[PATCH 09/16] wcn36xx: Add smd.c

Johannes Berg johannes at sipsolutions.net
Wed Aug 21 04:15:22 EDT 2013


On Wed, 2013-08-21 at 09:58 +0200, Eugene Krasnikov wrote:
> 2013/8/20 Joe Perches <joe at perches.com>:
> > On Tue, 2013-08-20 at 19:41 +0200, Eugene Krasnikov wrote:
> >
> >> diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
> > []
> >> +int wcn36xx_smd_load_nv(struct wcn36xx *wcn)
> >> +{
> > []
> >> +             /* Add NV body itself */
> >> +             /* Rework me */
> >> +             memcpy(wcn->smd_buf + sizeof(msg_body),
> >> +                    (void *)(&nv_d->table) + fm_offset,
> >> +                    msg_body.nv_img_buffer_size);
> >
> > Does this really do what you want?
> >
> > Perhaps it should be:
> >
> >                 memcpy(wcn->smd_buf + sizeof(msg_body),
> >                        ((void *)&nv_d->table) + fm_offset,
> >                        msg_body.nv_img_buffer_size);
> >
> 
> Yes, this line is working. Tested it for ARM. Do you see any potential
> problems with this pointer operation?

It should really be u8* instead of void*, since void* pointer arithmetic
isn't really defined I think?

Other than that, this was just about precedence rules, and casts have a
higher precedence.

johannes




More information about the wcn36xx mailing list