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dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER
author
Geert Uytterhoeven
<geert@linux-m68k.org>
Thu, 2 Sep 2021 12:49:11 +0000
(14:49 +0200)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Sun, 26 Sep 2021 12:08:59 +0000
(14:08 +0200)
[ 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@linux-m68k.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link:
https://patchwork.freedesktop.org/patch/msgid/20210902124913.2698760-2-geert@linux-m68k.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/dma-buf/Kconfig
patch
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diff --git
a/drivers/dma-buf/Kconfig
b/drivers/dma-buf/Kconfig
index
4f8224a
..
3ca7de3
100644
(file)
--- 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