commit 0d0d9c150c046cbd3e507adcfa2d78db82f1f452
author Scott Wood <scottwood@freescale.com> Mon Oct 01 14:20:52 2007 -0500
committer David S. Miller <davem@sunset.davemloft.net> Wed Oct 10 16:54:02 2007 -0700
tree 9061d687f765b7cd831d8a6dce83ae925a58d994
parent c6565331b7162a8348c70c37b4c33bedb6d4f02d

fs_enet: Align receive buffers.

At least some hardware driven by this driver needs receive buffers
to be aligned on a 16-byte boundary.  This usually happens by chance,
but it breaks if slab debugging is enabled.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/fs_enet/fs_enet.h

diff --git a/drivers/net/fs_enet/fs_enet.h b/drivers/net/fs_enet/fs_enet.h
index fbe2087..85571e4 100644
--- a/drivers/net/fs_enet/fs_enet.h
+++ b/drivers/net/fs_enet/fs_enet.h
@@ -82,7 +82,8 @@
 /* Must be a multiple of 32 (to cover both FEC & FCC) */
 #define PKT_MAXBLR_SIZE		((PKT_MAXBUF_SIZE + 31) & ~31)
 /* This is needed so that invalidate_xxx wont invalidate too much */
-#define ENET_RX_FRSIZE		L1_CACHE_ALIGN(PKT_MAXBUF_SIZE)
+#define ENET_RX_ALIGN  16
+#define ENET_RX_FRSIZE L1_CACHE_ALIGN(PKT_MAXBUF_SIZE + ENET_RX_ALIGN - 1)
 
 struct fs_enet_mii_bus {
 	struct list_head list;