[U-Boot] [PATCH RFC V1 06/18] usb: gadget: config: fix unaligned access issues

[Marek Vasut]

Dear Troy Kisky,

Missing commit message :-(

> 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 f9163a8..a4cb5ad 100644
> --- a/drivers/usb/gadget/config.c
> +++ b/drivers/usb/gadget/config.c
> @@ -22,6 +22,7 @@
>   */
> 
>  #include <common.h>
> +#include <asm/unaligned.h>
>  #include <asm/errno.h>
>  #include <linux/list.h>
>  #include <linux/string.h>
> @@ -98,7 +99,8 @@ 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,
> @@ -112,7 +114,7 @@ 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;
>  }

Best regards,
Marek Vasut