linux-kernel - RE: [PATCH] drm/amdgpu/virt: remove redundant variable pf2vf

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Date:   Mon, 13 Nov 2017 03:43:17 +0000
From:   "Liu, Monk" <Monk.Liu@....com>
To:     "Chen, Horace" <Horace.Chen@....com>,
        Colin King <colin.king@...onical.com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Koenig, Christian" <Christian.Koenig@....com>,
        David Airlie <airlied@...ux.ie>,
        "Yu, Xiangliang" <Xiangliang.Yu@....com>,
        "amd-gfx@...ts.freedesktop.org" <amd-gfx@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
CC:     "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] drm/amdgpu/virt: remove redundant variable pf2vf_ver

+ Horace

-----Original Message-----
From: Colin King [mailto:colin.king@...onical.com] 
Sent: 2017年11月11日 19:51
To: Deucher, Alexander <Alexander.Deucher@....com>; Koenig, Christian <Christian.Koenig@....com>; David Airlie <airlied@...ux.ie>; Liu, Monk <Monk.Liu@....com>; Yu, Xiangliang <Xiangliang.Yu@....com>; amd-gfx@...ts.freedesktop.org; dri-devel@...ts.freedesktop.org
Cc: kernel-janitors@...r.kernel.org; linux-kernel@...r.kernel.org
Subject: [PATCH] drm/amdgpu/virt: remove redundant variable pf2vf_ver

From: Colin Ian King <colin.king@...onical.com>

Variable pf2vf_ver is assigned but never read, it is redundant and hence can be removed.

Cleans up clang warning:
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:310:3: warning: Value stored to 'pf2vf_ver' is never read

Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index 6738df836a70..b1cc179512fa 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -296,7 +296,6 @@ int amdgpu_virt_fw_reserve_get_checksum(void *obj,
 
 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)  {
-	uint32_t pf2vf_ver = 0;
 	uint32_t pf2vf_size = 0;
 	uint32_t checksum = 0;
 	uint32_t checkval;
@@ -309,7 +308,6 @@ void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)
 		adev->virt.fw_reserve.p_pf2vf =
 			(struct amdgim_pf2vf_info_header *)(
 			adev->fw_vram_usage.va + AMDGIM_DATAEXCHANGE_OFFSET);
-		pf2vf_ver = adev->virt.fw_reserve.p_pf2vf->version;
 		AMDGPU_FW_VRAM_PF2VF_READ(adev, header.size, &pf2vf_size);
 		AMDGPU_FW_VRAM_PF2VF_READ(adev, checksum, &checksum);
 
--
2.14.1