Re: [PATCH 1/1] smsc95xx: add FLAG_POINTTOPOINT flag for driver_info

[Xiao Jiang]

Ben Hutchings wrote:
> On Wed, 2012-05-16 at 16:01 +0800, jgq516@xxxxxxxxx wrote:
>   
> > From: Xiao Jiang <jgq516@xxxxxxxxx>
> >
> > commit c26134 introduced FLAG_POINTTOPOINT flag for USB ethernet devices
> > which possibly use "usb%d" names, add this flag to make sure pandaboard
> > can mount nfs with smsc95xx NIC.
> >     
>
> These are normal Ethernet interfaces, whereas FLAG_POINTTOPOINT is for
> devices that use non-standard short physical links.
>
>   
This flag is used by some usb NICs, I amn't familiar with those cards 
perhaps those are
non-standard short physical links as you said.
But smsc95xx seems need this flag to use "usb%d" name, at least my 
pandaboard can't
mount nfs with eth0 name, is there other ways to avoid nfs issue with 
keep smsc95xx's
name unchange? thanks.

-bash-3.2$ grep FLAG_POINTTOPOINT * -r
drivers/net/usb/zaurus.c:    .flags =    FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
drivers/net/usb/zaurus.c:    .flags =    FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
drivers/net/usb/zaurus.c:    .flags =    FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
drivers/net/usb/zaurus.c:    .flags =    FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
drivers/net/usb/cdc_ncm.c:    .flags = FLAG_POINTTOPOINT | 
FLAG_NO_SETINT | FLAG_MULTI_PACKET,
drivers/net/usb/gl620a.c:    .flags =    FLAG_POINTTOPOINT | 
FLAG_FRAMING_GL | FLAG_NO_SETINT,
drivers/net/usb/plusb.c:    .flags =    FLAG_POINTTOPOINT | FLAG_NO_SETINT,
drivers/net/usb/usbnet.c:            ((dev->driver_info->flags & 
FLAG_POINTTOPOINT) == 0 ||
drivers/net/usb/cdc_subset.c:    .flags       = FLAG_POINTTOPOINT,
drivers/net/usb/cdc_subset.c:    .flags       = FLAG_POINTTOPOINT,
drivers/net/usb/cdc_subset.c:    .flags       = FLAG_POINTTOPOINT,
drivers/net/usb/cdc_subset.c:    .flags = FLAG_POINTTOPOINT,
drivers/net/usb/cdc_subset.c:    .flags = FLAG_POINTTOPOINT,
drivers/net/usb/cdc_subset.c:    .flags = FLAG_POINTTOPOINT,
drivers/net/usb/cdc_subset.c:    .flags = FLAG_POINTTOPOINT,
drivers/net/usb/cdc_subset.c:    .flags = FLAG_POINTTOPOINT,
drivers/net/usb/cdc_eem.c:    .flags =    FLAG_ETHER | FLAG_POINTTOPOINT,
drivers/net/usb/rndis_host.c:    .flags =    FLAG_ETHER | 
FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT,
drivers/net/usb/rndis_host.c:    .flags =    FLAG_ETHER | 
FLAG_POINTTOPOINT | FLAG_FRAMING_RN | FLAG_NO_SETINT,
drivers/net/usb/cdc_ether.c:    .flags =    FLAG_ETHER | FLAG_POINTTOPOINT,
drivers/net/usb/net1080.c:    .flags =    FLAG_POINTTOPOINT | 
FLAG_FRAMING_NC,
include/linux/usb/usbnet.h:#define FLAG_POINTTOPOINT 0x1000    /* 
possibly use "usb%d" names */

Regards,
Xiao
> Ben.
>
>   
> > Signed-off-by: Xiao Jiang <jgq516@xxxxxxxxx>
> > ---
> >  drivers/net/usb/smsc95xx.c |    3 ++-
> >  1 files changed, 2 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
> > index 94ae669..e158288 100644
> > --- a/drivers/net/usb/smsc95xx.c
> > +++ b/drivers/net/usb/smsc95xx.c
> > @@ -1192,7 +1192,8 @@ static const struct driver_info smsc95xx_info = {
> >  	.rx_fixup	= smsc95xx_rx_fixup,
> >  	.tx_fixup	= smsc95xx_tx_fixup,
> >  	.status		= smsc95xx_status,
> > -	.flags		= FLAG_ETHER | FLAG_SEND_ZLP | FLAG_LINK_INTR,
> > +	.flags		= FLAG_ETHER | FLAG_POINTTOPOINT | FLAG_SEND_ZLP |
> > +			  FLAG_LINK_INTR,
> >  };
> >  
> >  static const struct usb_device_id products[] = {
> >     
>
>   

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