From: Gustavo Padovan Date: Fri, 5 Aug 2016 13:39:34 +0000 (-0300) Subject: dma-buf/fence-array: add fence_is_array() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e1aaf311dbe82221910cc0e0809c988de210cc3c;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git dma-buf/fence-array: add fence_is_array() Add helper to check if fence is array. v2: Comments from Chris Wilson - remove ternary if from ops comparison - add EXPORT_SYMBOL(fence_array_ops) Cc: Chris Wilson Cc: Christian König Signed-off-by: Gustavo Padovan Reviewed-by: Chris Wilson Reviewed-by: Christian König Signed-off-by: Sumit Semwal --- diff --git a/drivers/dma-buf/fence-array.c b/drivers/dma-buf/fence-array.c index a8731c853da6..ee500226197b 100644 --- a/drivers/dma-buf/fence-array.c +++ b/drivers/dma-buf/fence-array.c @@ -99,6 +99,7 @@ const struct fence_ops fence_array_ops = { .wait = fence_default_wait, .release = fence_array_release, }; +EXPORT_SYMBOL(fence_array_ops); /** * fence_array_create - Create a custom fence array diff --git a/include/linux/fence-array.h b/include/linux/fence-array.h index 86baaa45567c..a44794e508df 100644 --- a/include/linux/fence-array.h +++ b/include/linux/fence-array.h @@ -51,6 +51,16 @@ struct fence_array { extern const struct fence_ops fence_array_ops; +/** + * fence_is_array - check if a fence is from the array subsclass + * + * Return true if it is a fence_array and false otherwise. + */ +static inline bool fence_is_array(struct fence *fence) +{ + return fence->ops == &fence_array_ops; +} + /** * to_fence_array - cast a fence to a fence_array * @fence: fence to cast to a fence_array