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From: Yuan Can <yuancan@huawei.com>
To: <Felix.Kuehling@amd.com>, <alexander.deucher@amd.com>,
	<christian.koenig@amd.com>, <Xinhui.Pan@amd.com>,
	<airlied@gmail.com>, <simona@ffwll.ch>, <mukul.joshi@amd.com>,
	<amd-gfx@lists.freedesktop.org>,
	<dri-devel@lists.freedesktop.org>
Cc: <yuancan@huawei.com>
Subject: [PATCH] drm/amdkfd: Fix wrong usage of INIT_WORK()
Date: Wed, 6 Nov 2024 09:35:41 +0800	[thread overview]
Message-ID: <20241106013541.77666-1-yuancan@huawei.com> (raw)

In kfd_procfs_show(), the sdma_activity_work_handler is a local variable
and the sdma_activity_work_handler.sdma_activity_work should initialize
with INIT_WORK_ONSTACK() instead of INIT_WORK().

Fixes: 32cb59f31362 ("drm/amdkfd: Track SDMA utilization per process")
Signed-off-by: Yuan Can <yuancan@huawei.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_process.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index d4aa843aacfd..2792015f1054 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -338,8 +338,8 @@ static ssize_t kfd_procfs_show(struct kobject *kobj, struct attribute *attr,
 							      attr_sdma);
 		struct kfd_sdma_activity_handler_workarea sdma_activity_work_handler;
 
-		INIT_WORK(&sdma_activity_work_handler.sdma_activity_work,
-					kfd_sdma_activity_worker);
+		INIT_WORK_ONSTACK(&sdma_activity_work_handler.sdma_activity_work,
+				  kfd_sdma_activity_worker);
 
 		sdma_activity_work_handler.pdd = pdd;
 		sdma_activity_work_handler.sdma_activity_counter = 0;
@@ -347,6 +347,7 @@ static ssize_t kfd_procfs_show(struct kobject *kobj, struct attribute *attr,
 		schedule_work(&sdma_activity_work_handler.sdma_activity_work);
 
 		flush_work(&sdma_activity_work_handler.sdma_activity_work);
+		destroy_work_on_stack(&sdma_activity_work_handler.sdma_activity_work);
 
 		return snprintf(buffer, PAGE_SIZE, "%llu\n",
 				(sdma_activity_work_handler.sdma_activity_counter)/
-- 
2.17.1


             reply	other threads:[~2024-11-06  8:24 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-06  1:35 Yuan Can [this message]
2024-11-06 21:41 ` [PATCH] drm/amdkfd: Fix wrong usage of INIT_WORK() Felix Kuehling

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