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| author | Jiri Olsa <jolsa@redhat.com> | 2021-11-01 16:39:07 +0100 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-11-01 20:56:51 -0400 |
| commit | 67d4f6e3bf5dddced226fbf19704cdbbb0c98847 (patch) | |
| tree | 4fd82f9c6051b0a2f740941b0419fd43198d7cb6 /samples | |
| parent | 4e9f63c9e5c2597692567ee1cb0851a21104a531 (diff) | |
| download | lwn-67d4f6e3bf5dddced226fbf19704cdbbb0c98847.tar.gz lwn-67d4f6e3bf5dddced226fbf19704cdbbb0c98847.zip | |
ftrace/samples: Add missing prototype for my_direct_func
There's compilation fail reported kernel test robot for W=1 build:
>> samples/ftrace/ftrace-direct-multi.c:8:6: warning: no previous
prototype for function 'my_direct_func' [-Wmissing-prototypes]
void my_direct_func(unsigned long ip)
The inlined assembly is used outside function, so we can't make
my_direct_func static and pass it as asm input argument.
However my_tramp is already extern so I think there's no problem
keeping my_direct_func extern as well and just add its prototype.
Link: https://lkml.kernel.org/r/20211101153907.377668-1-jolsa@kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 5fae941b9a6f ("ftrace/samples: Add multi direct interface test module")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/ftrace/ftrace-direct-multi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/samples/ftrace/ftrace-direct-multi.c b/samples/ftrace/ftrace-direct-multi.c index 2a5b1fb7ac14..b6d7806b400e 100644 --- a/samples/ftrace/ftrace-direct-multi.c +++ b/samples/ftrace/ftrace-direct-multi.c @@ -5,6 +5,8 @@ #include <linux/ftrace.h> #include <linux/sched/stat.h> +extern void my_direct_func(unsigned long ip); + void my_direct_func(unsigned long ip) { trace_printk("ip %lx\n", ip); |