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authorChristian König <christian.koenig@amd.com>2022-06-17 11:35:25 +0300
committerChristian König <christian.koenig@amd.com>2022-06-23 11:51:43 +0300
commite0a9f1fe206a66c3507ff8b7da56f9d1d1dbb9c4 (patch)
treec79586dcc062ef91b01d9079c398224ae3bbf08a /drivers/dma-buf/Kconfig
parent009a3a52791f31c57d755a73f6bc66fbdd8bd76c (diff)
downloadlinux-e0a9f1fe206a66c3507ff8b7da56f9d1d1dbb9c4.tar.xz
dma-buf: deprecate DMABUF_SYSFS_STATS
Add a warning that this UAPI wasn't such a good idea and shouldn't be used by anybody. That should give us a better chance to remove it at some point and prevents others from running into the same issues. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: T.J. Mercier <tjmercier@google.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220617085702.4298-1-christian.koenig@amd.com
Diffstat (limited to 'drivers/dma-buf/Kconfig')
-rw-r--r--drivers/dma-buf/Kconfig6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
index 541efe01abc7..e4dc53a36428 100644
--- a/drivers/dma-buf/Kconfig
+++ b/drivers/dma-buf/Kconfig
@@ -75,7 +75,7 @@ menuconfig DMABUF_HEAPS
between drivers.
menuconfig DMABUF_SYSFS_STATS
- bool "DMA-BUF sysfs statistics"
+ bool "DMA-BUF sysfs statistics (DEPRECATED)"
depends on DMA_SHARED_BUFFER
help
Choose this option to enable DMA-BUF sysfs statistics
@@ -85,6 +85,10 @@ menuconfig DMABUF_SYSFS_STATS
statistics for the DMA-BUF with the unique inode number
<inode_number>.
+ This option is deprecated and should sooner or later be removed.
+ Android is the only user of this and it turned out that this resulted
+ in quite some performance problems.
+
source "drivers/dma-buf/heaps/Kconfig"
endmenu