| From 8975d17a49166c20fccc56b9f3423e920b15b2cd Mon Sep 17 00:00:00 2001 |
| From: Sasha Levin <sashal@kernel.org> |
| Date: Thu, 2 Sep 2021 14:49:11 +0200 |
| Subject: dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER |
| |
| From: Geert Uytterhoeven <geert@linux-m68k.org> |
| |
| [ 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 | 1 + |
| 1 file changed, 1 insertion(+) |
| |
| 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 |
| -- |
| 2.33.0 |
| |