Messages in this thread | | | Date | Mon, 10 Oct 2022 09:07:41 +0100 | Subject | Re: [PATCH] drm/i915/gem: remove redundant assignments to variable ret | From | Tvrtko Ursulin <> |
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On 07/10/2022 20:47, Colin Ian King wrote: > The variable ret is being assigned with a value that is never read > both before and after a while-loop. The variable is being re-assigned > inside the while-loop and afterwards on the call to the function > i915_gem_object_lock_interruptible. Remove the redundants assignments. > > Cleans up clang scan-build warnings: > > warning: Although the value stored to 'ret' is used in the > enclosing expression, the value is never actually read > from 'ret' [deadcode.DeadStores] > > warning: Value stored to 'ret' is never read [deadcode.DeadStores] > > Signed-off-by: Colin Ian King <colin.i.king@gmail.com> > --- > drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c > index d4398948f016..b7e24476a0fd 100644 > --- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c > +++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c > @@ -292,7 +292,7 @@ int i915_gem_object_userptr_submit_init(struct drm_i915_gem_object *obj) > if (!i915_gem_object_is_readonly(obj)) > gup_flags |= FOLL_WRITE; > > - pinned = ret = 0; > + pinned = 0; > while (pinned < num_pages) { > ret = pin_user_pages_fast(obj->userptr.ptr + pinned * PAGE_SIZE, > num_pages - pinned, gup_flags, > @@ -302,7 +302,6 @@ int i915_gem_object_userptr_submit_init(struct drm_i915_gem_object *obj) > > pinned += ret; > } > - ret = 0; > > ret = i915_gem_object_lock_interruptible(obj, NULL); > if (ret)
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Thanks for the cleanup, will merge.
Regards,
Tvrtko
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