Re: [PATCH] dm ioctl: Remove double parentheses

From: Joe Perches
Date: Fri Mar 31 2017 - 22:07:56 EST


On Fri, 2017-03-31 at 18:50 -0700, Matthias Kaehlcke wrote:
> El Thu, Mar 16, 2017 at 09:48:30AM -0700 Matthias Kaehlcke ha dit:
>
> > 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)) {

There are dozens of these comparisons in the kernel.
Are you fixing them all or just this one?