summaryrefslogtreecommitdiff
path: root/target/linux/brcm63xx/patches-3.14/803-jffs2-work-around-unaligned-accesses-failing-on-bcm6.patch
blob: 8b603e8b66c6f1a3922e3604b6625e07696ad3e8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
From ff3409ab17d56450943364ba49a16960e3cdda9b Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Sun, 6 Apr 2014 22:33:16 +0200
Subject: [RFC] jffs2: work around unaligned accesses failing on bcm63xx/smp

Unligned memcpy_fromio randomly fails with an unaligned dst. Work around
it by ensuring we are always doing aligned copies.

Should fix filename corruption in jffs2 with SMP.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
 fs/jffs2/nodelist.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/jffs2/nodelist.h
+++ b/fs/jffs2/nodelist.h
@@ -255,7 +255,7 @@ struct jffs2_full_dirent
 	uint32_t ino; /* == zero for unlink */
 	unsigned int nhash;
 	unsigned char type;
-	unsigned char name[0];
+	unsigned char name[0] __attribute__((aligned((sizeof(long)))));
 };
 
 /*