linux-kernel - [PATCH][next] drm/i915/gvt: remove redundant assignment to pointer map

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Date: Fri,  9 Feb 2024 16:08:29 +0000
From: Colin Ian King <colin.i.king@...il.com>
To: Zhenyu Wang <zhenyuw@...ux.intel.com>,
	Zhi Wang <zhi.wang.linux@...il.com>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
	David Airlie <airlied@...il.com>,
	intel-gvt-dev@...ts.freedesktop.org,
	intel-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Cc: kernel-janitors@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][next] drm/i915/gvt: remove redundant assignment to pointer map

The pointer map is being initialized with a value that is never
read, it is being re-assigned later on in a for-loop. The
initialization is redundant and can be removed.

Cleans up clang scan build warning:
drivers/gpu/drm/i915/gvt/interrupt.c:346:28: warning: Value stored to
'map' during its initialization is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/gpu/drm/i915/gvt/interrupt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gvt/interrupt.c b/drivers/gpu/drm/i915/gvt/interrupt.c
index c8e7dfc9f791..8c8e37f50a45 100644
--- a/drivers/gpu/drm/i915/gvt/interrupt.c
+++ b/drivers/gpu/drm/i915/gvt/interrupt.c
@@ -343,7 +343,7 @@ static void update_upstream_irq(struct intel_vgpu *vgpu,
 {
 	struct drm_i915_private *i915 = vgpu->gvt->gt->i915;
 	struct intel_gvt_irq *irq = &vgpu->gvt->irq;
-	struct intel_gvt_irq_map *map = irq->irq_map;
+	struct intel_gvt_irq_map *map;
 	struct intel_gvt_irq_info *up_irq_info = NULL;
 	u32 set_bits = 0;
 	u32 clear_bits = 0;
-- 
2.39.2