Ben Hutchings 98dcea0cfd tools/lib/lockdep: Reduce MAX_LOCK_DEPTH to avoid overflowing lock_chain/: Depth ... liblockdep has been broken since commit 75dd602a51 ("lockdep: Fix lock_chain::base size"), as that adds a check that MAX_LOCK_DEPTH is within the range of lock_chain::depth and in liblockdep it is much too large. That should have resulted in a compiler error, but didn't because: - the check uses ARRAY_SIZE(), which isn't yet defined in liblockdep so is assumed to be an (undeclared) function - putting a function call inside a BUILD_BUG_ON() expression quietly turns it into some nonsense involving a variable-length array It did produce a compiler warning, but I didn't notice because liblockdep already produces too many warnings if -Wall is enabled (which I'll fix shortly). Even before that commit, which reduced lock_chain::depth from 8 bits to 6, MAX_LOCK_DEPTH was too large. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Cc: <stable@vger.kernel.org> # for versions before 4.6, use a value of 255 Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: a.p.zijlstra@chello.nl Link: http://lkml.kernel.org/r/20170525130005.5947-3-alexander.levin@verizon.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2017-06-05 09:28:03 +02:00
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api	tools lib api fs: Introduce sysfs__read_bool	2017-03-17 11:49:09 -03:00
bpf	bpf: Add bpf_verify_program() to the library.	2017-05-11 14:19:00 -04:00
lockdep	tools/lib/lockdep: Reduce MAX_LOCK_DEPTH to avoid overflowing lock_chain/: Depth	2017-06-05 09:28:03 +02:00
subcmd	tools lib string: Adopt prefixcmp() from perf and subcmd	2017-04-26 15:49:21 -03:00
symbol	perf tools: Move sane ctype stuff from util.h to sane_ctype.h	2017-04-19 13:01:48 -03:00
traceevent	scripts/spelling.txt: add "overide" pattern and fix typo instances	2017-03-09 17:01:09 -08:00
bitmap.c	tools lib: Add bitmap_and function	2016-08-02 16:33:27 -03:00
find_bit.c	lib/find_bit.c: micro-optimise find_next_*_bit	2017-02-24 17:46:57 -08:00
hweight.c	tools: Copy lib/hweight.c from the kernel sources	2015-07-09 16:29:56 -03:00
rbtree.c	tools: Copy lib/rbtree.c to tools/lib/	2015-07-05 22:48:21 -03:00
str_error_r.c	tools: Introduce str_error_r()	2016-07-12 15:19:47 -03:00
string.c	tools lib string: Adopt prefixcmp() from perf and subcmd	2017-04-26 15:49:21 -03:00
vsprintf.c	perf tools: Uninline scnprintf() and vscnprint()	2016-07-12 15:20:24 -03:00