Messages in this thread | | | Date | Thu, 7 Apr 2022 10:59:17 -0400 | From | Steven Rostedt <> | Subject | Re: [PATCH -next] ftrace: Fix build warning |
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On Thu, 7 Apr 2022 15:46:12 +0800 YueHaibing <yuehaibing@huawei.com> wrote:
> If CONFIG_SYSCTL and CONFIG_DYNAMIC_FTRACE is n, build warns: > > kernel/trace/ftrace.c:7912:13: error: ‘is_permanent_ops_registered’ defined but not used [-Werror=unused-function] > static bool is_permanent_ops_registered(void) > ^~~~~~~~~~~~~~~~~~~~~~~~~~~ > kernel/trace/ftrace.c:89:12: error: ‘last_ftrace_enabled’ defined but not used [-Werror=unused-variable] > static int last_ftrace_enabled; > ^~~~~~~~~~~~~~~~~~~ > > Move is_permanent_ops_registered() to ifdef block and mark last_ftrace_enabled as > __maybe_unused to fix this. > > Fixes: 7cde53da38a3 ("ftrace: move sysctl_ftrace_enabled to ftrace.c") > Signed-off-by: YueHaibing <yuehaibing@huawei.com> > --- > kernel/trace/ftrace.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-)
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
-- Steve
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