Hi all,
After merging the drm-misc tree, today's 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
4dbafbd30aef ("drm/nouveu: fix swiotlb include")
I applied the following fix for today:
From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Mon, 2 Nov 2020 12:34:57 +1100
Subject: [PATCH] swiotlb: using SIZE_MAX needs limits.h included
Fixes: abe420bfae52 ("swiotlb: Introduce swiotlb_max_mapping_size()")
Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
include/linux/swiotlb.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 513913ff7486..ed9de7855d3b 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -5,6 +5,9 @@
#include <linux/dma-direction.h>
#include <linux/init.h>
#include <linux/types.h>
+#ifndef CONFIG_SWIOTLB
+#include <linux/limits.h>
+#endif
struct device;
struct page;
--
2.28.0
--
Cheers,
Stephen Rothwell
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