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[Linux-stable-mirror] Patch "KVM: arm/arm64: Fix occasional warning from the timer work function" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled KVM: arm/arm64: Fix occasional warning from the timer work function to the 4.9-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: kvm-arm-arm64-fix-occasional-warning-from-the-timer-work-function.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Christoffer Dall <christoffer.dall(a)linaro.org> Date: Mon, 9 Jan 2017 12:18:56 +0100 Subject: KVM: arm/arm64: Fix occasional warning from the timer work function From: Christoffer Dall <christoffer.dall(a)linaro.org> [ Upstream commit 63e41226afc3f7a044b70325566fa86ac3142538 ] When a VCPU blocks (WFI) and has programmed the vtimer, we program a soft timer to expire in the future to wake up the vcpu thread when appropriate. Because such as wake up involves a vcpu kick, and the timer expire function can get called from interrupt context, and the kick may sleep, we have to schedule the kick in the work function. The work function currently has a warning that gets raised if it turns out that the timer shouldn't fire when it's run, which was added because the idea was that in that case the work should never have been cancelled. However, it turns out that this whole thing is racy and we can get spurious warnings. The problem is that we clear the armed flag in the work function, which may run in parallel with the kvm_timer_unschedule->timer_disarm() call. This results in a possible situation where the timer_disarm() call does not call cancel_work_sync(), which effectively synchronizes the completion of the work function with running the VCPU. As a result, the VCPU thread proceeds before the work function completees, causing changes to the timer state such that kvm_timer_should_fire(vcpu) returns false in the work function. All we do in the work function is to kick the VCPU, and an occasional rare extra kick never harmed anyone. Since the race above is extremely rare, we don't bother checking if the race happens but simply remove the check and the clearing of the armed flag from the work function. Reported-by: Matthias Brugger <mbrugger(a)suse.com> Reviewed-by: Marc Zyngier <marc.zyngier(a)arm.com> Signed-off-by: Christoffer Dall <christoffer.dall(a)linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier(a)arm.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- virt/kvm/arm/arch_timer.c | 3 --- 1 file changed, 3 deletions(-) --- a/virt/kvm/arm/arch_timer.c +++ b/virt/kvm/arm/arch_timer.c @@ -89,9 +89,6 @@ static void kvm_timer_inject_irq_work(st struct kvm_vcpu *vcpu; vcpu = container_of(work, struct kvm_vcpu, arch.timer_cpu.expired); - vcpu->arch.timer_cpu.armed = false; - - WARN_ON(!kvm_timer_should_fire(vcpu)); /* * If the vcpu is blocked we want to wake it up so that it will see Patches currently in stable-queue which might be from christoffer.dall(a)linaro.org are queue-4.9/kvm-arm-arm64-fix-occasional-warning-from-the-timer-work-function.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "kprobes/x86: Disable preemption in ftrace-based jprobes" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled kprobes/x86: Disable preemption in ftrace-based jprobes to the 4.9-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: kprobes-x86-disable-preemption-in-ftrace-based-jprobes.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Masami Hiramatsu <mhiramat(a)kernel.org> Date: Tue, 19 Sep 2017 19:01:40 +0900 Subject: kprobes/x86: Disable preemption in ftrace-based jprobes From: Masami Hiramatsu <mhiramat(a)kernel.org> [ Upstream commit 5bb4fc2d8641219732eb2bb654206775a4219aca ] Disable preemption in ftrace-based jprobe handlers as described in Documentation/kprobes.txt: "Probe handlers are run with preemption disabled." This will fix jprobes behavior when CONFIG_PREEMPT=y. Signed-off-by: Masami Hiramatsu <mhiramat(a)kernel.org> Cc: Alexei Starovoitov <ast(a)fb.com> Cc: Alexei Starovoitov <ast(a)kernel.org> Cc: Ananth N Mavinakayanahalli <ananth(a)linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Paul E . McKenney <paulmck(a)linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Steven Rostedt <rostedt(a)goodmis.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Link: http://lkml.kernel.org/r/150581530024.32348.9863783558598926771.stgit@devbox Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/x86/kernel/kprobes/ftrace.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) --- a/arch/x86/kernel/kprobes/ftrace.c +++ b/arch/x86/kernel/kprobes/ftrace.c @@ -26,7 +26,7 @@ #include "common.h" static nokprobe_inline -int __skip_singlestep(struct kprobe *p, struct pt_regs *regs, +void __skip_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb, unsigned long orig_ip) { /* @@ -41,20 +41,21 @@ int __skip_singlestep(struct kprobe *p, __this_cpu_write(current_kprobe, NULL); if (orig_ip) regs->ip = orig_ip; - return 1; } int skip_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb) { - if (kprobe_ftrace(p)) - return __skip_singlestep(p, regs, kcb, 0); - else - return 0; + if (kprobe_ftrace(p)) { + __skip_singlestep(p, regs, kcb, 0); + preempt_enable_no_resched(); + return 1; + } + return 0; } NOKPROBE_SYMBOL(skip_singlestep); -/* Ftrace callback handler for kprobes */ +/* Ftrace callback handler for kprobes -- called under preepmt disabed */ void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip, struct ftrace_ops *ops, struct pt_regs *regs) { @@ -77,13 +78,17 @@ void kprobe_ftrace_handler(unsigned long /* Kprobe handler expects regs->ip = ip + 1 as breakpoint hit */ regs->ip = ip + sizeof(kprobe_opcode_t); + /* To emulate trap based kprobes, preempt_disable here */ + preempt_disable(); __this_cpu_write(current_kprobe, p); kcb->kprobe_status = KPROBE_HIT_ACTIVE; - if (!p->pre_handler || !p->pre_handler(p, regs)) + if (!p->pre_handler || !p->pre_handler(p, regs)) { __skip_singlestep(p, regs, kcb, orig_ip); + preempt_enable_no_resched(); + } /* * If pre_handler returns !0, it sets regs->ip and - * resets current kprobe. + * resets current kprobe, and keep preempt count +1. */ } end: Patches currently in stable-queue which might be from mhiramat(a)kernel.org are queue-4.9/kprobes-use-synchronize_rcu_tasks-for-optprobe-with-config_preempt-y.patch queue-4.9/kprobes-x86-disable-preemption-in-ftrace-based-jprobes.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y to the 4.9-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: kprobes-use-synchronize_rcu_tasks-for-optprobe-with-config_preempt-y.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Masami Hiramatsu <mhiramat(a)kernel.org> Date: Fri, 20 Oct 2017 08:43:39 +0900 Subject: kprobes: Use synchronize_rcu_tasks() for optprobe with CONFIG_PREEMPT=y From: Masami Hiramatsu <mhiramat(a)kernel.org> [ Upstream commit a30b85df7d599f626973e9cd3056fe755bd778e0 ] We want to wait for all potentially preempted kprobes trampoline execution to have completed. This guarantees that any freed trampoline memory is not in use by any task in the system anymore. synchronize_rcu_tasks() gives such a guarantee, so use it. Also, this guarantees to wait for all potentially preempted tasks on the instructions which will be replaced with a jump. Since this becomes a problem only when CONFIG_PREEMPT=y, enable CONFIG_TASKS_RCU=y for synchronize_rcu_tasks() in that case. Signed-off-by: Masami Hiramatsu <mhiramat(a)kernel.org> Acked-by: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth(a)linux.vnet.ibm.com> Cc: Linus Torvalds <torvalds(a)linux-foundation.org> Cc: Naveen N . Rao <naveen.n.rao(a)linux.vnet.ibm.com> Cc: Paul E . McKenney <paulmck(a)linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Steven Rostedt <rostedt(a)goodmis.org> Cc: Thomas Gleixner <tglx(a)linutronix.de> Link: http://lkml.kernel.org/r/150845661962.5443.17724352636247312231.stgit@devbox Signed-off-by: Ingo Molnar <mingo(a)kernel.org> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- arch/Kconfig | 2 +- kernel/kprobes.c | 14 ++++++++------ 2 files changed, 9 insertions(+), 7 deletions(-) --- a/arch/Kconfig +++ b/arch/Kconfig @@ -83,7 +83,7 @@ config STATIC_KEYS_SELFTEST config OPTPROBES def_bool y depends on KPROBES && HAVE_OPTPROBES - depends on !PREEMPT + select TASKS_RCU if PREEMPT config KPROBES_ON_FTRACE def_bool y --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -540,13 +540,15 @@ static void kprobe_optimizer(struct work do_unoptimize_kprobes(); /* - * Step 2: Wait for quiesence period to ensure all running interrupts - * are done. Because optprobe may modify multiple instructions - * there is a chance that Nth instruction is interrupted. In that - * case, running interrupt can return to 2nd-Nth byte of jump - * instruction. This wait is for avoiding it. + * Step 2: Wait for quiesence period to ensure all potentially + * preempted tasks to have normally scheduled. Because optprobe + * may modify multiple instructions, there is a chance that Nth + * instruction is preempted. In that case, such tasks can return + * to 2nd-Nth byte of jump instruction. This wait is for avoiding it. + * Note that on non-preemptive kernel, this is transparently converted + * to synchronoze_sched() to wait for all interrupts to have completed. */ - synchronize_sched(); + synchronize_rcu_tasks(); /* Step 3: Optimize kprobes after quiesence period */ do_optimize_kprobes(); Patches currently in stable-queue which might be from mhiramat(a)kernel.org are queue-4.9/kprobes-use-synchronize_rcu_tasks-for-optprobe-with-config_preempt-y.patch queue-4.9/kprobes-x86-disable-preemption-in-ftrace-based-jprobes.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "ima: fix hash algorithm initialization" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled ima: fix hash algorithm initialization to the 4.9-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: ima-fix-hash-algorithm-initialization.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Boshi Wang <wangboshi(a)huawei.com> Date: Fri, 20 Oct 2017 16:01:03 +0800 Subject: ima: fix hash algorithm initialization From: Boshi Wang <wangboshi(a)huawei.com> [ Upstream commit ebe7c0a7be92bbd34c6ff5b55810546a0ee05bee ] The hash_setup function always sets the hash_setup_done flag, even when the hash algorithm is invalid. This prevents the default hash algorithm defined as CONFIG_IMA_DEFAULT_HASH from being used. This patch sets hash_setup_done flag only for valid hash algorithms. Fixes: e7a2ad7eb6f4 "ima: enable support for larger default filedata hash algorithms" Signed-off-by: Boshi Wang <wangboshi(a)huawei.com> Signed-off-by: Mimi Zohar <zohar(a)linux.vnet.ibm.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- security/integrity/ima/ima_main.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -51,6 +51,8 @@ static int __init hash_setup(char *str) ima_hash_algo = HASH_ALGO_SHA1; else if (strncmp(str, "md5", 3) == 0) ima_hash_algo = HASH_ALGO_MD5; + else + return 1; goto out; } @@ -60,6 +62,8 @@ static int __init hash_setup(char *str) break; } } + if (i == HASH_ALGO__LAST) + return 1; out: hash_setup_done = 1; return 1; Patches currently in stable-queue which might be from wangboshi(a)huawei.com are queue-4.9/ima-fix-hash-algorithm-initialization.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "iio: adc: ti-ads1015: add 10% to conversion wait time" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: ti-ads1015: add 10% to conversion wait time to the 4.9-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: iio-adc-ti-ads1015-add-10-to-conversion-wait-time.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Ladislav Michl <ladis(a)linux-mips.org> Date: Fri, 25 Aug 2017 07:39:16 +0200 Subject: iio: adc: ti-ads1015: add 10% to conversion wait time From: Ladislav Michl <ladis(a)linux-mips.org> [ Upstream commit fe895ac88b9fbdf2026f0bfd56c82747bb9d7c48 ] As user's guide "ADS1015EVM, ADS1115EVM, ADS1015EVM-PDK, ADS1115EVM-PDK User Guide (Rev. B)" (http://www.ti.com/lit/ug/sbau157b/sbau157b.pdf) states at page 16: "Note that both the ADS1115 and ADS1015 have internal clocks with a ±10% accuracy. If performing FFT tests, frequencies may appear to be incorrect as a result of this tolerance range.", add those 10% to converion wait time. Cc: Daniel Baluta <daniel.baluta(a)gmail.com> Cc: Jonathan Cameron <jic23(a)kernel.org> Signed-off-by: Ladislav Michl <ladis(a)linux-mips.org> Reviewed-by: Akinobu Mita <akinobu.mita(a)gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/iio/adc/ti-ads1015.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/iio/adc/ti-ads1015.c +++ b/drivers/iio/adc/ti-ads1015.c @@ -269,6 +269,7 @@ int ads1015_get_adc_result(struct ads101 conv_time = DIV_ROUND_UP(USEC_PER_SEC, data->data_rate[dr_old]); conv_time += DIV_ROUND_UP(USEC_PER_SEC, data->data_rate[dr]); + conv_time += conv_time / 10; /* 10% internal clock inaccuracy */ usleep_range(conv_time, conv_time + 1); data->conv_invalid = false; } Patches currently in stable-queue which might be from ladis(a)linux-mips.org are queue-4.9/iio-adc-ti-ads1015-add-10-to-conversion-wait-time.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "i2c: i2c-cadence: Initialize configuration before probing devices" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled i2c: i2c-cadence: Initialize configuration before probing devices to the 4.9-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: i2c-i2c-cadence-initialize-configuration-before-probing-devices.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Mike Looijmans <mike.looijmans(a)topic.nl> Date: Mon, 16 Jan 2017 15:49:38 +0100 Subject: i2c: i2c-cadence: Initialize configuration before probing devices From: Mike Looijmans <mike.looijmans(a)topic.nl> [ Upstream commit 0e1929dedea36781e25902118c93edd8d8f09af1 ] The cadence I2C driver calls cdns_i2c_writereg(..) to setup a workaround in the controller, but did so after calling i2c_add_adapter() which starts probing devices on the bus. Change the order so that the configuration is completely finished before using the adapter. Signed-off-by: Mike Looijmans <mike.looijmans(a)topic.nl> Signed-off-by: Wolfram Sang <wsa(a)the-dreams.de> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/i2c/busses/i2c-cadence.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- a/drivers/i2c/busses/i2c-cadence.c +++ b/drivers/i2c/busses/i2c-cadence.c @@ -962,10 +962,6 @@ static int cdns_i2c_probe(struct platfor goto err_clk_dis; } - ret = i2c_add_adapter(&id->adap); - if (ret < 0) - goto err_clk_dis; - /* * Cadence I2C controller has a bug wherein it generates * invalid read transaction after HW timeout in master receiver mode. @@ -975,6 +971,10 @@ static int cdns_i2c_probe(struct platfor */ cdns_i2c_writereg(CDNS_I2C_TIMEOUT_MAX, CDNS_I2C_TIME_OUT_OFFSET); + ret = i2c_add_adapter(&id->adap); + if (ret < 0) + goto err_clk_dis; + dev_info(&pdev->dev, "%u kHz mmio %08lx irq %d\n", id->i2c_clk / 1000, (unsigned long)r_mem->start, id->irq); Patches currently in stable-queue which might be from mike.looijmans(a)topic.nl are queue-4.9/i2c-i2c-cadence-initialize-configuration-before-probing-devices.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "gtp: fix cross netns recv on gtp socket" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled gtp: fix cross netns recv on gtp socket to the 4.9-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: gtp-fix-cross-netns-recv-on-gtp-socket.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Andreas Schultz <aschultz(a)tpip.net> Date: Fri, 27 Jan 2017 10:40:58 +0100 Subject: gtp: fix cross netns recv on gtp socket From: Andreas Schultz <aschultz(a)tpip.net> [ Upstream commit 3ab1b469e847ba425af3c5ad5068cc94b55b38d0 ] The use of the passed through netlink src_net to check for a cross netns operation was wrong. Using the GTP socket and the GTP netdevice is always correct (even if the netdev has been moved to new netns after link creation). Remove the now obsolete net field from gtp_dev. Signed-off-by: Andreas Schultz <aschultz(a)tpip.net> Acked-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/net/gtp.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -69,7 +69,6 @@ struct gtp_dev { struct socket *sock0; struct socket *sock1u; - struct net *net; struct net_device *dev; unsigned int hash_size; @@ -316,7 +315,7 @@ static int gtp_encap_recv(struct sock *s netdev_dbg(gtp->dev, "encap_recv sk=%p\n", sk); - xnet = !net_eq(gtp->net, dev_net(gtp->dev)); + xnet = !net_eq(sock_net(sk), dev_net(gtp->dev)); switch (udp_sk(sk)->encap_type) { case UDP_ENCAP_GTP0: @@ -658,7 +657,7 @@ static void gtp_link_setup(struct net_de static int gtp_hashtable_new(struct gtp_dev *gtp, int hsize); static void gtp_hashtable_free(struct gtp_dev *gtp); static int gtp_encap_enable(struct net_device *dev, struct gtp_dev *gtp, - int fd_gtp0, int fd_gtp1, struct net *src_net); + int fd_gtp0, int fd_gtp1); static int gtp_newlink(struct net *src_net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[]) @@ -675,7 +674,7 @@ static int gtp_newlink(struct net *src_n fd0 = nla_get_u32(data[IFLA_GTP_FD0]); fd1 = nla_get_u32(data[IFLA_GTP_FD1]); - err = gtp_encap_enable(dev, gtp, fd0, fd1, src_net); + err = gtp_encap_enable(dev, gtp, fd0, fd1); if (err < 0) goto out_err; @@ -821,7 +820,7 @@ static void gtp_hashtable_free(struct gt } static int gtp_encap_enable(struct net_device *dev, struct gtp_dev *gtp, - int fd_gtp0, int fd_gtp1, struct net *src_net) + int fd_gtp0, int fd_gtp1) { struct udp_tunnel_sock_cfg tuncfg = {NULL}; struct socket *sock0, *sock1u; @@ -858,7 +857,6 @@ static int gtp_encap_enable(struct net_d gtp->sock0 = sock0; gtp->sock1u = sock1u; - gtp->net = src_net; tuncfg.sk_user_data = gtp; tuncfg.encap_rcv = gtp_encap_recv; Patches currently in stable-queue which might be from aschultz(a)tpip.net are queue-4.9/gtp-clear-df-bit-on-gtp-packet-tx.patch queue-4.9/gtp-fix-cross-netns-recv-on-gtp-socket.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "gtp: clear DF bit on GTP packet tx" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled gtp: clear DF bit on GTP packet tx to the 4.9-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: gtp-clear-df-bit-on-gtp-packet-tx.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Andreas Schultz <aschultz(a)tpip.net> Date: Fri, 27 Jan 2017 10:40:57 +0100 Subject: gtp: clear DF bit on GTP packet tx From: Andreas Schultz <aschultz(a)tpip.net> [ Upstream commit c6ce1d08eede4c2968ed08aafa3165e8e183c5a1 ] 3GPP TS 29.281 and 3GPP TS 29.060 imply that GTP-U packets should be sent with the DF bit cleared. For example 3GPP TS 29.060, Release 8, Section 13.2.2: > Backbone router: Any router in the backbone may fragment the GTP > packet if needed, according to IPv4. Signed-off-by: Andreas Schultz <aschultz(a)tpip.net> Acked-by: Harald Welte <laforge(a)netfilter.org> Acked-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/net/gtp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/gtp.c +++ b/drivers/net/gtp.c @@ -612,7 +612,7 @@ static netdev_tx_t gtp_dev_xmit(struct s pktinfo.fl4.saddr, pktinfo.fl4.daddr, pktinfo.iph->tos, ip4_dst_hoplimit(&pktinfo.rt->dst), - htons(IP_DF), + 0, pktinfo.gtph_port, pktinfo.gtph_port, true, false); break; Patches currently in stable-queue which might be from aschultz(a)tpip.net are queue-4.9/gtp-clear-df-bit-on-gtp-packet-tx.patch queue-4.9/gtp-fix-cross-netns-recv-on-gtp-socket.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "EDAC, sb_edac: Fix missing break in switch" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled EDAC, sb_edac: Fix missing break in switch to the 4.9-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: edac-sb_edac-fix-missing-break-in-switch.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: "Gustavo A. R. Silva" <garsilva(a)embeddedor.com> Date: Mon, 16 Oct 2017 12:40:29 -0500 Subject: EDAC, sb_edac: Fix missing break in switch From: "Gustavo A. R. Silva" <garsilva(a)embeddedor.com> [ Upstream commit a8e9b186f153a44690ad0363a56716e7077ad28c ] Add missing break statement in order to prevent the code from falling through. Signed-off-by: Gustavo A. R. Silva <garsilva(a)embeddedor.com> Cc: Qiuxu Zhuo <qiuxu.zhuo(a)intel.com> Cc: linux-edac <linux-edac(a)vger.kernel.org> Link: http://lkml.kernel.org/r/20171016174029.GA19757@embeddedor.com Signed-off-by: Borislav Petkov <bp(a)suse.de> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/edac/sb_edac.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -2510,6 +2510,7 @@ static int ibridge_mci_bind_devs(struct break; case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA: pvt->pci_ta = pdev; + break; case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS: pvt->pci_ras = pdev; break; Patches currently in stable-queue which might be from garsilva(a)embeddedor.com are queue-4.9/edac-sb_edac-fix-missing-break-in-switch.patch

7 years, 7 months

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[Linux-stable-mirror] Patch "drm/exynos/decon5433: update shadow registers iff there are active windows" has been added to the 4.9-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled drm/exynos/decon5433: update shadow registers iff there are active windows to the 4.9-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: drm-exynos-decon5433-update-shadow-registers-iff-there-are-active-windows.patch and it can be found in the queue-4.9 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 foo@baz Wed Dec 6 17:39:55 CET 2017 From: Andrzej Hajda <a.hajda(a)samsung.com> Date: Mon, 9 Jan 2017 15:33:02 +0100 Subject: drm/exynos/decon5433: update shadow registers iff there are active windows From: Andrzej Hajda <a.hajda(a)samsung.com> [ Upstream commit f65a7c9cb3770ed4d3e7c57c66d7032689081b5e ] Improper usage of DECON_UPDATE register leads to subtle errors. If it set in decon_commit when there are no active windows it results in slow registry updates - all subsequent shadow registry updates takes more than full vblank. On the other side if it is not set when there are active windows it results in garbage on the screen after suspend/resume of FB console. The patch hopefully fixes it. Signed-off-by: Andrzej Hajda <a.hajda(a)samsung.com> Signed-off-by: Inki Dae <inki.dae(a)samsung.com> Signed-off-by: Sasha Levin <alexander.levin(a)verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c @@ -188,8 +188,6 @@ static void decon_commit(struct exynos_d /* enable output and display signal */ decon_set_bits(ctx, DECON_VIDCON0, VIDCON0_ENVID | VIDCON0_ENVID_F, ~0); - - decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0); } static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win, @@ -340,8 +338,9 @@ static void decon_atomic_flush(struct ex for (i = ctx->first_win; i < WINDOWS_NR; i++) decon_shadow_protect_win(ctx, i, false); - /* standalone update */ - decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0); + /* update iff there are active windows */ + if (crtc->base.state->plane_mask) + decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0); if (ctx->out_type & IFTYPE_I80) set_bit(BIT_WIN_UPDATED, &ctx->flags); Patches currently in stable-queue which might be from a.hajda(a)samsung.com are queue-4.9/drm-exynos-decon5433-set-standalone_update_f-also-if-planes-are-disabled.patch queue-4.9/drm-exynos-decon5433-update-shadow-registers-iff-there-are-active-windows.patch queue-4.9/drm-exynos-decon5433-set-standalone_update_f-on-output-enablement.patch

7 years, 7 months

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