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Alexander Potapenko be7635e728 arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 
KASAN needs to know whether the allocation happens in an IRQ handler.
This lets us strip everything below the IRQ entry point to reduce the
number of unique stack traces needed to be stored.

Move the definition of __irq_entry to <linux/interrupt.h> so that the
users don't need to pull in <linux/ftrace.h>.  Also introduce the
__softirq_entry macro which is similar to __irq_entry, but puts the
corresponding functions to the .softirqentry.text section.

Signed-off-by: Alexander Potapenko <glider@google.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrey Konovalov <adech.fo@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Konstantin Serebryany <kcc@google.com>
Cc: Dmitry Chernenkov <dmitryc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2016-03-25 16:37:42 -07:00
..
Makefile openrisc: Use generic idle loop 2013-04-08 17:39:27 +02:00
asm-offsets.c openrisc: use kbuild.h instead of defining macros in asm-offset.c 2012-10-25 15:54:33 +02:00
dma.c openrisc: provide dma_map_ops 2012-05-08 11:43:51 +02:00
entry.S openrisc: Rework signal handling 2014-01-09 10:57:21 +01:00
head.S openrisc: drop _PAGE_FILE and pte_file()-related helpers 2015-02-10 14:30:33 -08:00
irq.c openrisc: Get rid of handle_IRQ 2014-09-03 13:11:02 +00:00
module.c openrisc: Refactor 16-bit constant relocation 2013-11-05 16:27:55 +01:00
or32_ksyms.c OpenRISC: Miscellaneous 2011-07-22 18:46:41 +02:00
process.c whack-a-mole: no need to set_fs(USER_DS) in {start,flush}_thread() 2015-04-11 22:24:31 -04:00
prom.c openrisc: remove unnecessary prom.c includes 2013-10-09 11:39:01 -05:00
ptrace.c ARCH: AUDIT: audit_syscall_entry() should not require the arch 2014-09-23 16:21:26 -04:00
setup.c openrisc: remove use of seq_printf return value 2015-04-15 16:35:25 -07:00
signal.c arch: Remove exec_domain from remaining archs 2015-04-12 21:03:30 +02:00
sys_call_table.c OpenRISC: System calls 2011-07-22 18:46:34 +02:00
time.c openrisc/time: Migrate to new 'set-state' interface 2015-08-10 11:41:02 +02:00
traps.c dump_stack: consolidate dump_stack() implementations and unify their behaviors 2013-04-30 17:04:02 -07:00
vmlinux.h of/fdt: consolidate built-in dtb section variables 2014-04-30 00:59:13 -05:00
vmlinux.lds.S arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00