[Nouveau] [PATCH 15/40] drm/nouveau/nouveau_svm: Remove unused variable 'ret' from void function

[Karol Herbst]

On Fri, Apr 16, 2021 at 4:38 PM Lee Jones <lee.jones at linaro.org> wrote:
>
> Fixes the following W=1 kernel build warning(s):
>
>  drivers/gpu/drm/nouveau/nouveau_svm.c: In function ‘nouveau_pfns_map’:
>  drivers/gpu/drm/nouveau/nouveau_svm.c:810:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
>
> Cc: Ben Skeggs <bskeggs at redhat.com>
> Cc: David Airlie <airlied at linux.ie>
> Cc: Daniel Vetter <daniel at ffwll.ch>
> Cc: dri-devel at lists.freedesktop.org
> Cc: nouveau at lists.freedesktop.org
> Signed-off-by: Lee Jones <lee.jones at linaro.org>
> ---
>  drivers/gpu/drm/nouveau/nouveau_svm.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
> index 1c3f890377d2c..26af6ee915368 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_svm.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_svm.c
> @@ -811,7 +811,6 @@ nouveau_pfns_map(struct nouveau_svmm *svmm, struct mm_struct *mm,
>                  unsigned long addr, u64 *pfns, unsigned long npages)
>  {
>         struct nouveau_pfnmap_args *args = nouveau_pfns_to_args(pfns);
> -       int ret;
>
>         args->p.addr = addr;
>         args->p.size = npages << PAGE_SHIFT;
> @@ -819,8 +818,8 @@ nouveau_pfns_map(struct nouveau_svmm *svmm, struct mm_struct *mm,
>         mutex_lock(&svmm->mutex);
>
>         svmm->vmm->vmm.object.client->super = true;
> -       ret = nvif_object_ioctl(&svmm->vmm->vmm.object, args, sizeof(*args) +
> -                               npages * sizeof(args->p.phys[0]), NULL);
> +       nvif_object_ioctl(&svmm->vmm->vmm.object, args, sizeof(*args) +
> +                         npages * sizeof(args->p.phys[0]), NULL);

yeah mhh.. I think this one is actually fine, but it might make sense
to still report something back, although in userspace we still don't
care as the CL API doesn't return any error.

>         svmm->vmm->vmm.object.client->super = false;
>
>         mutex_unlock(&svmm->mutex);
> --
> 2.27.0
>
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