linaro-kernel March 2016

linaro-kernel@lists.linaro.org

30 participants
150 discussions

[PATCH 0/3] cpufreq: dt: Create platform device from generic code

by Viresh Kumar

Multiple platforms are using the generic cpufreq-dt driver now, and all of them are required to create a platform device with name "cpufreq-dt", in order to get the cpufreq-dt probed. Many of them do it from platform code, others have special drivers just to do that. It would be more sensible to do this at a generic place, where all such platform can mark their entries. The first patch fixes an issue that becomes visible only after the second patch is applied. The second one creates a new driver to create platform-device based on current platform and the last one converts exynos platform to use this common infrastructure. I will migrate rest of the platforms after this is accepted as the right way ahead. @Arnd: Does this look sane? We can fix the arm64 (no platform code) issue with this now. Viresh Kumar (3): cpufreq: dt: Include types.h from cpufreq-dt.h cpufreq: dt: Add generic platform-device creation support cpufreq: exynos: Use generic platdev driver arch/arm/mach-exynos/exynos.c | 25 ----------------- drivers/cpufreq/Kconfig | 11 ++++++++ drivers/cpufreq/Makefile | 1 + drivers/cpufreq/cpufreq-dt-platdev.c | 53 ++++++++++++++++++++++++++++++++++++ include/linux/cpufreq-dt.h | 2 ++ 5 files changed, 67 insertions(+), 25 deletions(-) create mode 100644 drivers/cpufreq/cpufreq-dt-platdev.c -- 2.7.1.410.g6faf27b

8 years, 1 month

Re: Re: [RFC v2] arm64: kgdb: fix single stepping

by Gonghuan

Hi Will I have used Takahiro's patch to fix the single stepping problem of KGDB on arm64. We had real hardware called Hi1610. The problem I had is exactly the same as the description of Takahiro. We are working on kernel4.1. But It seems that the single stepping with kgdb doesn’t work correctly, 'stepi' moves forward and stops at the next instruction just after enable_dbg in el1_dbg, and never goes beyond that. I want to know if anyone fix the issues already ? The patch is like follows: >> Signed-off-by: AKASHI Takahiro <takahiro.akashi at linaro.org<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>> >> --- >> arch/arm64/kernel/kgdb.c | 60 >> +++++++++++++++++++++++++++++++++++----------- >> 1 file changed, 46 insertions(+), 14 deletions(-) >> >> diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgdb.c >> index a0d10c5..81b5910 100644 >> --- a/arch/arm64/kernel/kgdb.c >> +++ b/arch/arm64/kernel/kgdb.c >> @@ -19,9 +19,13 @@ >> * along with this program. If not, see >> <http://www.gnu.org/licenses/>. >> */ >> >> +#include <linux/cpumask.h> >> #include <linux/irq.h> >> +#include <linux/irq_work.h> >> #include <linux/kdebug.h> >> #include <linux/kgdb.h> >> +#include <linux/percpu.h> >> +#include <asm/ptrace.h> >> #include <asm/traps.h> >> >> struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = { >> @@ -95,6 +99,9 @@ struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = { >> { "fpcr", 4, -1 }, >> }; >> >> +static DEFINE_PER_CPU(unsigned int, kgdb_pstate); >> +static DEFINE_PER_CPU(struct irq_work, kgdb_irq_work); >> + >> char *dbg_get_reg(int regno, void *mem, struct pt_regs *regs) >> { >> if (regno >= DBG_MAX_REG_NUM || regno < 0) >> @@ -176,18 +183,14 @@ int kgdb_arch_handle_exception(int >> exception_vector, int signo, >> * over and over again. >> */ >> kgdb_arch_update_addr(linux_regs, remcom_in_buffer); >> - atomic_set(&kgdb_cpu_doing_single_step, -1); >> - kgdb_single_step = 0; >> - >> - /* >> - * Received continue command, disable single step >> - */ >> - if (kernel_active_single_step()) >> - kernel_disable_single_step(); >> >> err = 0; >> break; >> case 's': >> + /* mask interrupts while single stepping */ >> + __this_cpu_write(kgdb_pstate, linux_regs->pstate); >> + linux_regs->pstate |= PSR_I_BIT; >> + >> /* >> * Update step address value with address passed >> * with step packet. >> @@ -198,8 +201,6 @@ int kgdb_arch_handle_exception(int >> exception_vector, int signo, >> */ >> kgdb_arch_update_addr(linux_regs, remcom_in_buffer); >> atomic_set(&kgdb_cpu_doing_single_step, >> raw_smp_processor_id()); >> - kgdb_single_step = 1; >> - >> /* >> * Enable single step handling >> */ >> @@ -229,6 +230,18 @@ static int kgdb_compiled_brk_fn(struct pt_regs >> *regs, unsigned int esr) >> >> static int kgdb_step_brk_fn(struct pt_regs *regs, unsigned int esr) >> { >> + unsigned int pstate; >> + >> + kernel_disable_single_step(); >> + atomic_set(&kgdb_cpu_doing_single_step, -1); >> + >> + /* restore interrupt mask status */ >> + pstate = __this_cpu_read(kgdb_pstate); >> + if (pstate & PSR_I_BIT) >> + regs->pstate |= PSR_I_BIT; >> + else >> + regs->pstate &= ~PSR_I_BIT; >> + >> kgdb_handle_exception(1, SIGTRAP, 0, regs); >> return 0; >> } >> @@ -249,16 +262,27 @@ static struct step_hook kgdb_step_hook = { >> .fn = kgdb_step_brk_fn >> }; >> >> -static void kgdb_call_nmi_hook(void *ignored) >> +static void kgdb_roundup_hook(struct irq_work *work) >> { >> kgdb_nmicallback(raw_smp_processor_id(), get_irq_regs()); >> } >> >> void kgdb_roundup_cpus(unsigned long flags) >> { >> - local_irq_enable(); >> - smp_call_function(kgdb_call_nmi_hook, NULL, 0); >> - local_irq_disable(); >> + int cpu; >> + struct cpumask mask; >> + struct irq_work *work; >> + >> + mask = *cpu_online_mask; >> + cpumask_clear_cpu(smp_processor_id(), &mask); >> + cpu = cpumask_first(&mask); >> + if (cpu >= nr_cpu_ids) >> + return; >> + >> + for_each_cpu(cpu, &mask) { >> + work = per_cpu_ptr(&kgdb_irq_work, cpu); >> + irq_work_queue_on(work, cpu); >> + } >> } >> >> static int __kgdb_notify(struct die_args *args, unsigned long cmd) >> @@ -299,6 +323,8 @@ static struct notifier_block kgdb_notifier = { >> int kgdb_arch_init(void) >> { >> int ret = register_die_notifier(&kgdb_notifier); >> + int cpu; >> + struct irq_work *work; >> >> if (ret != 0) >> return ret; >> @@ -306,6 +332,12 @@ int kgdb_arch_init(void) >> register_break_hook(&kgdb_brkpt_hook); >> register_break_hook(&kgdb_compiled_brkpt_hook); >> register_step_hook(&kgdb_step_hook); >> + >> + for_each_possible_cpu(cpu) { >> + work = per_cpu_ptr(&kgdb_irq_work, cpu); >> + init_irq_work(work, kgdb_roundup_hook); >> + } >> + >> return 0; >> } [说明: cid:image001.jpg@01D0F098.2F20FA50] Gong Huan 00194563 2012 Lab-Euler Dept 6 （Programming Technologies Lab） Mobile：15372050534 Tel.：057163165 Seat No.：Hangzhou Research Center Z9-3-B01 Our hi3 group：http://3ms.huawei.com/hi/group/1502151

8 years, 1 month

next-20160329 build: 0 failures 7 warnings (next-20160329)

by Build bot for Mark Brown

Tree/Branch: next-20160329 Git describe: next-20160329 Commit: 682b9318d4 Add linux-next specific files for 20160329 Build Time: 85 min 46 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 7 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allnoconfig 6 warnings 0 mismatches : arm64-allmodconfig 4 warnings 0 mismatches : arm-multi_v5_defconfig 4 warnings 0 mismatches : arm-multi_v7_defconfig 8 warnings 0 mismatches : arm-allmodconfig 2 warnings 0 mismatches : arm-allnoconfig 5 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 7 12 <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] 12 <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] 2 ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 2 ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1 arch/arm64/configs/defconfig:218:warning: override: reassigning to symbol MMC_BLOCK_MINORS 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v5_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 8 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: arch/arm64/configs/defconfig:218:warning: override: reassigning to symbol MMC_BLOCK_MINORS <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig x86_64-defconfig

8 years, 1 month

master build: 0 failures 9 warnings (v4.6-rc1-11-g1993b17)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.6-rc1-11-g1993b17 Commit: 1993b176a8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide Build Time: 87 min 19 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 9 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allnoconfig 8 warnings 0 mismatches : arm64-allmodconfig 4 warnings 0 mismatches : arm-multi_v5_defconfig 5 warnings 0 mismatches : arm-multi_v7_defconfig 10 warnings 0 mismatches : arm-allmodconfig 2 warnings 0 mismatches : arm-allnoconfig 5 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 9 12 <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] 12 <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] 3 ../drivers/media/v4l2-core/v4l2-mc.c:37:55: warning: unused variable 'dtv_demod' [-Wunused-variable] 2 ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 2 ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 2 ../drivers/platform/goldfish/goldfish_pipe.c:312:3: warning: 'get_user_pages8' is deprecated [-Wdeprecated-declarations] 1 arch/arm64/configs/defconfig:218:warning: override: reassigning to symbol MMC_BLOCK_MINORS 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 8 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../drivers/media/v4l2-core/v4l2-mc.c:37:55: warning: unused variable 'dtv_demod' [-Wunused-variable] ../drivers/platform/goldfish/goldfish_pipe.c:312:3: warning: 'get_user_pages8' is deprecated [-Wdeprecated-declarations] ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v5_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../drivers/media/v4l2-core/v4l2-mc.c:37:55: warning: unused variable 'dtv_demod' [-Wunused-variable] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 10 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/platform/goldfish/goldfish_pipe.c:312:3: warning: 'get_user_pages8' is deprecated [-Wdeprecated-declarations] ../drivers/media/v4l2-core/v4l2-mc.c:37:55: warning: unused variable 'dtv_demod' [-Wunused-variable] ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: arch/arm64/configs/defconfig:218:warning: override: reassigning to symbol MMC_BLOCK_MINORS <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig x86_64-defconfig

8 years, 1 month

Hibernation (suspend to disk) on ARM

by Shyamjith K V

Hi There, I am working to implement hibernation (Suspend to disk) on ARM and have successfully done that by using swsusp ARM patch by Sebastian Capella <https://lists.linaro.org/pipermail/linaro-kernel/2014-March/012112.html>. Now I can hibernate (suspend to swap partition in *sd* card) the kernel using the command echo disk > /sys/power/state and the system will resume its state with the next power on. But if I press reset again the kernel follow a normal boot sequence. My question is how can I make that swap area and hibernate image in that area permanent, so that in every reset it will awake from that permanent image? I have given the value of swapiness=0 so that I expect there wont be any swapping of pages any more while system is alive. How kernel decide whether go for a normal boot or awake from (resume=/dev/swap_partition) hibernation? I searched a lot on internet but didn't get a clear idea about how Linux kernel is awaking from hibernation and what it will do with swap after resuming once.Thank you for your time My kernel version is 3.14 -- Regards, Shyamjith K V

8 years, 1 month

[LSK4.1-android] USB gadget broken

by Leo Yan

Hi all, I found one bug for enabling Hikey's usb gadget driver; this bug only happen when I use linux-linaro-lsk-v4.1-android but linux-linaro-lsk-v4.1 has no such issue. The detailed info for this bug is: When system bootup, I use configfs to enable ethernet on USB, kernel dumps below backtrace. After narrow down this issue, found below patch introduce this issue: commit 3fdf0dcfea876a0d730da5544f947b0a19c37fdc Author: Badhri Jagan Sridharan <Badhri(a)google.com> Date: Wed Sep 24 18:58:23 2014 -0700 usb: u_ether: Add workqueue as bottom half handler for rx data path u_ether driver passes rx data to network layer and resubmits the request back to usb hardware in interrupt context. Network layer processes rx data by scheduling tasklet. For high throughput scenarios on rx data path driver is spending lot of time in interrupt context due to rx data processing by tasklet and continuous completion and re-submission of the usb requests which results in watchdog bark. Hence move the rx data processing and usb request submission to a workqueue bottom half handler. Change-Id: I316de8e267997137ac189a8b7b2846fa325f4a5a Signed-off-by: Badhri Jagan Sridharan <Badhri(a)google.com> I'm not familiar with USB driver, so want to get some suggestion to fix this issue. BTW, I also searched this patch, but this patch have not been really merged into mainline kernel. Thanks, Leo Yan --- Kernel dump log --- Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. [ 11.638907] using random self ethernet address [ 11.643381] using random host ethernet address [ 11.677646] usb0: HOST MAC 0a:70:5f:8a:c1:aa [ 11.682136] usb0: MAC 1e:84:31:c3:50:0f [ 11.689207] dwc2 f72c0000.usb: bound driver configfs-gadget [ 11.701933] dwc2 f72c0000.usb: bound driver configfs-gadget SIOCSIFHWADDR: Device or resource busy - you may need to down the interface root@linaro-developer:~# [ 12.009430] dwc2 f72c0000.usb: new device is high-speed [ 12.094179] dwc2 f72c0000.usb: new device is high-speed [ 12.164194] dwc2 f72c0000.usb: new address 53 [ 12.191379] configfs-gadget gadget: high-speed config #1: c [ 12.256053] ------------[ cut here ]------------ [ 12.260753] WARNING: CPU: 0 PID: 0 at kernel/workqueue.c:1369 __queue_work+0x2dc/0x354() [ 12.268861] Modules linked in: [ 12.271932] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.15+ #86 [ 12.278033] Hardware name: HiKey Development Board (DT) [ 12.283265] Call trace: [ 12.285722] [<ffffffc00008a928>] dump_backtrace+0x0/0x164 [ 12.291131] [<ffffffc00008aaac>] show_stack+0x20/0x28 [ 12.296196] [<ffffffc0006f0b38>] dump_stack+0x84/0xc4 [ 12.301260] [<ffffffc0000bc960>] warn_slowpath_common+0xa8/0xdc [ 12.307192] [<ffffffc0000bcae0>] warn_slowpath_null+0x38/0x44 [ 12.312959] [<ffffffc0000d51d8>] __queue_work+0x2dc/0x354 [ 12.318377] [<ffffffc0000d52d0>] queue_work_on+0x80/0xa4 [ 12.323712] [<ffffffc00057e748>] rx_complete+0xd4/0x1ac [ 12.328958] [<ffffffc00057c110>] usb_gadget_giveback_request+0x2c/0x38 [ 12.335510] [<ffffffc0005516d4>] s3c_hsotg_complete_request+0xdc/0x1ec [ 12.342059] [<ffffffc000553e08>] s3c_hsotg_handle_outdone+0xa4/0x1d0 [ 12.348433] [<ffffffc0005541d0>] s3c_hsotg_epint+0x29c/0x6f4 [ 12.354112] [<ffffffc000554dd8>] s3c_hsotg_irq+0x408/0x734 [ 12.359621] [<ffffffc00010fca4>] handle_irq_event_percpu+0x64/0x210 [ 12.365909] [<ffffffc00010fea4>] handle_irq_event+0x54/0x80 [ 12.371501] [<ffffffc000112f6c>] handle_fasteoi_irq+0xb4/0x178 [ 12.377355] [<ffffffc00010f214>] generic_handle_irq+0x3c/0x54 [ 12.383121] [<ffffffc00010f564>] __handle_domain_irq+0x6c/0xbc [ 12.388972] [<ffffffc000082494>] gic_handle_irq+0x3c/0x88 [ 12.394388] Exception stack(0xffffffc000a83d30 to 0xffffffc000a83e50) [ 12.400850] 3d20: d91bd3d5 00000002 00b0bce0 ffffffc0 [ 12.409063] 3d40: 00a83e70 ffffffc0 005ae31c ffffffc0 00000000 00000000 005ae318 ffffffc0 [ 12.417275] 3d60: 00a80000 ffffffc0 005d8518 ffffffc0 00000020 00000000 004ea4a9 00000000 [ 12.425487] 3d80: 5fe6aba0 00023c34 00000019 00000000 b5193519 00000032 00084800 ffffffc0 [ 12.433697] 3da0: 00000000 00000000 00000000 00000000 34d5d91d 00000000 00000000 00000000 [ 12.441908] 3dc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 12.450120] 3de0: 00000000 00000000 d91bd3d5 00000002 00b0bce0 ffffffc0 3a3bfe00 ffffffc0 [ 12.458332] 3e00: 00000002 00000000 00000001 00000000 00000000 00000000 d8fad491 00000002 [ 12.466544] 3e20: 00a64b50 ffffffc0 00a6a1d8 ffffffc0 007099b0 ffffffc0 00a83e70 ffffffc0 [ 12.474753] 3e40: 005ae318 ffffffc0 00a83e70 ffffffc0 [ 12.479822] [<ffffffc0000855ac>] el1_irq+0x6c/0xe0 [ 12.484634] [<ffffffc0005ae568>] cpuidle_enter+0x30/0x3c [ 12.489967] [<ffffffc0000fff98>] call_cpuidle+0x44/0x78 [ 12.495212] [<ffffffc0001001f8>] cpu_startup_entry+0x22c/0x314 [ 12.501064] [<ffffffc0006ebc44>] rest_init+0x8c/0x94 [ 12.506051] [<ffffffc0009b3980>] start_kernel+0x394/0x3a8 [ 12.511466] ---[ end trace 7240af96fd6fdc18 ]---

8 years, 1 month

[PATCH] cpufreq: acpi: Remove freq_table from acpi_cpufreq_data

by Viresh Kumar

The freq-table is stored in struct cpufreq_policy also and there is absolutely no need of keeping a copy of its reference in struct acpi_cpufreq_data. Drop it. Also policy->freq_table can't be NULL in the target() callback, remove the useless check as well. Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- drivers/cpufreq/acpi-cpufreq.c | 61 +++++++++++++++++++++++------------------- 1 file changed, 33 insertions(+), 28 deletions(-) diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index fb5712141040..eb2196f9d7fa 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -65,7 +65,6 @@ enum { #define MSR_K7_HWCR_CPB_DIS (1ULL << 25) struct acpi_cpufreq_data { - struct cpufreq_frequency_table *freq_table; unsigned int resume; unsigned int cpu_feature; unsigned int acpi_perf_cpu; @@ -200,8 +199,9 @@ static int check_amd_hwpstate_cpu(unsigned int cpuid) return cpu_has(cpu, X86_FEATURE_HW_PSTATE); } -static unsigned extract_io(u32 value, struct acpi_cpufreq_data *data) +static unsigned extract_io(struct cpufreq_policy *policy, u32 value) { + struct acpi_cpufreq_data *data = policy->driver_data; struct acpi_processor_performance *perf; int i; @@ -209,13 +209,14 @@ static unsigned extract_io(u32 value, struct acpi_cpufreq_data *data) for (i = 0; i < perf->state_count; i++) { if (value == perf->states[i].status) - return data->freq_table[i].frequency; + return policy->freq_table[i].frequency; } return 0; } -static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data) +static unsigned extract_msr(struct cpufreq_policy *policy, u32 msr) { + struct acpi_cpufreq_data *data = policy->driver_data; struct cpufreq_frequency_table *pos; struct acpi_processor_performance *perf; @@ -226,20 +227,22 @@ static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data) perf = to_perf_data(data); - cpufreq_for_each_entry(pos, data->freq_table) + cpufreq_for_each_entry(pos, policy->freq_table) if (msr == perf->states[pos->driver_data].status) return pos->frequency; - return data->freq_table[0].frequency; + return policy->freq_table[0].frequency; } -static unsigned extract_freq(u32 val, struct acpi_cpufreq_data *data) +static unsigned extract_freq(struct cpufreq_policy *policy, u32 val) { + struct acpi_cpufreq_data *data = policy->driver_data; + switch (data->cpu_feature) { case SYSTEM_INTEL_MSR_CAPABLE: case SYSTEM_AMD_MSR_CAPABLE: - return extract_msr(val, data); + return extract_msr(policy, val); case SYSTEM_IO_CAPABLE: - return extract_io(val, data); + return extract_io(policy, val); default: return 0; } @@ -374,11 +377,11 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu) return 0; data = policy->driver_data; - if (unlikely(!data || !data->freq_table)) + if (unlikely(!data || !policy->freq_table)) return 0; - cached_freq = data->freq_table[to_perf_data(data)->state].frequency; - freq = extract_freq(get_cur_val(cpumask_of(cpu), data), data); + cached_freq = policy->freq_table[to_perf_data(data)->state].frequency; + freq = extract_freq(policy, get_cur_val(cpumask_of(cpu), data)); if (freq != cached_freq) { /* * The dreaded BIOS frequency change behind our back. @@ -392,14 +395,15 @@ static unsigned int get_cur_freq_on_cpu(unsigned int cpu) return freq; } -static unsigned int check_freqs(const struct cpumask *mask, unsigned int freq, - struct acpi_cpufreq_data *data) +static unsigned int check_freqs(struct cpufreq_policy *policy, + const struct cpumask *mask, unsigned int freq) { + struct acpi_cpufreq_data *data = policy->driver_data; unsigned int cur_freq; unsigned int i; for (i = 0; i < 100; i++) { - cur_freq = extract_freq(get_cur_val(mask, data), data); + cur_freq = extract_freq(policy, get_cur_val(mask, data)); if (cur_freq == freq) return 1; udelay(10); @@ -416,12 +420,12 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, unsigned int next_perf_state = 0; /* Index into perf table */ int result = 0; - if (unlikely(data == NULL || data->freq_table == NULL)) { + if (unlikely(!data)) { return -ENODEV; } perf = to_perf_data(data); - next_perf_state = data->freq_table[index].driver_data; + next_perf_state = policy->freq_table[index].driver_data; if (perf->state == next_perf_state) { if (unlikely(data->resume)) { pr_debug("Called after resume, resetting to P%d\n", @@ -444,8 +448,8 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy, drv_write(data, mask, perf->states[next_perf_state].control); if (acpi_pstate_strict) { - if (!check_freqs(mask, data->freq_table[index].frequency, - data)) { + if (!check_freqs(policy, mask, + policy->freq_table[index].frequency)) { pr_debug("acpi_cpufreq_target failed (%d)\n", policy->cpu); result = -EAGAIN; @@ -631,6 +635,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) unsigned int result = 0; struct cpuinfo_x86 *c = &cpu_data(policy->cpu); struct acpi_processor_performance *perf; + struct cpufreq_frequency_table *freq_table; #ifdef CONFIG_SMP static int blacklisted; #endif @@ -742,9 +747,9 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) goto err_unreg; } - data->freq_table = kzalloc(sizeof(*data->freq_table) * + freq_table = kzalloc(sizeof(*freq_table) * (perf->state_count+1), GFP_KERNEL); - if (!data->freq_table) { + if (!freq_table) { result = -ENOMEM; goto err_unreg; } @@ -769,18 +774,18 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) /* table init */ for (i = 0; i < perf->state_count; i++) { if (i > 0 && perf->states[i].core_frequency >= - data->freq_table[valid_states-1].frequency / 1000) + freq_table[valid_states-1].frequency / 1000) continue; - data->freq_table[valid_states].driver_data = i; - data->freq_table[valid_states].frequency = + freq_table[valid_states].driver_data = i; + freq_table[valid_states].frequency = perf->states[i].core_frequency * 1000; valid_states++; } - data->freq_table[valid_states].frequency = CPUFREQ_TABLE_END; + freq_table[valid_states].frequency = CPUFREQ_TABLE_END; perf->state = 0; - result = cpufreq_table_validate_and_show(policy, data->freq_table); + result = cpufreq_table_validate_and_show(policy, freq_table); if (result) goto err_freqfree; @@ -824,7 +829,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) return result; err_freqfree: - kfree(data->freq_table); + kfree(freq_table); err_unreg: acpi_processor_unregister_performance(cpu); err_free_mask: @@ -846,7 +851,7 @@ static int acpi_cpufreq_cpu_exit(struct cpufreq_policy *policy) policy->driver_data = NULL; acpi_processor_unregister_performance(data->acpi_perf_cpu); free_cpumask_var(data->freqdomain_cpus); - kfree(data->freq_table); + kfree(policy->freq_table); kfree(data); } -- 2.7.1.410.g6faf27b

8 years, 1 month

[PATCH 0/2] arm64: fix CPU suspend hang issue for LSK4.1

by Leo Yan

Hi Alex, Below two patches are important for CPU's suspend/resume flow; These two patches have been merged into mainline kernel already. If without Sudeep's patch, cpu will get wrong context when it returns back and finally introduce system hang issue. So patch 1 is fatal. For Will Deacon's patch, I have not seen obvious issue if without it on Hikey. But for more safe, also ported this patch to fetch correct instructions from PoU but discard potential stale instructions which fetched from PoC. Sudeep Holla (1): arm64: restore cpu suspend/resume functionality Will Deacon (1): arm64: mm: ensure patched kernel text is fetched from PoU arch/arm64/kernel/head.S | 8 ++++++++ arch/arm64/kernel/sleep.S | 9 ++++++++- arch/arm64/mm/proc.S | 1 - 3 files changed, 16 insertions(+), 2 deletions(-) -- 1.9.1

8 years, 1 month

next-20160327 build: 0 failures 7 warnings (next-20160327)

by Build bot for Mark Brown

Tree/Branch: next-20160327 Git describe: next-20160327 Commit: a892f4b320 Add linux-next specific files for 20160327 Build Time: 87 min 22 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 7 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allnoconfig 6 warnings 0 mismatches : arm64-allmodconfig 4 warnings 0 mismatches : arm-multi_v5_defconfig 4 warnings 0 mismatches : arm-multi_v7_defconfig 8 warnings 0 mismatches : arm-allmodconfig 2 warnings 0 mismatches : arm-allnoconfig 5 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 7 12 <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] 12 <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] 2 ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 2 ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1 arch/arm64/configs/defconfig:218:warning: override: reassigning to symbol MMC_BLOCK_MINORS 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v5_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 8 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: arch/arm64/configs/defconfig:218:warning: override: reassigning to symbol MMC_BLOCK_MINORS <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig x86_64-defconfig

8 years, 1 month

v4.6-rc1 build: 0 failures 9 warnings (v4.6-rc1)

by Build bot for Mark Brown

Tree/Branch: v4.6-rc1 Git describe: v4.6-rc1 Commit: f55532a0c0 Linux 4.6-rc1 Build Time: 86 min 12 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 9 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 2 warnings 0 mismatches : arm64-allnoconfig 8 warnings 0 mismatches : arm64-allmodconfig 4 warnings 0 mismatches : arm-multi_v5_defconfig 5 warnings 0 mismatches : arm-multi_v7_defconfig 10 warnings 0 mismatches : arm-allmodconfig 2 warnings 0 mismatches : arm-allnoconfig 5 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 9 12 <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] 12 <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] 3 ../drivers/media/v4l2-core/v4l2-mc.c:37:55: warning: unused variable 'dtv_demod' [-Wunused-variable] 2 ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 2 ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 2 ../drivers/platform/goldfish/goldfish_pipe.c:312:3: warning: 'get_user_pages8' is deprecated [-Wdeprecated-declarations] 1 arch/arm64/configs/defconfig:218:warning: override: reassigning to symbol MMC_BLOCK_MINORS 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 8 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../drivers/platform/goldfish/goldfish_pipe.c:312:3: warning: 'get_user_pages8' is deprecated [-Wdeprecated-declarations] ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/media/v4l2-core/v4l2-mc.c:37:55: warning: unused variable 'dtv_demod' [-Wunused-variable] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v5_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../drivers/media/v4l2-core/v4l2-mc.c:37:55: warning: unused variable 'dtv_demod' [-Wunused-variable] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 10 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1472 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/media/v4l2-core/v4l2-mc.c:37:55: warning: unused variable 'dtv_demod' [-Wunused-variable] ../drivers/platform/goldfish/goldfish_pipe.c:312:3: warning: 'get_user_pages8' is deprecated [-Wdeprecated-declarations] ../drivers/tty/serial/uartlite.c:348:21: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/tty/serial/uartlite.c:354:22: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm-allnoconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 5 warnings, 0 section mismatches Warnings: arch/arm64/configs/defconfig:218:warning: override: reassigning to symbol MMC_BLOCK_MINORS <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] <stdin>:1310:2: warning: #warning syscall preadv2 not implemented [-Wcpp] <stdin>:1313:2: warning: #warning syscall pwritev2 not implemented [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig x86_64-defconfig

8 years, 1 month

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linaro-kernel March 2016