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 of the license 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 you
should have received a copy of the gnu general public license along
with this program if not write to the free software foundation inc
59 temple place suite 330 boston ma 02111 1307 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 1334 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Annotate cpu_wait implementations using the __cpuidle macro which
places these functions in the .cpuidle.text section. This allows
cpu_in_idle() to return true for PC values which fall within these
functions, allowing nmi_backtrace() to produce cleaner output for CPUs
running idle functions. For example:
# echo l >/proc/sysrq-trigger
[ 38.587170] sysrq: SysRq : Show backtrace of all active CPUs
[ 38.593657] NMI backtrace for cpu 1
[ 38.597611] CPU: 1 PID: 161 Comm: sh Not tainted 4.18.0-rc1+ #27
[ 38.604306] Stack : 00000000 00000004 00000006 80486724 00000000 00000000 00000000 00000000
[ 38.613647] 80e17eda 00000034 00000000 00000000 80d20000 80b67e98 8e559c90 0ffe1e88
[ 38.622986] 00000000 00000000 80e70000 00000000 8f61db18 38312e34 722d302e 202b3163
[ 38.632324] 8e559d3c 8e559adc 00000001 6b636162 80d20000 80000000 00000000 80d1cfa4
[ 38.641664] 00000001 80d20000 80d19520 00000000 00000003 80836724 00000004 80e10004
[ 38.650993] ...
[ 38.653724] Call Trace:
[ 38.656499] [<8040cdd0>] show_stack+0xa0/0x144
[ 38.661475] [<80b67e98>] dump_stack+0xe8/0x120
[ 38.666455] [<80b6f6d4>] nmi_cpu_backtrace+0x1b4/0x1cc
[ 38.672189] [<80b6f81c>] nmi_trigger_cpumask_backtrace+0x130/0x1e4
[ 38.679081] [<808295d8>] __handle_sysrq+0xc0/0x180
[ 38.684421] [<80829b84>] write_sysrq_trigger+0x50/0x64
[ 38.690176] [<8061c984>] proc_reg_write+0xd0/0xfc
[ 38.695447] [<805aac1c>] __vfs_write+0x54/0x194
[ 38.700500] [<805aaf24>] vfs_write+0xe0/0x18c
[ 38.705360] [<805ab190>] ksys_write+0x7c/0xf0
[ 38.710238] [<80416018>] syscall_common+0x34/0x58
[ 38.715558] Sending NMI from CPU 1 to CPUs 0,2-3:
[ 38.720916] NMI backtrace for cpu 0 skipped: idling at r4k_wait_irqoff+0x2c/0x34
[ 38.729186] NMI backtrace for cpu 3 skipped: idling at r4k_wait_irqoff+0x2c/0x34
[ 38.737449] NMI backtrace for cpu 2 skipped: idling at r4k_wait_irqoff+0x2c/0x34
Without this we get register value & backtrace output from all CPUs,
which is generally useless for those running the idle function & serves
only to overwhelm & obfuscate the meaningful output from non-idle CPUs.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/19598/
It's probably a good idea to flush caches before reset and by the time
this code was written flush_cache_all did actually still do something.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
