From f82aab2d521e4c1d4f9f98450b4a9a8abeaff1c4 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 7 Aug 2018 19:36:47 +0100
Subject: dma-buf: Remove requirement for ops->map() from dma_buf_export
Git-commit: f82aab2d521e4c1d4f9f98450b4a9a8abeaff1c4
Patch-mainline: v4.20-rc1
References: bsc#1113956

Since commit 9ea0dfbf972 ("dma-buf: make map_atomic and map function
pointers optional"), the core provides the no-op functions when map and
map_atomic are not provided, so we no longer need assert that are
supplied by a dma-buf exporter.

Fixes: 09ea0dfbf972 ("dma-buf: make map_atomic and map function pointers optional")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180807183647.22626-1-chris@chris-wilson.co.uk
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/dma-buf/dma-buf.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -406,7 +406,6 @@ struct dma_buf *dma_buf_export(const str
 			  || !exp_info->ops->unmap_dma_buf
 			  || !exp_info->ops->release
 			  || !exp_info->ops->map_atomic
-			  || !exp_info->ops->map
 			  || !exp_info->ops->mmap)) {
 		return ERR_PTR(-EINVAL);
 	}