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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
..
.gitignore parisc: add arch/parisc/kernel/.gitignore 2008-10-10 16:32:28 +00:00
Makefile parisc: add kernel audit feature 2013-11-07 22:27:20 +01:00
asm-offsets.c parisc: Map kernel text and data on huge pages 2015-11-22 12:23:19 +01:00
audit.c parisc: add kernel audit feature 2013-11-07 22:27:20 +01:00
binfmt_elf32.c parisc: fix redefinition of SET_PERSONALITY 2013-03-02 20:15:28 +01:00
cache.c parisc: Imporove debug info about space registers and TLB configuration 2016-01-12 22:12:09 +01:00
compat_audit.c parisc: add kernel audit feature 2013-11-07 22:27:20 +01:00
drivers.c parisc: convert to dma_map_ops 2016-01-20 17:09:18 -08:00
entry.S parisc: Add Huge Page and HUGETLBFS support 2015-11-22 12:23:10 +01:00
firmware.c parisc: delete __cpuinit usage from all users 2013-07-14 19:36:51 -04:00
ftrace.c parisc: ftrace: Remove check of obsolete variable function_trace_stop 2014-07-18 13:57:05 -04:00
hardware.c parisc: add serial ports of C8000/1GHz machine to hardware database 2014-07-13 15:51:58 +02:00
head.S parisc: Increase initial kernel mapping to 32MB on 64bit kernel 2015-11-22 12:22:53 +01:00
hpmc.S parisc: fix partly 16/64k PAGE_SIZE boot 2013-05-06 23:08:32 +02:00
inventory.c parisc: Fix interrupt routing for C8000 serial ports 2013-07-31 23:42:32 +02:00
irq.c parisc: Filter out spurious interrupts in PA-RISC irq handler 2015-09-08 15:31:16 +02:00
module.c module: use a structure to encapsulate layout. 2015-12-04 22:46:25 +01:00
pa7300lc.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pacache.S parisc: Use unshadowed index register for flush instructions in flush_dcache_page_asm and flush_icache_page_asm 2013-06-18 20:29:10 +02:00
parisc_ksyms.c parisc: Provide __ucmpdi2 to resolve undefined references in 32 bit builds. 2013-04-25 22:36:15 +02:00
pci-dma.c parisc: convert to dma_map_ops 2016-01-20 17:09:18 -08:00
pci.c parisc: Initialize PCI bridge cache line and default latency 2016-01-12 22:03:21 +01:00
pdc_chassis.c parisc: single_open() leaks 2013-05-05 00:10:41 -04:00
pdc_cons.c parisc: don't use module_init for non-modular core pdc_cons code 2015-06-16 14:12:30 -04:00
perf.c parisc64: don't use module_init for non-modular core perf code 2015-06-16 14:12:30 -04:00
perf_asm.S Revert "parisc: fix trivial section name warnings" 2008-06-13 10:49:45 -04:00
perf_images.h [PARISC] Use kzalloc and other janitor-style cleanups 2006-01-22 20:26:31 -05:00
process.c parisc: copy_thread(): rename 'arg' argument to 'kthread_arg' 2015-04-24 13:45:55 +02:00
processor.c parisc: Reduce overhead of parisc_requires_coherency() 2016-01-12 22:03:36 +01:00
ptrace.c parisc: Fix ptrace syscall number and return value modification 2016-03-01 23:06:07 +01:00
real2.S parisc: move pdc_result to real2.S 2008-10-10 16:32:28 +00:00
setup.c parisc: Add Huge Page and HUGETLBFS support 2015-11-22 12:23:10 +01:00
signal.c parisc: Fix syscall restarts 2015-12-21 10:16:18 +01:00
signal32.c constify copy_siginfo_to_user{,32}() 2013-11-09 00:16:29 -05:00
signal32.h constify copy_siginfo_to_user{,32}() 2013-11-09 00:16:29 -05:00
smp.c arch/hotplug: Call into idle with a proper state 2016-03-01 20:36:57 +01:00
stacktrace.c parisc: add LATENCYTOP_SUPPORT and CONFIG_STACKTRACE_SUPPORT 2009-03-31 02:51:34 +00:00
sys_parisc.c parisc: Drop alloc_hugepages and free_hugepages syscalls 2016-03-23 15:42:18 +01:00
sys_parisc32.c parisc: drop unused defines and header includes 2014-07-13 15:56:12 +02:00
syscall.S parisc: Fix ptrace syscall number and return value modification 2016-03-01 23:06:07 +01:00
syscall_table.S parisc: Wire up preadv2 and pwritev2 syscalls 2016-03-23 16:22:42 +01:00
time.c parisc: Use platform_device_register_simple("rtc-generic") 2015-09-08 17:53:48 +02:00
topology.c parisc: Replace NR_CPUS in parisc code 2009-01-05 19:09:02 +00:00
traps.c parisc: Panic immediately when panic_on_oops 2016-03-23 15:46:16 +01:00
unaligned.c parisc: show number of FPE and unaligned access handler calls in /proc/interrupts 2013-05-24 22:35:26 +02:00
unwind.c parisc: use kernel_text_address() in unwind functions 2013-11-30 22:08:54 +01:00
vmlinux.lds.S arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections 2016-03-25 16:37:42 -07:00