kernel.git/arch/x86/kernel/apm_32.c, branch linux-5.13.y

x86: Fix various typos in comments, take #2

2021-03-21T22:50:28Z

Fix another ~42 single-word typos in arch/x86/ code comments, missed a few in the first pass, in particular in .S files. Signed-off-by: Ingo Molnar Cc: Borislav Petkov Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Paolo Bonzini Cc: Bjorn Helgaas Cc: linux-kernel@vger.kernel.org

x86: Fix various typos in comments

2021-03-18T14:31:53Z

Fix ~144 single-word typos in arch/x86/ code comments. Doing this in a single commit should reduce the churn. Signed-off-by: Ingo Molnar Cc: Borislav Petkov Cc: Thomas Gleixner Cc: Peter Zijlstra Cc: Paolo Bonzini Cc: Bjorn Helgaas Cc: linux-kernel@vger.kernel.org

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118

2019-05-24T15:39:02Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 44 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091651.032047323@linutronix.de Signed-off-by: Greg Kroah-Hartman

x86/APM: Fix build warning when PROC_FS is not enabled

2018-09-15T08:16:25Z

Fix build warning in apm_32.c when CONFIG_PROC_FS is not enabled: ../arch/x86/kernel/apm_32.c:1643:12: warning: 'proc_apm_show' defined but not used [-Wunused-function] static int proc_apm_show(struct seq_file *m, void *v) Fixes: 3f3942aca6da ("proc: introduce proc_create_single{,_data}") Signed-off-by: Randy Dunlap Signed-off-by: Thomas Gleixner Reviewed-by: Christoph Hellwig Cc: Jiri Kosina Link: https://lkml.kernel.org/r/be39ac12-44c2-4715-247f-4dcc3c525b8b@infradead.org

x86/apm: Don't access __preempt_count with zeroed fs

2018-07-16T15:59:57Z

APM_DO_POP_SEGS does not restore fs/gs which were zeroed by APM_DO_ZERO_SEGS. Trying to access __preempt_count with zeroed fs doesn't really work. Move the ibrs call outside the APM_DO_SAVE_SEGS/APM_DO_RESTORE_SEGS invocations so that fs is actually restored before calling preempt_enable(). Fixes the following sort of oopses: [ 0.313581] general protection fault: 0000 [#1] PREEMPT SMP [ 0.313803] Modules linked in: [ 0.314040] CPU: 0 PID: 268 Comm: kapmd Not tainted 4.16.0-rc1-triton-bisect-00090-gdd84441a7971 #19 [ 0.316161] EIP: __apm_bios_call_simple+0xc8/0x170 [ 0.316161] EFLAGS: 00210016 CPU: 0 [ 0.316161] EAX: 00000102 EBX: 00000000 ECX: 00000102 EDX: 00000000 [ 0.316161] ESI: 0000530e EDI: dea95f64 EBP: dea95f18 ESP: dea95ef0 [ 0.316161] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 0.316161] CR0: 80050033 CR2: 00000000 CR3: 015d3000 CR4: 000006d0 [ 0.316161] Call Trace: [ 0.316161] ? cpumask_weight.constprop.15+0x20/0x20 [ 0.316161] on_cpu0+0x44/0x70 [ 0.316161] apm+0x54e/0x720 [ 0.316161] ? __switch_to_asm+0x26/0x40 [ 0.316161] ? __schedule+0x17d/0x590 [ 0.316161] kthread+0xc0/0xf0 [ 0.316161] ? proc_apm_show+0x150/0x150 [ 0.316161] ? kthread_create_worker_on_cpu+0x20/0x20 [ 0.316161] ret_from_fork+0x2e/0x38 [ 0.316161] Code: da 8e c2 8e e2 8e ea 57 55 2e ff 1d e0 bb 5d b1 0f 92 c3 5d 5f 07 1f 89 47 0c 90 8d b4 26 00 00 00 00 90 8d b4 26 00 00 00 00 90 <64> ff 0d 84 16 5c b1 74 7f 8b 45 dc 8e e0 8b 45 d8 8e e8 8b 45 [ 0.316161] EIP: __apm_bios_call_simple+0xc8/0x170 SS:ESP: 0068:dea95ef0 [ 0.316161] ---[ end trace 656253db2deaa12c ]--- Fixes: dd84441a7971 ("x86/speculation: Use IBRS if available before calling into firmware") Signed-off-by: Ville Syrjälä Signed-off-by: Thomas Gleixner Cc: stable@vger.kernel.org Cc: David Woodhouse Cc: "H. Peter Anvin" Cc: x86@kernel.org Cc: David Woodhouse Cc: "H. Peter Anvin" Link: https://lkml.kernel.org/r/20180709133534.5963-1-ville.syrjala@linux.intel.com

Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-06-05T02:17:47Z

Pull x86 cleanups from Ingo Molnar: "Misc cleanups" * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apm: Fix spelling mistake: "caculate" -> "calculate" x86/mtrr: Rename main.c to mtrr.c and remove duplicate prefixes x86: Remove pr_fmt duplicate logging prefixes x86/early-quirks: Rename duplicate define of dev_err x86/bpf: Clean up non-standard comments, to make the code more readable

x86/apm: Fix spelling mistake: "caculate" -> "calculate"

2018-05-19T12:18:59Z

Trivial fix to spelling mistake in module parameter description text Signed-off-by: Colin Ian King Signed-off-by: Thomas Gleixner Cc: Jiri Kosina Cc: kernel-janitors@vger.kernel.org Cc: "H . Peter Anvin" Link: https://lkml.kernel.org/r/20180428092448.6493-1-colin.king@canonical.com

proc: introduce proc_create_single{,_data}

2018-05-16T05:23:35Z

Variants of proc_create{,_data} that directly take a seq_file show callback and drastically reduces the boilerplate code in the callers. All trivial callers converted over. Signed-off-by: Christoph Hellwig

vfs: do bulk POLL* -> EPOLL* replacement

2018-02-11T22:34:03Z

This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^$[^\"]*$$\$/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro Signed-off-by: Linus Torvalds

Merge tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2018-02-09T17:40:33Z

Pull more power management updates from Rafael Wysocki: "These are mostly fixes and cleanups and removal of the no longer needed at32ap-cpufreq driver. Specifics: - Drop the at32ap-cpufreq driver which is useless after the removal of the corresponding arch (Corentin LABBE). - Fix a regression from the 4.14 cycle in the APM idle driver by making it initialize the polling state properly (Rafael Wysocki). - Fix a crash on failing system suspend due to a missing check in the cpufreq core (Bo Yan). - Make the intel_pstate driver initialize the hardware-managed P-state control (HWP) feature on CPU0 upon resume from system suspend if HWP had been enabled before the system was suspended (Chen Yu). - Fix up the SCPI cpufreq driver after recent changes (Sudeep Holla, Wei Yongjun). - Avoid pointer subtractions during frequency table walks in cpufreq (Dominik Brodowski). - Avoid the check for ProcFeedback in ST/CZ in the cpufreq driver for AMD processors and add a MODULE_ALIAS for cpufreq on ARM IMX (Akshu Agrawal, Nicolas Chauvet). - Fix the prototype of swsusp_arch_resume() on x86 (Arnd Bergmann). - Fix up the parsing of power domains DT data (Ulf Hansson)" * tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: arm: imx: Add MODULE_ALIAS for cpufreq cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx() cpufreq: intel_pstate: Enable HWP during system resume on CPU0 cpufreq: scpi: fix error return code in scpi_cpufreq_init() x86: hibernate: fix swsusp_arch_resume() prototype PM / domains: Fix up domain-idle-states OF parsing cpufreq: scpi: fix static checker warning cdev isn't an ERR_PTR cpufreq: remove at32ap-cpufreq cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ x86: PM: Make APM idle driver initialize polling state cpufreq: Skip cpufreq resume if it's not suspended