BMC/Intel-BMC/linux.git/arch/x86/kernel/msr.c, branch dev-5.2

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 142

2019-05-30T18:25:17+00:00

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 inc 675 mass ave cambridge ma 02139 usa either version 2 of the license or at your option any later version incorporated herein by reference extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 4 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190524100844.465381181@linutronix.de Signed-off-by: Greg Kroah-Hartman

x86: Clean up 'sizeof x' => 'sizeof(x)'

2018-10-29T06:13:28+00:00

"sizeof(x)" is the canonical coding style used in arch/x86 most of the time. Fix the few places that didn't follow the convention. (Also do some whitespace cleanups in a few places while at it.) [ mingo: Rewrote the changelog. ] Signed-off-by: Jordan Borgner Cc: Borislav Petkov Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20181028125828.7rgammkgzep2wpam@JordanDesktop Signed-off-by: Ingo Molnar

x86/msr: Remove bogus cleanup from the error path

2016-12-25T09:47:41+00:00

The error cleanup which is invoked when the hotplug state setup failed tries to remove the failed state, which is broken. Fixes: 8fba38c937cd ("x86/msr: Convert to hotplug state machine") Reported-by: kernel test robot Signed-off-by: Thomas Gleixner Cc: Sebastian Siewior

x86/msr: Convert to hotplug state machine

2016-11-22T22:34:39+00:00

Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Move the callbacks to online/offline as there is no point in having the files around before the cpu is online and until its completely gone. [ tglx: Move the callbacks to online/offline ] Signed-off-by: Sebastian Andrzej Siewior Cc: rt@linuxtronix.de Link: http://lkml.kernel.org/r/20161117183541.8588-4-bigeasy@linutronix.de Signed-off-by: Thomas Gleixner

x86/cpufeature: Carve out X86_FEATURE_*

2016-01-30T10:22:17+00:00

Move them to a separate header and have the following dependency: x86/cpufeatures.h <- x86/processor.h <- x86/cpufeature.h This makes it easier to use the header in asm code and not include the whole cpufeature.h and add guards for asm. Suggested-by: H. Peter Anvin Signed-off-by: Borislav Petkov Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1453842730-28463-5-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar

new helpers: no_seek_end_llseek{,_size}()

2015-12-23T15:41:31+00:00

Signed-off-by: Al Viro

x86, msr: Use seek definitions instead of hard-coded values

2014-10-17T20:40:55+00:00

Replace 0/1 by SEEK_SET/SEEK_CUR. Signed-off-by: Fabian Frederick Link: http://lkml.kernel.org/r/1413576120-27147-1-git-send-email-fabf@skynet.be Signed-off-by: H. Peter Anvin

x86, msr: Convert printk to pr_foo()

2014-10-17T20:40:54+00:00

Also define pr_fmt. Signed-off-by: Fabian Frederick Link: http://lkml.kernel.org/r/1413576110-27103-1-git-send-email-fabf@skynet.be Signed-off-by: H. Peter Anvin

x86, msr: Use PTR_ERR_OR_ZERO

2014-10-17T20:40:53+00:00

Replace IS_ERR/PTR_ERR Signed-off-by: Fabian Frederick Link: http://lkml.kernel.org/r/1413576099-27059-1-git-send-email-fabf@skynet.be Signed-off-by: H. Peter Anvin

x86, msr: Fix CPU hotplug callback registration

2014-03-20T12:43:42+00:00

Subsystems that want to register CPU hotplug callbacks, as well as perform initialization for the CPUs that are already online, often do it as shown below: get_online_cpus(); for_each_online_cpu(cpu) init_cpu(cpu); register_cpu_notifier(&foobar_cpu_notifier); put_online_cpus(); This is wrong, since it is prone to ABBA deadlocks involving the cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently with CPU hotplug operations). Instead, the correct and race-free way of performing the callback registration is: cpu_notifier_register_begin(); for_each_online_cpu(cpu) init_cpu(cpu); /* Note the use of the double underscored version of the API */ __register_cpu_notifier(&foobar_cpu_notifier); cpu_notifier_register_done(); Fix the msr code in x86 by using this latter form of callback registration. Cc: "H. Peter Anvin" Cc: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Srivatsa S. Bhat Signed-off-by: Rafael J. Wysocki