[Lima] [PATCH 2/2] drm/lima: include used header file explicitly

[Qiang Yu]

To prevent build fail on some platform which does
not have it in the include file chain.

Cc: Neil Armstrong <narmstrong at baylibre.com>
Suggested-by: Randy Dunlap <rdunlap at infradead.org>
Fixes: a1d2a6339961 ("drm/lima: driver for ARM Mali4xx GPUs")
Signed-off-by: Qiang Yu <yuq825 at gmail.com>
---
 drivers/gpu/drm/lima/lima_gem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
index 2d3cf96f6c58..1d69498bc17e 100644
--- a/drivers/gpu/drm/lima/lima_gem.c
+++ b/drivers/gpu/drm/lima/lima_gem.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0 OR MIT
 /* Copyright 2017-2019 Qiang Yu <yuq825 at gmail.com> */
 
+#include <linux/mm.h>
 #include <linux/sync_file.h>
 #include <linux/pfn_t.h>
 
-- 
2.17.1