Josh Poimboeuf 578ae447e7 jump_label: Disable jump labels in __exit code ... With the following commit: 3335224470 ("jump_label: Explicitly disable jump labels in __init code") ... we explicitly disabled jump labels in __init code, so they could be detected and not warned about in the following commit: dc1dd184c2 ("jump_label: Warn on failed jump_label patching attempt") In-kernel __exit code has the same issue. It's never used, so it's freed along with the rest of initmem. But jump label entries in __exit code aren't explicitly disabled, so we get the following warning when enabling pr_debug() in __exit code: can't patch jump_label at dmi_sysfs_exit+0x0/0x2d WARNING: CPU: 0 PID: 22572 at kernel/jump_label.c:376 __jump_label_update+0x9d/0xb0 Fix the warning by disabling all jump labels in initmem (which includes both __init and __exit code). Reported-and-tested-by: Li Wang <liwang@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Borislav Petkov <bp@suse.de> Cc: Jason Baron <jbaron@akamai.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: dc1dd184c2 ("jump_label: Warn on failed jump_label patching attempt") Link: http://lkml.kernel.org/r/7121e6e595374f06616c505b6e690e275c0054d1.1521483452.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2018-03-20 08:57:17 +01:00
..
Kconfig	membarrier: Provide core serializing command, *_SYNC_CORE	2018-02-05 21:35:03 +01:00
Makefile	Construct init thread stack in the linker script rather than by union	2018-01-09 23:21:02 +00:00
calibrate.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
do_mounts.c	kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK	2017-11-15 18:21:04 -08:00
do_mounts.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
do_mounts_initrd.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
do_mounts_md.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
do_mounts_rd.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
init_task.c	Expand the INIT_SIGNALS and INIT_SIGHAND macros and remove	2018-01-17 11:30:16 +00:00
initramfs.c	initramfs: use time64_t timestamps	2017-11-17 16:10:04 -08:00
main.c	jump_label: Disable jump labels in __exit code	2018-03-20 08:57:17 +01:00
noinitramfs.c	init: mark __user address space on string literals	2010-10-26 16:52:15 -07:00
version.c	init/version.c: include <linux/export.h> instead of <linux/module.h>	2017-11-17 16:10:02 -08:00