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[ Upstream commit19d6634d87] Add unlocked variant of dma_buf_map/unmap_attachment() that will be used by drivers that don't take the reservation lock explicitly. Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221017172229.42269-3-dmitry.osipenko@collabora.com Stable-dep-of:a2cb9cd6a3("misc: fastrpc: Fix incorrect DMA mapping unmap request") Signed-off-by: Sasha Levin <sashal@kernel.org>