From: Dave Airlie <airlied@xxxxxxxxxx> These are just alloc and fdget interfaces needed by the drm sync objects code. Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx> --- drivers/dma-buf/sync_file.c | 21 +++++++++++++++++++-- include/linux/sync_file.h | 3 ++- 2 files changed, 21 insertions(+), 3 deletions(-) diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c index b33af9d..153bf03 100644 --- a/drivers/dma-buf/sync_file.c +++ b/drivers/dma-buf/sync_file.c @@ -46,7 +46,16 @@ int sync_file_validate_type_flags(uint32_t type, uint32_t flags) } EXPORT_SYMBOL(sync_file_validate_type_flags); -static struct sync_file *sync_file_alloc(uint32_t type, uint32_t flags) +/** + * sync_file_alloc() - allocate an unfenced sync file + * @type: type of sync file object + * @flags: creation flags for sync file object + * + * Creates a sync_file. + * The sync_file can be released with fput(sync_file->file). + * Returns the sync_file or NULL in case of error. + */ +struct sync_file *sync_file_alloc(uint32_t type, uint32_t flags) { struct sync_file *sync_file; int ret; @@ -78,6 +87,7 @@ static struct sync_file *sync_file_alloc(uint32_t type, uint32_t flags) kfree(sync_file); return NULL; } +EXPORT_SYMBOL(sync_file_alloc); static void fence_check_cb_func(struct dma_fence *f, struct dma_fence_cb *cb) { @@ -118,7 +128,13 @@ struct sync_file *sync_file_create(struct dma_fence *fence, } EXPORT_SYMBOL(sync_file_create); -static struct sync_file *sync_file_fdget(int fd) +/** + * sync_file_fdget - get a reference to the file and return sync_file. + * @fd - file descriptor pointing at a sync_file. + * + * Returns the corresponding sync_file object. + */ +struct sync_file *sync_file_fdget(int fd) { struct file *file = fget(fd); @@ -134,6 +150,7 @@ static struct sync_file *sync_file_fdget(int fd) fput(file); return NULL; } +EXPORT_SYMBOL(sync_file_fdget); /** * sync_file_get_fence - get the fence related to the sync_file fd diff --git a/include/linux/sync_file.h b/include/linux/sync_file.h index ede4182..e683dd1 100644 --- a/include/linux/sync_file.h +++ b/include/linux/sync_file.h @@ -54,7 +54,8 @@ struct sync_file { #define POLL_ENABLED DMA_FENCE_FLAG_USER_BITS int sync_file_validate_type_flags(uint32_t type, uint32_t flags); +struct sync_file *sync_file_alloc(uint32_t type, uint32_t flags); struct sync_file *sync_file_create(struct dma_fence *fence, uint32_t type, uint32_t flags); struct dma_fence *sync_file_get_fence(int fd); - +struct sync_file *sync_file_fdget(int fd); #endif /* _LINUX_SYNC_H */ -- 2.9.3 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel