Re: [PATCH rdma-next 1/2] RDMA/uverbs: Remove redundant assignments

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On Sun, Jul 19, 2020 at 04:21:04PM +0300, Gal Pressman wrote:
> On 19/07/2020 9:03, Leon Romanovsky wrote:
> > From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> >
> > The kbuild reported the following warning, so clean whole uverbs_cmd.c file.
> >
> >    drivers/infiniband/core/uverbs_cmd.c:1066:6: warning: Variable 'ret'
> > is reassigned a value before the old one has
> > been used. [redundantAssignment]
> >     ret = uverbs_request(attrs, &cmd, sizeof(cmd));
> >         ^
> >    drivers/infiniband/core/uverbs_cmd.c:1064:0: note: Variable 'ret' is
> > reassigned a value before the old one has been
> > used.
> >     int    ret = -EINVAL;
> >    ^
> >
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> > ---
> >  drivers/infiniband/core/uverbs_cmd.c | 12 ++++++------
> >  1 file changed, 6 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
> > index a66fc3e37a74..7d2b4258f573 100644
> > --- a/drivers/infiniband/core/uverbs_cmd.c
> > +++ b/drivers/infiniband/core/uverbs_cmd.c
> > @@ -558,9 +558,9 @@ static int ib_uverbs_open_xrcd(struct uverbs_attr_bundle *attrs)
> >  	struct ib_uverbs_open_xrcd	cmd;
> >  	struct ib_uxrcd_object         *obj;
> >  	struct ib_xrcd                 *xrcd = NULL;
> > -	struct fd			f = {NULL, 0};
> > +	struct fd f = {};
> >  	struct inode                   *inode = NULL;
> > -	int				ret = 0;
> > +	int ret;
> >  	int				new_xrcd = 0;
> >  	struct ib_device *ib_dev;
>
> I don't mind removing the whitespace, but changing it for just some of the
> variables makes it harder to read the code IMO.

I wanted to remove for all variables in the same patch but was afraid to hear
opposition and waste my time on redoing it.

Once we decide that this should be done, we will change. It will take less than
ten seconds with clang-formatter.

Thanks



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