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ar71xx: change the unaligned access hack to assume an alignment of 2 bytes, slightly improves performance and code size

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SVN-Revision: 34912
This commit is contained in:
Felix Fietkau 2012-12-28 21:30:24 +00:00
parent b41d96e8b7
commit 348dc70c8c
1 changed files with 4 additions and 4 deletions
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8
target/linux/ar71xx/patches-3.6/902-unaligned_access_hacks.patch
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@ -57,7 +57,7 @@
__be32 daddr; __be32 daddr;
/*The options start here. */ /*The options start here. */
-}; -};
+} __packed; +} __packed __attribute__((aligned(2)));
#ifdef __KERNEL__ #ifdef __KERNEL__
#include <linux/skbuff.h> #include <linux/skbuff.h>
@ -68,7 +68,7 @@
struct in6_addr saddr; struct in6_addr saddr;
struct in6_addr daddr; struct in6_addr daddr;
-}; -};
+} __packed; +} __packed __attribute__((aligned(2)));
#ifdef __KERNEL__ #ifdef __KERNEL__
/* /*
@ -79,7 +79,7 @@
__sum16 check; __sum16 check;
__be16 urg_ptr; __be16 urg_ptr;
-}; -};
+} __packed; +} __packed __attribute__((aligned(2)));
/* /*
* The union cast uses a gcc extension to avoid aliasing problems * The union cast uses a gcc extension to avoid aliasing problems
@ -90,7 +90,7 @@
__be16 len; __be16 len;
__sum16 check; __sum16 check;
-}; -};
+} __packed; +} __packed __attribute__((aligned(2)));
/* UDP socket options */ /* UDP socket options */
#define UDP_CORK 1 /* Never send partially complete segments */ #define UDP_CORK 1 /* Never send partially complete segments */