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| author | Christian König <christian.koenig@amd.com> | 2022-01-19 11:17:32 +0100 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-02-08 09:19:45 +0100 |
| commit | 976b6d97c62347df3e686f60a5f455bb8ed6ea23 (patch) | |
| tree | bbbb3b16a0022dffaa0dfdbebadae1515e3dde82 /include/linux/dma-fence-array.h | |
| parent | ea181a3494699f48e80687e3d467d443883ae0e9 (diff) | |
| download | lwn-976b6d97c62347df3e686f60a5f455bb8ed6ea23.tar.gz lwn-976b6d97c62347df3e686f60a5f455bb8ed6ea23.zip | |
dma-buf: consolidate dma_fence subclass checking
Consolidate the wrapper functions to check for dma_fence
subclasses in the dma_fence header.
This makes it easier to document and also check the different
requirements for fence containers in the subclasses.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204100429.2049-2-christian.koenig@amd.com
Diffstat (limited to 'include/linux/dma-fence-array.h')
| -rw-r--r-- | include/linux/dma-fence-array.h | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/include/linux/dma-fence-array.h b/include/linux/dma-fence-array.h index 303dd712220f..fec374f69e12 100644 --- a/include/linux/dma-fence-array.h +++ b/include/linux/dma-fence-array.h @@ -45,19 +45,6 @@ struct dma_fence_array { struct irq_work work; }; -extern const struct dma_fence_ops dma_fence_array_ops; - -/** - * dma_fence_is_array - check if a fence is from the array subsclass - * @fence: fence to test - * - * Return true if it is a dma_fence_array and false otherwise. - */ -static inline bool dma_fence_is_array(struct dma_fence *fence) -{ - return fence->ops == &dma_fence_array_ops; -} - /** * to_dma_fence_array - cast a fence to a dma_fence_array * @fence: fence to cast to a dma_fence_array @@ -68,7 +55,7 @@ static inline bool dma_fence_is_array(struct dma_fence *fence) static inline struct dma_fence_array * to_dma_fence_array(struct dma_fence *fence) { - if (fence->ops != &dma_fence_array_ops) + if (!fence || !dma_fence_is_array(fence)) return NULL; return container_of(fence, struct dma_fence_array, base); |