Fix compiler warning
In file included from ubifs.h:2137:0,
from ubifs.c:26:
misc.h: In function 'ubifs_idx_key':
misc.h:263:26: warning: dereferencing type-punned pointer will break
strict-aliasing rules
seen with gcc version 4.5.1 (Sourcery G++ Lite 2010.09-50).
No functional change.
CC: Stefan Roese <s...@denx.de>
Signed-off-by: Dirk Behme <dirk.be...@googlemail.com>
---
This was found building 'omap3_pandora' with the above tool chain.
Note: Compiling the ubifs (make fs/ubifs) in a recent mainline kernel
(2.6.37-rc7) with the same tool chain doesn't give this warning.
There seems to be no difference in the recent ubifs kernel sources
regarding this piece of code (structs ubifs_idx_node, ubifs_branch
and the function ubifs_idx_key in misc.h), though.
So I'm not sure why this warning is in U-Boot but not in the kernel.
Different compiler options?
fs/ubifs/misc.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Index: u-boot.git/fs/ubifs/misc.h
===================================================================
--- u-boot.git.orig/fs/ubifs/misc.h
+++ u-boot.git/fs/ubifs/misc.h
@@ -260,7 +260,8 @@ struct ubifs_branch *ubifs_idx_branch(co
static inline void *ubifs_idx_key(const struct ubifs_info *c,
const struct ubifs_idx_node *idx)
{
- return (void *)((struct ubifs_branch *)idx->branches)->key;
+ const __u8 *branch = idx->branches;
+ return (void *)((struct ubifs_branch *)branch)->key;
}
/**
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