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authorPhong Tran <tranmanphong@gmail.com>2019-04-30 17:56:24 +0300
committerRob Herring <robh@kernel.org>2019-05-01 22:26:36 +0300
commit440868661f36071886ed360d91de83bd67c73b4f (patch)
tree458324b634f0f15bd140ff3bcfd3b88425768f87 /include/linux/of.h
parent8e94fd36220cb541ab536214bd9993035251cd5c (diff)
downloadlinux-440868661f36071886ed360d91de83bd67c73b4f.tar.xz
of: fix clang -Wunsequenced for be32_to_cpu()
Now, make the loop explicit to avoid clang warning. ./include/linux/of.h:238:37: warning: multiple unsequenced modifications to 'cell' [-Wunsequenced] r = (r << 32) | be32_to_cpu(*(cell++)); ^~ ./include/linux/byteorder/generic.h:95:21: note: expanded from macro 'be32_to_cpu' ^ ./include/uapi/linux/byteorder/little_endian.h:40:59: note: expanded from macro '__be32_to_cpu' ^ ./include/uapi/linux/swab.h:118:21: note: expanded from macro '__swab32' ___constant_swab32(x) : \ ^ ./include/uapi/linux/swab.h:18:12: note: expanded from macro '___constant_swab32' (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \ ^ Signed-off-by: Phong Tran <tranmanphong@gmail.com> Reported-by: Nick Desaulniers <ndesaulniers@google.com> Link: https://github.com/ClangBuiltLinux/linux/issues/460 Suggested-by: David Laight <David.Laight@ACULAB.COM> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Cc: stable@vger.kernel.org [robh: fix up whitespace] Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'include/linux/of.h')
-rw-r--r--include/linux/of.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/of.h b/include/linux/of.h
index 28797e1a9982..0cf857012f11 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -234,8 +234,8 @@ extern struct device_node *of_find_all_nodes(struct device_node *prev);
static inline u64 of_read_number(const __be32 *cell, int size)
{
u64 r = 0;
- while (size--)
- r = (r << 32) | be32_to_cpu(*(cell++));
+ for (; size--; cell++)
+ r = (r << 32) | be32_to_cpu(*cell);
return r;
}