[U-Boot] [PATCH V2 06/20] usb: gadget: config: fix unaligned access issues

[Marek Vasut]

Dear Troy Kisky,

> On 8/1/2013 3:55 PM, Marek Vasut wrote:
> > Dear Troy Kisky,
> > 
> >> On 8/1/2013 3:18 PM, Troy Kisky wrote:
> >>> Signed-off-by: Troy Kisky <troy.kisky at boundarydevices.com>
> >>> ---
> >>> 
> >>>    drivers/usb/gadget/config.c | 6 ++++--
> >>>    1 file changed, 4 insertions(+), 2 deletions(-)
> >>> 
> >>> diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c
> >>> index f563afe..014a679 100644
> >>> --- a/drivers/usb/gadget/config.c
> >>> +++ b/drivers/usb/gadget/config.c
> >>> @@ -10,6 +10,7 @@
> >>> 
> >>>     */
> >>>    
> >>>    #include <common.h>
> >>> 
> >>> +#include <asm/unaligned.h>
> >>> 
> >>>    #include <asm/errno.h>
> >>>    #include <linux/list.h>
> >>>    #include <linux/string.h>
> >>> 
> >>> @@ -86,7 +87,8 @@ int usb_gadget_config_buf(
> >>> 
> >>>    	/* config descriptor first */
> >>>    	if (length < USB_DT_CONFIG_SIZE || !desc)
> >>>    	
> >>>    		return -EINVAL;
> >>> 
> >>> -	*cp = *config;
> >>> +	/* config need not be aligned */
> >>> +	memcpy(cp, config, sizeof(*cp));
> >>> 
> >>>    	/* then interface/endpoint/class/vendor/... */
> >>>    	len = usb_descriptor_fillbuf(USB_DT_CONFIG_SIZE + (u8 *)buf,
> >>> 
> >>> @@ -100,7 +102,7 @@ int usb_gadget_config_buf(
> >>> 
> >>>    	/* patch up the config descriptor */
> >>>    	cp->bLength = USB_DT_CONFIG_SIZE;
> >>>    	cp->bDescriptorType = USB_DT_CONFIG;
> >>> 
> >>> -	cp->wTotalLength = cpu_to_le16(len);
> >>> +	put_unaligned_le16(len, &cp->wTotalLength);
> >>> 
> >>>    	cp->bmAttributes |= USB_CONFIG_ATT_ONE;
> >>>    	return len;
> >>>    
> >>>    }
> >> 
> >> Sorry folks, I forgot to delete old patches when I rebased to put
> >> Stefano patches together, please ignore this one.
> > 
> > Repost the series please, this is really hard to review.
> > 
> > Best regards,
> > Marek Vasut
> 
> Yes, will do a V3 to clear things up.
> 
> Troy

Thanks a lot!

Best regards,
Marek Vasut