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Thu, 25 Jun 2026 07:12:44 -0700 (PDT) Received: from localhost.localdomain ([117.133.183.252]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-845a40d23d7sm4838015b3a.30.2026.06.25.07.12.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jun 2026 07:12:43 -0700 (PDT) From: Baineng Shou To: Sumit Semwal , =?UTF-8?q?Christian=20K=C3=B6nig?= Cc: Tvrtko Ursulin , Philipp Stanner , Akash Goel , linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Baineng Shou Subject: [PATCH] dma-fence: Fix dma_fence_timeline_name() to call get_timeline_name() Date: Thu, 25 Jun 2026 22:12:27 +0800 Message-Id: <20260625141227.38931-1-shoubaineng@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit dma_fence_timeline_name() incorrectly invokes ops->get_driver_name() instead of ops->get_timeline_name(), so every caller receives the driver name where the timeline name was expected. This is a copy-paste regression that has resurfaced twice. It was originally introduced by commit 62918542b7bf ("dma-fence: Fix sparse warnings due __rcu annotations") when adding the __rcu casts, fixed by commit 033559473dd3 ("dma-fence: Fix safe access wrapper to call timeline name method"), and then accidentally reintroduced by commit e58b4dea9054 ("dma-buf/dma-fence: Add dma_fence_test_signaled_flag()") when both wrappers were refactored to use the new helper. Signed-off-by: Baineng Shou --- drivers/dma-buf/dma-fence.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index b3bfa6943a8e..5292d714419b 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -1202,7 +1202,7 @@ const char __rcu *dma_fence_timeline_name(struct dma_fence *fence) /* RCU protection is required for safe access to returned string */ ops = rcu_dereference(fence->ops); if (!dma_fence_test_signaled_flag(fence)) - return (const char __rcu *)ops->get_driver_name(fence); + return (const char __rcu *)ops->get_timeline_name(fence); else return (const char __rcu *)"signaled-timeline"; } -- 2.34.1