Re: [PATCH] dma-fence: Fix safe access wrapper to call timeline name method
From: Christian König
Date: Mon Oct 27 2025 - 06:28:53 EST
On 10/21/25 20:36, Tvrtko Ursulin wrote:
>
> On 21/10/2025 17:09, Akash Goel wrote:
>> This commit fixes the wrapper function dma_fence_timeline_name(), that
>> was added for safe access, to actually call the timeline name method of
>> dma_fence_ops.
>>
>> Cc: <stable@xxxxxxxxxxxxxxx> # v6.17+
>> Signed-off-by: Akash Goel <akash.goel@xxxxxxx>
>
> Fixes: 506aa8b02a8d ("dma-fence: Add safe access helpers and document the rules")
>
> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxx>
Good catch, Reviewed-by: Christian König <christian.koenig@xxxxxxx> as well.
Please ping me if you need somebody to push this to drm-misc-fixes.
Thanks,
Christian.
>
> Apologies for the copy and paste snafu.
>
> Regards,
>
> Tvrtko
>
>> ---
>> 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 3f78c56b58dc..39e6f93dc310 100644
>> --- a/drivers/dma-buf/dma-fence.c
>> +++ b/drivers/dma-buf/dma-fence.c
>> @@ -1141,7 +1141,7 @@ const char __rcu *dma_fence_timeline_name(struct dma_fence *fence)
>> "RCU protection is required for safe access to returned string");
>> if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags))
>> - return fence->ops->get_driver_name(fence);
>> + return fence->ops->get_timeline_name(fence);
>> else
>> return "signaled-timeline";
>> }
>