From e0a9f1fe206a66c3507ff8b7da56f9d1d1dbb9c4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Fri, 17 Jun 2022 10:35:25 +0200 Subject: [PATCH] dma-buf: deprecate DMABUF_SYSFS_STATS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: T.J. Mercier Link: https://patchwork.freedesktop.org/patch/msgid/20220617085702.4298-1-christian.koenig@amd.com --- drivers/dma-buf/Kconfig | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) 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 . + 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