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| author |   Phong Tran <tranmanphong@gmail.com> | 2019-04-30 21:56:24 +0700 |
|---|---|---|
| committer |   Rob Herring <robh@kernel.org> | 2019-05-01 14:26:36 -0500 |
| commit | 440868661f36071886ed360d91de83bd67c73b4f (patch) | |
| tree | 458324b634f0f15bd140ff3bcfd3b88425768f87 /include/linux/of.h | |
| parent | of/device.c: fix the wrong comments (diff) | |
| download | linux-dev-440868661f36071886ed360d91de83bd67c73b4f.tar.xz linux-dev-440868661f36071886ed360d91de83bd67c73b4f.zip | |
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.h | 4 |
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; } |