From: Stephen Rothwell sfr@canb.auug.org.au
[ Upstream commit f51778db088b2407ec177f2f4da0f6290602aa3f ]
After merging the drm-misc tree, linux-next build (arm multi_v7_defconfig) failed like this:
In file included from drivers/gpu/drm/nouveau/nouveau_ttm.c:26: include/linux/swiotlb.h: In function 'swiotlb_max_mapping_size': include/linux/swiotlb.h:99:9: error: 'SIZE_MAX' undeclared (first use in this function) 99 | return SIZE_MAX; | ^~~~~~~~ include/linux/swiotlb.h:7:1: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'? 6 | #include <linux/init.h> +++ |+#include <stdint.h> 7 | #include <linux/types.h> include/linux/swiotlb.h:99:9: note: each undeclared identifier is reported only once for each function it appears in 99 | return SIZE_MAX; | ^~~~~~~~
Caused by commit
abe420bfae52 ("swiotlb: Introduce swiotlb_max_mapping_size()")
but only exposed by commit "drm/nouveu: fix swiotlb include"
Fix it by including linux/limits.h as appropriate.
Fixes: abe420bfae52 ("swiotlb: Introduce swiotlb_max_mapping_size()") Signed-off-by: Stephen Rothwell sfr@canb.auug.org.au Link: https://lore.kernel.org/r/20201102124327.2f82b2a7@canb.auug.org.au Signed-off-by: Michael S. Tsirkin mst@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/swiotlb.h | 1 + 1 file changed, 1 insertion(+)
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index cde3dc18e21a2..0a8fced6aaec4 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -5,6 +5,7 @@ #include <linux/dma-direction.h> #include <linux/init.h> #include <linux/types.h> +#include <linux/limits.h>
struct device; struct page;