This is a note to let you know that I've just added the patch titled
dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER
to the 5.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dma-buf-dmabuf_move_notify-should-depend-on-dma_shar.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8975d17a49166c20fccc56b9f3423e920b15b2cd
Author: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Date: Thu Sep 2 14:49:11 2021 +0200
dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER
[ Upstream commit c4f3a3460a5daebc772d9263500e4099b11e7300 ]
Move notify between drivers is an option of DMA-BUF. Enabling
DMABUF_MOVE_NOTIFY without DMA_SHARED_BUFFER does not have any impact,
as drivers/dma-buf/ is not entered during the build when
DMA_SHARED_BUFFER is disabled.
Fixes: bb42df4662a44765 ("dma-buf: add dynamic DMA-buf handling v15")
Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20210902124913.2698760-2-geert@xxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig
index 4e16c71c24b7..6e13cc941cd2 100644
--- a/drivers/dma-buf/Kconfig
+++ b/drivers/dma-buf/Kconfig
@@ -42,6 +42,7 @@ config UDMABUF
config DMABUF_MOVE_NOTIFY
bool "Move notify between drivers (EXPERIMENTAL)"
default n
+ depends on DMA_SHARED_BUFFER
help
Don't pin buffers if the dynamic DMA-buf interface is available on
both the exporter as well as the importer. This fixes a security
