[U-Boot] [PATCH] usb: gadget: Fix data aborts during USB ethernet boot

[Joel Fernandes]

As seen on GCC 4.6 Linaro compiler, control_req buffer is not aligned
on 4 byte boundaray causing data aborts in eth_setup -> conf_buf
during dhcp boot over usb_ether. Fix the issue my aligning control_req
buffer to 4-byte boundary.

Tested on am335x_evm platform (beaglebone).
Applies on 2013.10-rc1 branch.

Cc: Tom Rini <trini at ti.com>
Signed-off-by: Joel Fernandes <joelf at ti.com>
---
 drivers/usb/gadget/ether.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 579893c..251d7b2 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -849,7 +849,7 @@ static struct usb_gadget_strings	stringtab = {
 };
 
 /*============================================================================*/
-static u8 control_req[USB_BUFSIZ];
+static u8 control_req[USB_BUFSIZ] __attribute__ ((aligned(4)));
 #if defined(CONFIG_USB_ETH_CDC) || defined(CONFIG_USB_ETH_RNDIS)
 static u8 status_req[STATUS_BYTECOUNT] __attribute__ ((aligned(4)));
 #endif
-- 
1.7.9.5