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| author | Christian König <christian.koenig@amd.com> | 2022-04-22 14:38:47 +0200 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-05-04 12:09:53 +0200 |
| commit | f778f405faa2cda2342ac290b24c2c17c25d7c16 (patch) | |
| tree | d60c23a1bb607b2cff48af3cd2b2c9e1bf1a2625 /drivers/dma-buf | |
| parent | d7442505de9259f8b975232470378d399c25b2fa (diff) | |
| download | linux-stable-f778f405faa2cda2342ac290b24c2c17c25d7c16.tar.gz linux-stable-f778f405faa2cda2342ac290b24c2c17c25d7c16.tar.bz2 linux-stable-f778f405faa2cda2342ac290b24c2c17c25d7c16.zip | |
dma-buf/sync_file: cleanup fence merging a bit
krealloc_array() ignores attempts to reduce the array size, so the attempt
to save memory is completely pointless here.
Also move testing for the no fence case into sync_file_set_fence(), this
way we don't even touch the fence array when we don't have any fences.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220426124637.329764-1-christian.koenig@amd.com
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/sync_file.c | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c index 514d213261df..0fe564539166 100644 --- a/drivers/dma-buf/sync_file.c +++ b/drivers/dma-buf/sync_file.c @@ -157,9 +157,15 @@ static int sync_file_set_fence(struct sync_file *sync_file, * we already own a new reference to the fence. For num_fence > 1 * we own the reference of the dma_fence_array creation. */ - if (num_fences == 1) { + + if (num_fences == 0) { + sync_file->fence = dma_fence_get_stub(); + kfree(fences); + + } else if (num_fences == 1) { sync_file->fence = fences[0]; kfree(fences); + } else { array = dma_fence_array_create(num_fences, fences, dma_fence_context_alloc(1), @@ -261,19 +267,6 @@ static struct sync_file *sync_file_merge(const char *name, struct sync_file *a, } } - if (index == 0) - fences[index++] = dma_fence_get_stub(); - - if (num_fences > index) { - struct dma_fence **tmp; - - /* Keep going even when reducing the size failed */ - tmp = krealloc_array(fences, index, sizeof(*fences), - GFP_KERNEL); - if (tmp) - fences = tmp; - } - if (sync_file_set_fence(sync_file, fences, index) < 0) goto err_put_fences; |