On Mon, 19 Mar 2018, Christian König wrote:
> Mhm, actually that patch isn't correct. What we grab get here is the next
> entry, not the first one.
>
> We don't have an alias list_next_entry for list_first_entry?
As compared to the semantic patch I proposed earlier today, it would seem
that list_first_entry is useful when the types are different? One would
have to check the result of course, but a list eleemnt with the same type
as the structure that contains the list might be unlikely?
julia
>
> Regards,
> Christian.
>
> Am 18.03.2018 um 22:51 schrieb Arushi Singhal:
> > This patch replaces list_entry with list_first_entry as it makes the
> > code more clear.
> > Done using coccinelle:
> >
> > @@
> > expression e;
> > @@
> > (
> > - list_entry(e->next,
> > + list_first_entry(e,
> > ...)
> > |
> > - list_entry(e->prev,
> > + list_last_entry(e,
> > ...)
> > )
> >
> > Signed-off-by: Arushi Singhal <arushisinghal19971997 at gmail.com>
> > ---
> > drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c | 4 ++--
> > drivers/gpu/drm/omapdrm/dss/display.c | 4 ++--
> > drivers/gpu/drm/radeon/radeon_sa.c | 4 ++--
> > 3 files changed, 6 insertions(+), 6 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
> > index 3144400..646f593 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
> > @@ -158,7 +158,7 @@ static void amdgpu_sa_bo_try_free(struct
> > amdgpu_sa_manager *sa_manager)
> > if (sa_manager->hole->next == &sa_manager->olist)
> > return;
> > - sa_bo = list_entry(sa_manager->hole->next, struct amdgpu_sa_bo,
> > olist);
> > + sa_bo = list_first_entry(sa_manager->hole, struct amdgpu_sa_bo,
> > olist);
> > list_for_each_entry_safe_from(sa_bo, tmp, &sa_manager->olist, olist) {
> > if (sa_bo->fence == NULL ||
> > !dma_fence_is_signaled(sa_bo->fence)) {
> > @@ -183,7 +183,7 @@ static inline unsigned amdgpu_sa_bo_hole_eoffset(struct
> > amdgpu_sa_manager *sa_ma
> > struct list_head *hole = sa_manager->hole;
> > if (hole->next != &sa_manager->olist) {
> > - return list_entry(hole->next, struct amdgpu_sa_bo,
> > olist)->soffset;
> > + return list_first_entry(hole, struct amdgpu_sa_bo,
> > olist)->soffset;
> > }
> > return sa_manager->size;
> > }
> > diff --git a/drivers/gpu/drm/omapdrm/dss/display.c
> > b/drivers/gpu/drm/omapdrm/dss/display.c
> > index 0c9480b..fb9ecae 100644
> > --- a/drivers/gpu/drm/omapdrm/dss/display.c
> > +++ b/drivers/gpu/drm/omapdrm/dss/display.c
> > @@ -158,8 +158,8 @@ struct omap_dss_device *omap_dss_get_next_device(struct
> > omap_dss_device *from)
> > goto out;
> > }
> > - dssdev = list_entry(l->next, struct omap_dss_device,
> > - panel_list);
> > + dssdev = list_first_entry(l, struct omap_dss_device,
> > + panel_list);
> > omap_dss_get_device(dssdev);
> > goto out;
> > }
> > diff --git a/drivers/gpu/drm/radeon/radeon_sa.c
> > b/drivers/gpu/drm/radeon/radeon_sa.c
> > index 197b157..66c0482 100644
> > --- a/drivers/gpu/drm/radeon/radeon_sa.c
> > +++ b/drivers/gpu/drm/radeon/radeon_sa.c
> > @@ -158,7 +158,7 @@ static void radeon_sa_bo_try_free(struct
> > radeon_sa_manager *sa_manager)
> > if (sa_manager->hole->next == &sa_manager->olist)
> > return;
> > - sa_bo = list_entry(sa_manager->hole->next, struct radeon_sa_bo,
> > olist);
> > + sa_bo = list_first_entry(sa_manager->hole, struct radeon_sa_bo,
> > olist);
> > list_for_each_entry_safe_from(sa_bo, tmp, &sa_manager->olist, olist) {
> > if (sa_bo->fence == NULL ||
> > !radeon_fence_signaled(sa_bo->fence)) {
> > return;
> > @@ -182,7 +182,7 @@ static inline unsigned radeon_sa_bo_hole_eoffset(struct
> > radeon_sa_manager *sa_ma
> > struct list_head *hole = sa_manager->hole;
> > if (hole->next != &sa_manager->olist) {
> > - return list_entry(hole->next, struct radeon_sa_bo,
> > olist)->soffset;
> > + return list_first_entry(hole, struct radeon_sa_bo,
> > olist)->soffset;
> > }
> > return sa_manager->size;
> > }
>
> --
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