lkml.org 
[lkml]   [2012]   [Oct]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] usb: gadget: ncm: correct endianess conversion
Hi Sebastian,
I was trying to keep 2 tabs but checkpatch didn't accept long line
that's why I killed extra tab.

>How does it work? Is the test on host side not strict enough?
The host part(cdc_ncm) does not check this field.
However I agree that at least on device side this should be corrected.

Felipe, do you want me to send another patch or resend previous one
with this correction?

Thanks,
-- dmytro

On Wed, Oct 24, 2012 at 3:58 PM, Sebastian Andrzej Siewior
<sebastian@breakpoint.cc> wrote:
> 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


\
 
 \ /
  Last update: 2012-10-28 19:21    [from the cache]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and my Meterkast|Read the blog