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Message-ID: <878rprtzh4.fsf@intel.com>
Date: Mon, 20 Jun 2022 13:12:55 +0300
From: Jani Nikula <jani.nikula@...ux.intel.com>
To: zys.zljxml@...il.com, dri-devel@...ts.freedesktop.org,
intel-gfx@...ts.freedesktop.org, joonas.lahtinen@...ux.intel.com,
rodrigo.vivi@...el.com, tvrtko.ursulin@...ux.intel.com,
airlied@...ux.ie, daniel@...ll.ch
Cc: bob.beckett@...labora.com, matthew.auld@...el.com,
thomas.hellstrom@...ux.intel.com, kernel@...labora.com,
linux-kernel@...r.kernel.org, katrinzhou <katrinzhou@...cent.com>
Subject: Re: [PATCH] drm/i915/gem: remove unused assignments
On Mon, 20 Jun 2022, zys.zljxml@...il.com wrote:
> From: katrinzhou <katrinzhou@...cent.com>
>
> The variable ret is reassigned and the value EINVAL is never used.
> Thus, remove the unused assignments.
It's obviously a bug, but it's not obvious just throwing the code away
is the fix. Maybe there's a missing "else" instead.
BR,
Jani.
>
> Addresses-Coverity: ("Unused value")
> Fixes: d4433c7600f7 ("drm/i915/gem: Use the proto-context to handle create parameters (v5)")
> Signed-off-by: katrinzhou <katrinzhou@...cent.com>
> ---
> 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);
> break;
--
Jani Nikula, Intel Open Source Graphics Center
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