On Tue, 12 Feb 2019 15:03:11 -0600 "Gustavo A. R. Silva" <[email protected]> wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch > cases where we are expecting to fall through. > > This patch fixes the following warning: > > kernel/trace/blktrace.c: In function ‘blk_trace_ioctl’: > kernel/trace/blktrace.c:725:9: warning: this statement may fall through > [-Wimplicit-fallthrough=] > start = 1; > ~~~~~~^~~ > kernel/trace/blktrace.c:726:2: note: here > case BLKTRACESTOP: > ^~~~ > > Warning level 3 was used: -Wimplicit-fallthrough=3 > > This patch is part of the ongoing efforts to enable > -Wimplicit-fallthrough. > Acked-by: Steven Rostedt (VMware) <[email protected]> -- Steve > Signed-off-by: Gustavo A. R. Silva <[email protected]> > --- > kernel/trace/blktrace.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c > index fac0ddf8a8e2..e1c6d79fb4cc 100644 > --- a/kernel/trace/blktrace.c > +++ b/kernel/trace/blktrace.c > @@ -723,6 +723,7 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned > cmd, char __user *arg) > #endif > case BLKTRACESTART: > start = 1; > + /* fall through */ > case BLKTRACESTOP: > ret = __blk_trace_startstop(q, start); > break;
