arm64: percpu: Initialize ret in the default case
Clang warns that if the default case is taken, ret will be uninitialized. ./arch/arm64/include/asm/percpu.h:196:2: warning: variable 'ret' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized] default: ^~~~~~~ ./arch/arm64/include/asm/percpu.h:200:9: note: uninitialized use occurs here return ret; ^~~ ./arch/arm64/include/asm/percpu.h:157:19: note: initialize the variable 'ret' to silence this warning unsigned long ret, loop; ^ = 0 This warning appears several times while building the erofs filesystem. While it's not strictly wrong, the BUILD_BUG will prevent this from becoming a true problem. Initialize ret to 0 in the default case right before the BUILD_BUG to silence all of these warnings. Reported-by: NPrasad Sodagudi <psodagud@codeaurora.org> Signed-off-by: NNathan Chancellor <natechancellor@gmail.com> Reviewed-by: NNick Desaulniers <ndesaulniers@google.com> Signed-off-by: NDennis Zhou <dennis@kernel.org>
Showing
想要评论请 注册 或 登录