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From: zhengbin <zhengbin13-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
To: alexander.deucher-5C7GfCeVMHo@public.gmane.org,
	christian.koenig-5C7GfCeVMHo@public.gmane.org,
	David1.Zhou-5C7GfCeVMHo@public.gmane.org,
	airlied-cv59FeDIM0c@public.gmane.org,
	daniel-/w4YWyX8dFk@public.gmane.org,
	amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: zhengbin13-hv44wF8Li93QT0dZR+AlfA@public.gmane.org
Subject: [PATCH] drm/amdgpu: remove not needed memset
Date: Mon, 18 Nov 2019 17:00:31 +0800	[thread overview]
Message-ID: <1574067631-26219-1-git-send-email-zhengbin13@huawei.com> (raw)

Fixes coccicheck warning:

drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c:64:13-31: WARNING: dma_alloc_coherent use in ih -> ring already zeroes out memory,  so memset is not needed

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
index 6d8f055..111a301 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
@@ -66,7 +66,6 @@ int amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih,
 		if (ih->ring == NULL)
 			return -ENOMEM;

-		memset((void *)ih->ring, 0, ih->ring_size + 8);
 		ih->gpu_addr = dma_addr;
 		ih->wptr_addr = dma_addr + ih->ring_size;
 		ih->wptr_cpu = &ih->ring[ih->ring_size / 4];
--
2.7.4

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

WARNING: multiple messages have this Message-ID (diff)
From: zhengbin <zhengbin13@huawei.com>
To: <alexander.deucher@amd.com>, <christian.koenig@amd.com>,
	<David1.Zhou@amd.com>, <airlied@linux.ie>, <daniel@ffwll.ch>,
	<amd-gfx@lists.freedesktop.org>,
	<dri-devel@lists.freedesktop.org>
Cc: zhengbin13@huawei.com
Subject: [PATCH] drm/amdgpu: remove not needed memset
Date: Mon, 18 Nov 2019 17:00:31 +0800	[thread overview]
Message-ID: <1574067631-26219-1-git-send-email-zhengbin13@huawei.com> (raw)
Message-ID: <20191118090031.fSFtZs3Enw_mwDMSjBvR4wOY8JGn4Ca63DbGS-uCIZg@z> (raw)

Fixes coccicheck warning:

drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c:64:13-31: WARNING: dma_alloc_coherent use in ih -> ring already zeroes out memory,  so memset is not needed

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
index 6d8f055..111a301 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
@@ -66,7 +66,6 @@ int amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih,
 		if (ih->ring == NULL)
 			return -ENOMEM;

-		memset((void *)ih->ring, 0, ih->ring_size + 8);
 		ih->gpu_addr = dma_addr;
 		ih->wptr_addr = dma_addr + ih->ring_size;
 		ih->wptr_cpu = &ih->ring[ih->ring_size / 4];
--
2.7.4

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: zhengbin <zhengbin13@huawei.com>
To: <alexander.deucher@amd.com>, <christian.koenig@amd.com>,
	<David1.Zhou@amd.com>, <airlied@linux.ie>, <daniel@ffwll.ch>,
	<amd-gfx@lists.freedesktop.org>,
	<dri-devel@lists.freedesktop.org>
Cc: zhengbin13@huawei.com
Subject: [PATCH] drm/amdgpu: remove not needed memset
Date: Mon, 18 Nov 2019 17:00:31 +0800	[thread overview]
Message-ID: <1574067631-26219-1-git-send-email-zhengbin13@huawei.com> (raw)
Message-ID: <20191118090031.RiICLTOwm-EWwcNM6Qfq-9-tTwcCVkw-O2y-ZiS8z-w@z> (raw)

Fixes coccicheck warning:

drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c:64:13-31: WARNING: dma_alloc_coherent use in ih -> ring already zeroes out memory,  so memset is not needed

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
index 6d8f055..111a301 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
@@ -66,7 +66,6 @@ int amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih,
 		if (ih->ring == NULL)
 			return -ENOMEM;

-		memset((void *)ih->ring, 0, ih->ring_size + 8);
 		ih->gpu_addr = dma_addr;
 		ih->wptr_addr = dma_addr + ih->ring_size;
 		ih->wptr_cpu = &ih->ring[ih->ring_size / 4];
--
2.7.4

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

             reply	other threads:[~2019-11-18  9:00 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-18  9:00 zhengbin [this message]
2019-11-18  9:00 ` [PATCH] drm/amdgpu: remove not needed memset zhengbin
2019-11-18  9:00 ` zhengbin
     [not found] ` <1574067631-26219-1-git-send-email-zhengbin13-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2019-11-18 17:26   ` Alex Deucher
2019-11-18 17:26     ` Alex Deucher
2019-11-18 17:26     ` Alex Deucher

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