Re: [PATCH] drm/i915/gem: remove unused assignments

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On 21/06/2022 03:26, Katrin Jo wrote:
On Mon, Jun 20, 2022 at 6:19 PM Tvrtko Ursulin
<tvrtko.ursulin@xxxxxxxxxxxxxxx> wrote:


On 20/06/2022 11:02, zys.zljxml@xxxxxxxxx wrote:
From: katrinzhou <katrinzhou@xxxxxxxxxxx>

The variable ret is reassigned and the value EINVAL is never used.
Thus, remove the unused assignments.

Addresses-Coverity: ("Unused value")
Fixes: d4433c7600f7 ("drm/i915/gem: Use the proto-context to handle create parameters (v5)")
Signed-off-by: katrinzhou <katrinzhou@xxxxxxxxxxx>
---
   drivers/gpu/drm/i915/gem/i915_gem_context.c | 2 --
   1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index ab4c5ab28e4d..d5ef5243673a 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -931,8 +931,6 @@ static int set_proto_ctx_param(struct drm_i915_file_private *fpriv,
               break;

       case I915_CONTEXT_PARAM_PERSISTENCE:
-             if (args->size)
-                     ret = -EINVAL;
               ret = proto_context_set_persistence(fpriv->dev_priv, pc,
                                                   args->value);

AFAICT fix should end up with code like this:

if (args->size)
         ret = -EINVAL;
else
         ret = proto_context_set_persistence(...)
break;


Alternatively move args->size checking into
proto_context_set_persistence to align with set_persistence().

Regards,

Tvrtko

               break;

Thanks for reviewing! I sent the V2 patch, modified according to your
suggestion.

I have merged the v2 to drm-intel-gt-next - thanks for the fix!

Regards,

Tvrtko



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