5.15-stable review patch. If anyone has any objections, please let me know.
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From: Yuan Can yuancan@huawei.com
[ Upstream commit 21cae8debc6a1d243f64fa82cd1b41cb612b5c61 ]
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 Signed-off-by: Felix Kuehling felix.kuehling@amd.com Reviewed-by: Felix Kuehling felix.kuehling@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 7f69031f2b61a..49810642bc2b8 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -311,8 +311,8 @@ 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; @@ -320,6 +320,7 @@ 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)/