drm/nouveau/ttm: Add limits.h

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@ffwll.ch>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 2bf36229dd571f647da3ebf9419f871d71413b22..a37bc3d7b38b3b504543f8c09aca48c435bb2b60 100644 (file)
--- 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"