u-boot/include/linux/usb
Heiko Schocher b37c4a2baa usb: fix unaligned access in device_qual()
while playing with dfu, I tapped in an unaligned access
when doing on the host side a "lsusb -d [vendornr]: -v"
I get on the board:

GADGET DRIVER: usb_dnl_dfu
data abort

    MAYBE you should read doc/README.arm-unaligned-accesses

pc : [<8ff71db8>]          lr : [<8ff75aec>]
sp : 8ef40d18  ip : 00000005     fp : 00000000
r10: 00000000  r9 : 47401410     r8 : 8ef40f38
r7 : 8ef4aae8  r6 : 0000000a     r5 : 8ef4ab28  r4 : 8ef4ab80
r3 : 0000000a  r2 : 00000006     r1 : 00000006  r0 : 8ef4aae8
Flags: Nzcv  IRQs off  FIQs on  Mode SVC_32
Resetting CPU ...

reason is that in the "struct usb_composite_dev" the
"struct usb_device_descriptor desc;" is on an odd address,
and this struct gets accessed in
drivers/usb/gadget/composite.c device_qual()

Fix it, by align this var "struct desc" fix to an aligned
address.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Samuel Egli <samuel.egli@siemens.com>
2013-06-30 18:41:08 +02:00
..
cdc.h USB: Add USB RNDIS gadget protocol 2011-02-19 20:32:37 +01:00
ch9.h usb: Use get_unaligned() in usb_endpoint_maxp() for wMaxPacketSize 2013-06-12 22:22:51 +02:00
composite.h usb: fix unaligned access in device_qual() 2013-06-30 18:41:08 +02:00
gadget.h Consolidate bool type 2013-04-01 16:33:52 -04:00
musb.h musb-new: port of Linux musb driver 2012-11-20 00:16:06 +01:00