diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2021-10-12 16:08:07 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-10-15 11:25:15 +0200 |
| commit | 37b47298ab864fb3f5488ddebfc35267ceab0553 (patch) | |
| tree | a156ebd296c01d670825e34dfedb9f1029c35dfb /kernel/sched | |
| parent | 42a20f86dc19f9282d974df0ba4d226c865ab9dd (diff) | |
sched: Disable -Wunused-but-set-variable
The compilers can't deal with obvious DCE vs that warning, resulting
in code like:
if (0) {
sched sched_statistics *stats;
stats = __schedstats_from_se(se);
...
}
triggering the warning. Kill the warning to make the robots stop
reporting this.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lkml.kernel.org/r/YWWPLnaZGybHsTkv@hirez.programming.kicks-ass.net
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile index 978fcfca5871..c7421f2d05e1 100644 --- a/kernel/sched/Makefile +++ b/kernel/sched/Makefile @@ -3,6 +3,10 @@ ifdef CONFIG_FUNCTION_TRACER CFLAGS_REMOVE_clock.o = $(CC_FLAGS_FTRACE) endif +# The compilers are complaining about unused variables inside an if(0) scope +# block. This is daft, shut them up. +ccflags-y += $(call cc-disable-warning, unused-but-set-variable) + # These files are disabled because they produce non-interesting flaky coverage # that is not a function of syscall inputs. E.g. involuntary context switches. KCOV_INSTRUMENT := n |