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dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER

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[ Upstream commit c4f3a3460a ]

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: bb42df4662 ("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>
This commit is contained in:
Geert Uytterhoeven 2021-09-02 14:49:11 +02:00 committed by Greg Kroah-Hartman
parent b9a1526d51
commit ca907291e1
1 changed files with 1 additions and 0 deletions
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1
drivers/dma-buf/Kconfig
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@ -42,6 +42,7 @@ config UDMABUF
config DMABUF_MOVE_NOTIFY config DMABUF_MOVE_NOTIFY
bool "Move notify between drivers (EXPERIMENTAL)" bool "Move notify between drivers (EXPERIMENTAL)"
default n default n
depends on DMA_SHARED_BUFFER
help help
Don't pin buffers if the dynamic DMA-buf interface is available on 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 both the exporter as well as the importer. This fixes a security