Messages in this thread | | | Date | Wed, 24 Oct 2012 15:58:34 +0200 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PATCH] usb: gadget: ncm: correct endianess conversion |
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On Mon, Oct 08, 2012 at 11:59:03PM +0300, Dmytro Milinevskyy wrote: > Convert USB descriptor's fields to CPU byte order before using locally in USB NCM gadget driver. > Tested on MIPS32 big-endian device. > > Signed-off-by: Dmytro Milinevskyy <milinevskyy@gmail.com> > --- > drivers/usb/gadget/f_ncm.c | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) > > diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c > index b651b52..fce45ab 100644 > --- a/drivers/usb/gadget/f_ncm.c > +++ b/drivers/usb/gadget/f_ncm.c > @@ -869,11 +869,11 @@ static struct sk_buff *ncm_wrap_ntb(struct gether *port, > struct sk_buff *skb2; > int ncb_len = 0; > __le16 *tmp; > - int div = ntb_parameters.wNdpInDivisor; > - int rem = ntb_parameters.wNdpInPayloadRemainder; > - int pad; > - int ndp_align = ntb_parameters.wNdpInAlignment; > - int ndp_pad; > + int div = le16_to_cpu(ntb_parameters.wNdpInDivisor); > + int rem = le16_to_cpu(ntb_parameters.wNdpInPayloadRemainder); > + int pad; > + int ndp_align = le16_to_cpu(ntb_parameters.wNdpInAlignment); > + int ndp_pad;
It would be nice to keep the two tabs between int and variable. One question: In ntb_parameters the member wLength is 16bit and not using cpu_to_le16(). How does it work? Is the test on host side not strict enough?
> unsigned max_size = ncm->port.fixed_in_len; > struct ndp_parser_opts *opts = ncm->parser_opts; > unsigned crc_len = ncm->is_crc ? sizeof(uint32_t) : 0;
Sebastian
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