Signed-off-by: Dmitry Fleytman <dmitry.fleytman(a)gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/core/quirks.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -57,10 +57,11 @@ static const struct usb_device_id usb_qu /* Microsoft LifeCam-VX700 v2.0 */ { USB_DEVICE(0x045e, 0x0770), .driver_info = USB_QUIRK_RESET_RESUME }, - /* Logitech HD Pro Webcams C920, C920-C and C930e */ + /* Logitech HD Pro Webcams C920, C920-C, C925e and C930e */ { USB_DEVICE(0x046d, 0x082d), .driver_info = USB_QUIRK_DELAY_INIT }, { USB_DEVICE(0x046d, 0x0841), .driver_info = USB_QUIRK_DELAY_INIT }, { USB_DEVICE(0x046d, 0x0843), .driver_info = USB_QUIRK_DELAY_INIT }, + { USB_DEVICE(0x046d, 0x085b), .driver_info = USB_QUIRK_DELAY_INIT }, /* Logitech ConferenceCam CC3000e */ { USB_DEVICE(0x046d, 0x0847), .driver_info = USB_QUIRK_DELAY_INIT }, Patches currently in stable-queue which might be from dmitry.fleytman(a)gmail.com are queue-4.14/usb-add-device-quirk-for-logitech-hd-pro-webcam-c925e.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "timers: Use deferrable base independent of base::nohz_active" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled timers: Use deferrable base independent of base::nohz_active to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: timers-use-deferrable-base-independent-of-base-nohz_active.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From ced6d5c11d3e7b342f1a80f908e6756ebd4b8ddd Mon Sep 17 00:00:00 2001 From: Anna-Maria Gleixner <anna-maria(a)linutronix.de> Date: Fri, 22 Dec 2017 15:51:12 +0100 Subject: timers: Use deferrable base independent of base::nohz_active From: Anna-Maria Gleixner <anna-maria(a)linutronix.de> commit ced6d5c11d3e7b342f1a80f908e6756ebd4b8ddd upstream. During boot and before base::nohz_active is set in the timer bases, deferrable timers are enqueued into the standard timer base. This works correctly as long as base::nohz_active is false. Once it base::nohz_active is set and a timer which was enqueued before that is accessed the lock selector code choses the lock of the deferred base. This causes unlocked access to the standard base and in case the timer is removed it does not clear the pending flag in the standard base bitmap which causes get_next_timer_interrupt() to return bogus values. To prevent that, the deferrable timers must be enqueued in the deferrable base, even when base::nohz_active is not set. Those deferrable timers also need to be expired unconditional. Fixes: 500462a9de65 ("timers: Switch to a non-cascading wheel") Signed-off-by: Anna-Maria Gleixner <anna-maria(a)linutronix.de> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Reviewed-by: Frederic Weisbecker <fweisbec(a)gmail.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Sebastian Siewior <bigeasy(a)linutronix.de> Cc: rt(a)linutronix.de Cc: Paul McKenney <paulmck(a)linux.vnet.ibm.com> Link: https://lkml.kernel.org/r/20171222145337.633328378@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- kernel/time/timer.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -814,11 +814,10 @@ static inline struct timer_base *get_tim struct timer_base *base = per_cpu_ptr(&timer_bases[BASE_STD], cpu); /* - * If the timer is deferrable and nohz is active then we need to use - * the deferrable base. + * If the timer is deferrable and NO_HZ_COMMON is set then we need + * to use the deferrable base. */ - if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && base->nohz_active && - (tflags & TIMER_DEFERRABLE)) + if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && (tflags & TIMER_DEFERRABLE)) base = per_cpu_ptr(&timer_bases[BASE_DEF], cpu); return base; } @@ -828,11 +827,10 @@ static inline struct timer_base *get_tim struct timer_base *base = this_cpu_ptr(&timer_bases[BASE_STD]); /* - * If the timer is deferrable and nohz is active then we need to use - * the deferrable base. + * If the timer is deferrable and NO_HZ_COMMON is set then we need + * to use the deferrable base. */ - if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && base->nohz_active && - (tflags & TIMER_DEFERRABLE)) + if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && (tflags & TIMER_DEFERRABLE)) base = this_cpu_ptr(&timer_bases[BASE_DEF]); return base; } @@ -1644,7 +1642,7 @@ static __latent_entropy void run_timer_s base->must_forward_clk = false; __run_timers(base); - if (IS_ENABLED(CONFIG_NO_HZ_COMMON) && base->nohz_active) + if (IS_ENABLED(CONFIG_NO_HZ_COMMON)) __run_timers(this_cpu_ptr(&timer_bases[BASE_DEF])); } Patches currently in stable-queue which might be from anna-maria(a)linutronix.de are queue-4.14/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.14/timers-invoke-timer_start_debug-where-it-makes-sense.patch queue-4.14/timers-use-deferrable-base-independent-of-base-nohz_active.patch queue-4.14/timers-reinitialize-per-cpu-bases-on-hotplug.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "timers: Reinitialize per cpu bases on hotplug" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled timers: Reinitialize per cpu bases on hotplug to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: timers-reinitialize-per-cpu-bases-on-hotplug.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 26456f87aca7157c057de65c9414b37f1ab881d1 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx(a)linutronix.de> Date: Wed, 27 Dec 2017 21:37:25 +0100 Subject: timers: Reinitialize per cpu bases on hotplug From: Thomas Gleixner <tglx(a)linutronix.de> commit 26456f87aca7157c057de65c9414b37f1ab881d1 upstream. The timer wheel bases are not (re)initialized on CPU hotplug. That leaves them with a potentially stale clk and next_expiry valuem, which can cause trouble then the CPU is plugged. Add a prepare callback which forwards the clock, sets next_expiry to far in the future and reset the control flags to a known state. Set base->must_forward_clk so the first timer which is queued will try to forward the clock to current jiffies. Fixes: 500462a9de65 ("timers: Switch to a non-cascading wheel") Reported-by: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Frederic Weisbecker <fweisbec(a)gmail.com> Cc: Sebastian Siewior <bigeasy(a)linutronix.de> Cc: Anna-Maria Gleixner <anna-maria(a)linutronix.de> Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1712272152200.2431@nanos Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- include/linux/cpuhotplug.h | 2 +- include/linux/timer.h | 4 +++- kernel/cpu.c | 4 ++-- kernel/time/timer.c | 15 +++++++++++++++ 4 files changed, 21 insertions(+), 4 deletions(-) --- a/include/linux/cpuhotplug.h +++ b/include/linux/cpuhotplug.h @@ -86,7 +86,7 @@ enum cpuhp_state { CPUHP_MM_ZSWP_POOL_PREPARE, CPUHP_KVM_PPC_BOOK3S_PREPARE, CPUHP_ZCOMP_PREPARE, - CPUHP_TIMERS_DEAD, + CPUHP_TIMERS_PREPARE, CPUHP_MIPS_SOC_PREPARE, CPUHP_BP_PREPARE_DYN, CPUHP_BP_PREPARE_DYN_END = CPUHP_BP_PREPARE_DYN + 20, --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -246,9 +246,11 @@ unsigned long round_jiffies_up(unsigned unsigned long round_jiffies_up_relative(unsigned long j); #ifdef CONFIG_HOTPLUG_CPU +int timers_prepare_cpu(unsigned int cpu); int timers_dead_cpu(unsigned int cpu); #else -#define timers_dead_cpu NULL +#define timers_prepare_cpu NULL +#define timers_dead_cpu NULL #endif #endif --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -1277,9 +1277,9 @@ static struct cpuhp_step cpuhp_bp_states * before blk_mq_queue_reinit_notify() from notify_dead(), * otherwise a RCU stall occurs. */ - [CPUHP_TIMERS_DEAD] = { + [CPUHP_TIMERS_PREPARE] = { .name = "timers:dead", - .startup.single = NULL, + .startup.single = timers_prepare_cpu, .teardown.single = timers_dead_cpu, }, /* Kicks the plugged cpu into life */ --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -1801,6 +1801,21 @@ static void migrate_timer_list(struct ti } } +int timers_prepare_cpu(unsigned int cpu) +{ + struct timer_base *base; + int b; + + for (b = 0; b < NR_BASES; b++) { + base = per_cpu_ptr(&timer_bases[b], cpu); + base->clk = jiffies; + base->next_expiry = base->clk + NEXT_TIMER_MAX_DELTA; + base->is_idle = false; + base->must_forward_clk = true; + } + return 0; +} + int timers_dead_cpu(unsigned int cpu) { struct timer_base *old_base; Patches currently in stable-queue which might be from tglx(a)linutronix.de are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/timers-invoke-timer_start_debug-where-it-makes-sense.patch queue-4.14/revert-mlx5-move-affinity-hints-assignments-to-generic-code.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-ldt-make-ldt-pgtable-free-conditional.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/timers-use-deferrable-base-independent-of-base-nohz_active.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/timers-reinitialize-per-cpu-bases-on-hotplug.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "timers: Invoke timer_start_debug() where it makes sense" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled timers: Invoke timer_start_debug() where it makes sense to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: timers-invoke-timer_start_debug-where-it-makes-sense.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From fd45bb77ad682be728d1002431d77b8c73342836 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx(a)linutronix.de> Date: Fri, 22 Dec 2017 15:51:14 +0100 Subject: timers: Invoke timer_start_debug() where it makes sense From: Thomas Gleixner <tglx(a)linutronix.de> commit fd45bb77ad682be728d1002431d77b8c73342836 upstream. The timer start debug function is called before the proper timer base is set. As a consequence the trace data contains the stale CPU and flags values. Call the debug function after setting the new base and flags. Fixes: 500462a9de65 ("timers: Switch to a non-cascading wheel") Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Frederic Weisbecker <fweisbec(a)gmail.com> Cc: Sebastian Siewior <bigeasy(a)linutronix.de> Cc: rt(a)linutronix.de Cc: Paul McKenney <paulmck(a)linux.vnet.ibm.com> Cc: Anna-Maria Gleixner <anna-maria(a)linutronix.de> Link: https://lkml.kernel.org/r/20171222145337.792907137@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- kernel/time/timer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/kernel/time/timer.c +++ b/kernel/time/timer.c @@ -982,8 +982,6 @@ __mod_timer(struct timer_list *timer, un if (!ret && pending_only) goto out_unlock; - debug_activate(timer, expires); - new_base = get_target_base(base, timer->flags); if (base != new_base) { @@ -1007,6 +1005,8 @@ __mod_timer(struct timer_list *timer, un } } + debug_activate(timer, expires); + timer->expires = expires; /* * If 'idx' was calculated above and the base time did not advance Patches currently in stable-queue which might be from tglx(a)linutronix.de are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/timers-invoke-timer_start_debug-where-it-makes-sense.patch queue-4.14/revert-mlx5-move-affinity-hints-assignments-to-generic-code.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-ldt-make-ldt-pgtable-free-conditional.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/timers-use-deferrable-base-independent-of-base-nohz_active.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/timers-reinitialize-per-cpu-bases-on-hotplug.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "staging: android: ion: Fix dma direction for dma_sync_sg_for_cpu/device" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled staging: android: ion: Fix dma direction for dma_sync_sg_for_cpu/device to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: staging-android-ion-fix-dma-direction-for-dma_sync_sg_for_cpu-device.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From d6b246bb7a29703f53aa4c050b8b3205d749caee Mon Sep 17 00:00:00 2001 From: Sushmita Susheelendra <ssusheel(a)codeaurora.org> Date: Fri, 15 Dec 2017 13:59:13 -0700 Subject: staging: android: ion: Fix dma direction for dma_sync_sg_for_cpu/device From: Sushmita Susheelendra <ssusheel(a)codeaurora.org> commit d6b246bb7a29703f53aa4c050b8b3205d749caee upstream. Use the direction argument passed into begin_cpu_access and end_cpu_access when calling the dma_sync_sg_for_cpu/device. The actual cache primitive called depends on the direction passed in. Signed-off-by: Sushmita Susheelendra <ssusheel(a)codeaurora.org> Acked-by: Laura Abbott <labbott(a)redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/staging/android/ion/ion.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -348,7 +348,7 @@ static int ion_dma_buf_begin_cpu_access( mutex_lock(&buffer->lock); list_for_each_entry(a, &buffer->attachments, list) { dma_sync_sg_for_cpu(a->dev, a->table->sgl, a->table->nents, - DMA_BIDIRECTIONAL); + direction); } mutex_unlock(&buffer->lock); @@ -370,7 +370,7 @@ static int ion_dma_buf_end_cpu_access(st mutex_lock(&buffer->lock); list_for_each_entry(a, &buffer->attachments, list) { dma_sync_sg_for_device(a->dev, a->table->sgl, a->table->nents, - DMA_BIDIRECTIONAL); + direction); } mutex_unlock(&buffer->lock); Patches currently in stable-queue which might be from ssusheel(a)codeaurora.org are queue-4.14/staging-android-ion-fix-dma-direction-for-dma_sync_sg_for_cpu-device.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "phy: tegra: fix device-tree node lookups" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled phy: tegra: fix device-tree node lookups to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: phy-tegra-fix-device-tree-node-lookups.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 046046737bd35bed047460f080ea47e186be731e Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan(a)kernel.org> Date: Wed, 15 Nov 2017 10:43:16 +0100 Subject: phy: tegra: fix device-tree node lookups From: Johan Hovold <johan(a)kernel.org> commit 046046737bd35bed047460f080ea47e186be731e upstream. Fix child-node lookups during probe, which ended up searching the whole device tree depth-first starting at the parents rather than just matching on their children. To make things worse, some parent nodes could end up being being prematurely freed (by tegra_xusb_pad_register()) as of_find_node_by_name() drops a reference to its first argument. Fixes: 53d2a715c240 ("phy: Add Tegra XUSB pad controller support") Cc: Thierry Reding <treding(a)nvidia.com> Signed-off-by: Johan Hovold <johan(a)kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon(a)ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/phy/tegra/xusb.c | 60 +++++++++++++++++++++++------------------------ 1 file changed, 30 insertions(+), 30 deletions(-) --- a/drivers/phy/tegra/xusb.c +++ b/drivers/phy/tegra/xusb.c @@ -75,14 +75,14 @@ MODULE_DEVICE_TABLE(of, tegra_xusb_padct static struct device_node * tegra_xusb_find_pad_node(struct tegra_xusb_padctl *padctl, const char *name) { - /* - * of_find_node_by_name() drops a reference, so make sure to grab one. - */ - struct device_node *np = of_node_get(padctl->dev->of_node); + struct device_node *pads, *np; - np = of_find_node_by_name(np, "pads"); - if (np) - np = of_find_node_by_name(np, name); + pads = of_get_child_by_name(padctl->dev->of_node, "pads"); + if (!pads) + return NULL; + + np = of_get_child_by_name(pads, name); + of_node_put(pads); return np; } @@ -90,16 +90,16 @@ tegra_xusb_find_pad_node(struct tegra_xu static struct device_node * tegra_xusb_pad_find_phy_node(struct tegra_xusb_pad *pad, unsigned int index) { - /* - * of_find_node_by_name() drops a reference, so make sure to grab one. - */ - struct device_node *np = of_node_get(pad->dev.of_node); + struct device_node *np, *lanes; - np = of_find_node_by_name(np, "lanes"); - if (!np) + lanes = of_get_child_by_name(pad->dev.of_node, "lanes"); + if (!lanes) return NULL; - return of_find_node_by_name(np, pad->soc->lanes[index].name); + np = of_get_child_by_name(lanes, pad->soc->lanes[index].name); + of_node_put(lanes); + + return np; } static int @@ -195,7 +195,7 @@ int tegra_xusb_pad_register(struct tegra unsigned int i; int err; - children = of_find_node_by_name(pad->dev.of_node, "lanes"); + children = of_get_child_by_name(pad->dev.of_node, "lanes"); if (!children) return -ENODEV; @@ -444,21 +444,21 @@ static struct device_node * tegra_xusb_find_port_node(struct tegra_xusb_padctl *padctl, const char *type, unsigned int index) { - /* - * of_find_node_by_name() drops a reference, so make sure to grab one. - */ - struct device_node *np = of_node_get(padctl->dev->of_node); + struct device_node *ports, *np; + char *name; + + ports = of_get_child_by_name(padctl->dev->of_node, "ports"); + if (!ports) + return NULL; - np = of_find_node_by_name(np, "ports"); - if (np) { - char *name; - - name = kasprintf(GFP_KERNEL, "%s-%u", type, index); - if (!name) - return ERR_PTR(-ENOMEM); - np = of_find_node_by_name(np, name); - kfree(name); + name = kasprintf(GFP_KERNEL, "%s-%u", type, index); + if (!name) { + of_node_put(ports); + return ERR_PTR(-ENOMEM); } + np = of_get_child_by_name(ports, name); + kfree(name); + of_node_put(ports); return np; } @@ -847,7 +847,7 @@ static void tegra_xusb_remove_ports(stru static int tegra_xusb_padctl_probe(struct platform_device *pdev) { - struct device_node *np = of_node_get(pdev->dev.of_node); + struct device_node *np = pdev->dev.of_node; const struct tegra_xusb_padctl_soc *soc; struct tegra_xusb_padctl *padctl; const struct of_device_id *match; @@ -855,7 +855,7 @@ static int tegra_xusb_padctl_probe(struc int err; /* for backwards compatibility with old device trees */ - np = of_find_node_by_name(np, "pads"); + np = of_get_child_by_name(np, "pads"); if (!np) { dev_warn(&pdev->dev, "deprecated DT, using legacy driver\n"); return tegra_xusb_padctl_legacy_probe(pdev); Patches currently in stable-queue which might be from johan(a)kernel.org are queue-4.14/asoc-twl4030-fix-child-node-lookup.patch queue-4.14/usb-serial-qcserial-add-sierra-wireless-em7565.patch queue-4.14/usb-chipidea-msm-fix-ulpi-node-lookup.patch queue-4.14/usb-serial-ftdi_sio-add-id-for-airbus-ds-p8gr.patch queue-4.14/usb-serial-option-adding-support-for-yuga-clm920-nc5.patch queue-4.14/usb-serial-option-add-support-for-telit-me910-pid-0x1101.patch queue-4.14/phy-tegra-fix-device-tree-node-lookups.patch queue-4.14/asoc-da7218-fix-fix-child-node-lookup.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick()" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick() to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 5d62c183f9e9df1deeea0906d099a94e8a43047a Mon Sep 17 00:00:00 2001 From: Thomas Gleixner <tglx(a)linutronix.de> Date: Fri, 22 Dec 2017 15:51:13 +0100 Subject: nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick() From: Thomas Gleixner <tglx(a)linutronix.de> commit 5d62c183f9e9df1deeea0906d099a94e8a43047a upstream. The conditions in irq_exit() to invoke tick_nohz_irq_exit() which subsequently invokes tick_nohz_stop_sched_tick() are: if ((idle_cpu(cpu) && !need_resched()) || tick_nohz_full_cpu(cpu)) If need_resched() is not set, but a timer softirq is pending then this is an indication that the softirq code punted and delegated the execution to softirqd. need_resched() is not true because the current interrupted task takes precedence over softirqd. Invoking tick_nohz_irq_exit() in this case can cause an endless loop of timer interrupts because the timer wheel contains an expired timer, but softirqs are not yet executed. So it returns an immediate expiry request, which causes the timer to fire immediately again. Lather, rinse and repeat.... Prevent that by adding a check for a pending timer soft interrupt to the conditions in tick_nohz_stop_sched_tick() which avoid calling get_next_timer_interrupt(). That keeps the tick sched timer on the tick and prevents a repetitive programming of an already expired timer. Reported-by: Sebastian Siewior <bigeasy(a)linutronix.d> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Acked-by: Frederic Weisbecker <fweisbec(a)gmail.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Paul McKenney <paulmck(a)linux.vnet.ibm.com> Cc: Anna-Maria Gleixner <anna-maria(a)linutronix.de> Cc: Sebastian Siewior <bigeasy(a)linutronix.de> Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1712272156050.2431@nanos Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- kernel/time/tick-sched.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -674,6 +674,11 @@ static void tick_nohz_restart(struct tic ts->next_tick = 0; } +static inline bool local_timer_softirq_pending(void) +{ + return local_softirq_pending() & TIMER_SOFTIRQ; +} + static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts, ktime_t now, int cpu) { @@ -690,8 +695,18 @@ static ktime_t tick_nohz_stop_sched_tick } while (read_seqretry(&jiffies_lock, seq)); ts->last_jiffies = basejiff; - if (rcu_needs_cpu(basemono, &next_rcu) || - arch_needs_cpu() || irq_work_needs_cpu()) { + /* + * Keep the periodic tick, when RCU, architecture or irq_work + * requests it. + * Aside of that check whether the local timer softirq is + * pending. If so its a bad idea to call get_next_timer_interrupt() + * because there is an already expired timer, so it will request + * immeditate expiry, which rearms the hardware timer with a + * minimal delta which brings us back to this place + * immediately. Lather, rinse and repeat... + */ + if (rcu_needs_cpu(basemono, &next_rcu) || arch_needs_cpu() || + irq_work_needs_cpu() || local_timer_softirq_pending()) { next_tick = basemono + TICK_NSEC; } else { /* Patches currently in stable-queue which might be from tglx(a)linutronix.de are queue-4.14/x86-mm-pti-allow-nx-poison-to-be-set-in-p4d-pgd.patch queue-4.14/nohz-prevent-a-timer-interrupt-storm-in-tick_nohz_stop_sched_tick.patch queue-4.14/x86-dumpstack-indicate-in-oops-whether-pti-is-configured-and-enabled.patch queue-4.14/x86-mm-remove-preempt_disable-enable-from-__native_flush_tlb.patch queue-4.14/x86-mm-clarify-the-whole-asid-kernel-pcid-user-pcid-naming.patch queue-4.14/x86-ldt-plug-memory-leak-in-error-path.patch queue-4.14/x86-mm-abstract-switching-cr3.patch queue-4.14/x86-mm-optimize-restore_cr3.patch queue-4.14/x86-mm-pti-force-entry-through-trampoline-when-pti-active.patch queue-4.14/timers-invoke-timer_start_debug-where-it-makes-sense.patch queue-4.14/revert-mlx5-move-affinity-hints-assignments-to-generic-code.patch queue-4.14/x86-entry-align-entry-text-section-to-pmd-boundary.patch queue-4.14/x86-mm-64-make-a-full-pgd-entry-size-hole-in-the-memory-map.patch queue-4.14/x86-cpu_entry_area-add-debugstore-entries-to-cpu_entry_area.patch queue-4.14/x86-mm-pti-share-entry-text-pmd.patch queue-4.14/x86-ldt-make-the-ldt-mapping-ro.patch queue-4.14/x86-mm-dump_pagetables-check-user-space-page-table-for-wx-pages.patch queue-4.14/x86-pti-map-the-vsyscall-page-if-needed.patch queue-4.14/x86-mm-pti-disable-global-pages-if-page_table_isolation-y.patch queue-4.14/x86-mm-dump_pagetables-allow-dumping-current-pagetables.patch queue-4.14/x86-mm-pti-add-infrastructure-for-page-table-isolation.patch queue-4.14/x86-cpufeatures-add-x86_bug_cpu_insecure.patch queue-4.14/x86-mm-use-fix-pcid-to-optimize-user-kernel-switches.patch queue-4.14/x86-mm-use-invpcid-for-__native_flush_tlb_single.patch queue-4.14/x86-mm-pti-prepare-the-x86-entry-assembly-code-for-entry-exit-cr3-switching.patch queue-4.14/x86-mm-allow-flushing-for-future-asid-switches.patch queue-4.14/x86-mm-pti-add-kconfig.patch queue-4.14/x86-mm-pti-add-mapping-helper-functions.patch queue-4.14/x86-mm-pti-map-espfix-into-user-space.patch queue-4.14/x86-ldt-make-ldt-pgtable-free-conditional.patch queue-4.14/x86-smpboot-remove-stale-tlb-flush-invocations.patch queue-4.14/timers-use-deferrable-base-independent-of-base-nohz_active.patch queue-4.14/x86-mm-pti-share-cpu_entry_area-with-user-space-page-tables.patch queue-4.14/x86-mm-pti-add-functions-to-clone-kernel-pmds.patch queue-4.14/x86-pti-add-the-pti-cmdline-option-and-documentation.patch queue-4.14/timers-reinitialize-per-cpu-bases-on-hotplug.patch queue-4.14/x86-events-intel-ds-map-debug-buffers-in-cpu_entry_area.patch queue-4.14/x86-mm-pti-allocate-a-separate-user-pgd.patch queue-4.14/x86-pti-put-the-ldt-in-its-own-pgd-if-pti-is-on.patch queue-4.14/x86-mm-pti-populate-user-pgd.patch queue-4.14/x86-32-fix-kexec-with-stack-canary-config_cc_stackprotector.patch queue-4.14/x86-espfix-64-fix-espfix-double-fault-handling-on-5-level-systems.patch queue-4.14/x86-mm-dump_pagetables-add-page-table-directory-to-the-debugfs-vfs-hierarchy.patch

7 years, 8 months

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[Linux-stable-mirror] Patch "drivers: base: cacheinfo: fix cache type for non-architected system cache" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled drivers: base: cacheinfo: fix cache type for non-architected system cache to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: drivers-base-cacheinfo-fix-cache-type-for-non-architected-system-cache.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From f57ab9a01a36ef3454333251cc57e3a9948b17bf Mon Sep 17 00:00:00 2001 From: Sudeep Holla <sudeep.holla(a)arm.com> Date: Fri, 17 Nov 2017 11:56:41 +0000 Subject: drivers: base: cacheinfo: fix cache type for non-architected system cache From: Sudeep Holla <sudeep.holla(a)arm.com> commit f57ab9a01a36ef3454333251cc57e3a9948b17bf upstream. Commit dfea747d2aba ("drivers: base: cacheinfo: support DT overrides for cache properties") doesn't initialise the cache type if it's present only in DT and the architecture is not aware of it. They are unified system level cache which are generally transparent. This patch check if the cache type is set to NOCACHE but the DT node indicates that it's unified cache and sets the cache type accordingly. Fixes: dfea747d2aba ("drivers: base: cacheinfo: support DT overrides for cache properties") Reported-and-tested-by: Tan Xiaojun <tanxiaojun(a)huawei.com> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Sudeep Holla <sudeep.holla(a)arm.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/base/cacheinfo.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) --- a/drivers/base/cacheinfo.c +++ b/drivers/base/cacheinfo.c @@ -186,6 +186,11 @@ static void cache_associativity(struct c this_leaf->ways_of_associativity = (size / nr_sets) / line_size; } +static bool cache_node_is_unified(struct cacheinfo *this_leaf) +{ + return of_property_read_bool(this_leaf->of_node, "cache-unified"); +} + static void cache_of_override_properties(unsigned int cpu) { int index; @@ -194,6 +199,14 @@ static void cache_of_override_properties for (index = 0; index < cache_leaves(cpu); index++) { this_leaf = this_cpu_ci->info_list + index; + /* + * init_cache_level must setup the cache level correctly + * overriding the architecturally specified levels, so + * if type is NONE at this stage, it should be unified + */ + if (this_leaf->type == CACHE_TYPE_NOCACHE && + cache_node_is_unified(this_leaf)) + this_leaf->type = CACHE_TYPE_UNIFIED; cache_size(this_leaf); cache_get_line_size(this_leaf); cache_nr_sets(this_leaf); Patches currently in stable-queue which might be from sudeep.holla(a)arm.com are queue-4.14/drivers-base-cacheinfo-fix-cache-type-for-non-architected-system-cache.patch

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