From: Phong Tran <tranmanphong@xxxxxxxxx>
commit 440868661f36071886ed360d91de83bd67c73b4f upstream.
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@xxxxxxxxx>
Reported-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Link: https://github.com/ClangBuiltLinux/linux/issues/460
Suggested-by: David Laight <David.Laight@xxxxxxxxxx>
Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
[robh: fix up whitespace]
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/of.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -220,8 +220,8 @@ extern struct device_node *of_find_all_n
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;
}
