Messages in this thread | | | Date | Mon, 24 Apr 2017 13:32:55 +1000 | From | Stephen Rothwell <> | Subject | linux-next: build failure after merge of the tip tree |
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Hi all,
After merging the tip tree, today's linux-next build (arm multi_v7_defconfig) failed like this:
kernel/tracepoint.c: In function 'tracepoint_remove_func': kernel/tracepoint.c:253:4: error: implicit declaration of function 'static_key_slow_dec_cpuslocked' [-Werror=implicit-function-declaration] static_key_slow_dec_cpuslocked(&tp->key); ^
Caused by commit
24db7a671bd5 ("trace/perf: Cure hotplug lock ordering issues")
static_key_slow_dec_cpuslocked() is only defined if HAVE_JUMP_LABEL is set - which is only defined if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL). CONFIG_JUMP_LABEL is not set for this build.
I wasn't sure if just adding
#define static_key_slow_dec_cpuslocked static_key_slow_dec
in the !HAVE_JUMP_LABEL case in include/linux/jump_label.h would be sufficient, so I have reverted that commit for today.
-- Cheers, Stephen Rothwell
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