[PATCH] drm/nouveau/ttm: Add limits.h

[Maxime Ripard]

It seems that a recent commit broke the nouveau compilation when swiotlb is
disabled (which is the case on our ARM defconfig for example).

Daniel says

"""
Since the proper fix is maybe stuck in the usual "drm abuses swiotlb
internals" bikeshed, maybe best if we push a fix to including limits.h
in nouveau and call it done?
"""

So let's go down the simplest path to fix our build, and goes back to it
later if needed.

Link: https://patchwork.freedesktop.org/patch/397835/
Fixes: 4dbafbd30aef ("drm/nouveu: fix swiotlb include")
Acked-by: Daniel Vetter <daniel at ffwll.ch>
Signed-off-by: Maxime Ripard <maxime at cerno.tech>
---
 drivers/gpu/drm/nouveau/nouveau_ttm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 2bf36229dd57..a37bc3d7b38b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -23,6 +23,7 @@
  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/limits.h>
 #include <linux/swiotlb.h>
 
 #include "nouveau_drv.h"
-- 
2.28.0