Message ID | 20170417180503.30435-1-mka@chromium.org (mailing list archive) |
---|---|
State | Accepted, archived |
Delegated to: | Mike Snitzer |
Headers | show
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diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 4da6fc6b1ffd..acd8f12439e4 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1778,12 +1778,12 @@ static int validate_params(uint cmd, struct dm_ioctl *param) cmd == DM_LIST_VERSIONS_CMD) return 0; - if ((cmd == DM_DEV_CREATE_CMD)) { + if (cmd == DM_DEV_CREATE_CMD) { if (!*param->name) { DMWARN("name not supplied when creating device"); return -EINVAL; } - } else if ((*param->uuid && *param->name)) { + } else if (*param->uuid && *param->name) { DMWARN("only supply one of name or uuid, cmd(%u)", cmd); return -EINVAL; }
The extra pair of parantheses is not needed and causes clang to generate the following warning: drivers/md/dm-ioctl.c:1776:11: error: equality comparison with extraneous parentheses [-Werror,-Wparentheses-equality] if ((cmd == DM_DEV_CREATE_CMD)) { ~~~~^~~~~~~~~~~~~~~~~~~~ drivers/md/dm-ioctl.c:1776:11: note: remove extraneous parentheses around the comparison to silence this warning if ((cmd == DM_DEV_CREATE_CMD)) { ~ ^ ~ drivers/md/dm-ioctl.c:1776:11: note: use '=' to turn this equality comparison into an assignment if ((cmd == DM_DEV_CREATE_CMD)) { ^~ = Also remove another double parentheses that don't cause a warning. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> --- drivers/md/dm-ioctl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)