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dma-buf: deprecate DMABUF_SYSFS_STATS

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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
This commit is contained in:
Christian König 2022-06-17 10:35:25 +02:00
parent 009a3a5279
commit e0a9f1fe20
1 changed files with 5 additions and 1 deletions
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6
drivers/dma-buf/Kconfig
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@ -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