From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: "Felix Kuehling" <Felix.Kuehling@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"David (ChunMing) Zhou" <David1.Zhou@amd.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Mukul Joshi" <mukul.joshi@amd.com>
Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] drm/amdkfd: Remove logically dead code in kfd_procfs_show
Date: Fri, 1 May 2020 13:56:21 -0500 [thread overview]
Message-ID: <20200501185621.GA17880@embeddedor> (raw)
container_of is never null, so the null check on pdd is unnecessary.
If the null check is removed, function kfd_procfs_show()
will always return before reaching "return 0", hence
such return is logically dead. So, remove it, as well.
Addresses-Coverity-ID: 1492793 ("Logically dead code")
Fixes: d4566dee849e ("drm/amdkfd: Track GPU memory utilization per process")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index 598296034b43..63dcd30b2cdc 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -87,14 +87,11 @@ static ssize_t kfd_procfs_show(struct kobject *kobj, struct attribute *attr,
} else if (strncmp(attr->name, "vram_", 5) == 0) {
struct kfd_process_device *pdd = container_of(attr, struct kfd_process_device,
attr_vram);
- if (pdd)
- return snprintf(buffer, PAGE_SIZE, "%llu\n", READ_ONCE(pdd->vram_usage));
+ return snprintf(buffer, PAGE_SIZE, "%llu\n", READ_ONCE(pdd->vram_usage));
} else {
pr_err("Invalid attribute");
return -EINVAL;
}
-
- return 0;
}
static void kfd_procfs_kobj_release(struct kobject *kobj)
--
2.26.0
reply other threads:[~2020-05-01 18:52 UTC|newest]
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