randconfig build error with next-20140502, in drivers/net/hyperv/netvsc_drv.c

[Haiyang Zhang]

> -----Original Message-----
> From: KY Srinivasan
> Sent: Friday, May 2, 2014 11:00 AM
> To: Haiyang Zhang; Jim Davis; Stephen Rothwell; linux-next; linux-kernel;
> devel at linuxdriverproject.org; netdev
> Subject: RE: randconfig build error with next-20140502, in
> drivers/net/hyperv/netvsc_drv.c
> 
> 
> 
> > -----Original Message-----
> > From: Haiyang Zhang
> > Sent: Friday, May 2, 2014 7:42 AM
> > To: Jim Davis; Stephen Rothwell; linux-next; linux-kernel; KY
> Srinivasan;
> > devel at linuxdriverproject.org; netdev
> > Subject: RE: randconfig build error with next-20140502, in
> > drivers/net/hyperv/netvsc_drv.c
> >
> >
> >
> > > -----Original Message-----
> > > From: Jim Davis [mailto:jim.epost at gmail.com]
> > > Sent: Friday, May 2, 2014 9:56 AM
> > > To: Stephen Rothwell; linux-next; linux-kernel; KY Srinivasan;
> Haiyang
> > > Zhang; devel at linuxdriverproject.org; netdev
> > > Subject: randconfig build error with next-20140502, in
> > > drivers/net/hyperv/netvsc_drv.c
> > >
> > > Building with the attached random configuration file,
> > >
> > > drivers/net/hyperv/netvsc_drv.c: In function ‘netvsc_recv_callback’:
> > > drivers/net/hyperv/netvsc_drv.c:648:11: error: ‘struct net_device’
> has
> > > no member  named ‘real_num_rx_queues’
> > >         net->real_num_rx_queues);
> > >            ^
> > > In file included from drivers/net/hyperv/netvsc_drv.c:26:0:
> > > drivers/net/hyperv/netvsc_drv.c: In function ‘netvsc_probe’:
> > > drivers/net/hyperv/netvsc_drv.c:832:32: error: ‘struct net_device’
> has
> > > no member named ‘real_num_rx_queues’
> > >     net->real_num_tx_queues, net->real_num_rx_queues);
> > >                                 ^
> > > include/linux/device.h:1080:58: note: in definition of macro
> ‘dev_info’
> > >  #define dev_info(dev, fmt, arg...) _dev_info(dev, fmt, ##arg)
> > >                                                           ^
> > > make[3]: *** [drivers/net/hyperv/netvsc_drv.o] Error 1
> >
> > real_num_rx_queues is defined in "include/linux/netdevice.h":
> > It requires CONFIG_SYSFS flag, which is enabled by default, but not
> set in
> > your config file.
> >
> > Could you use default config and add hyperv drivers, then try again?
> 
> Haiyang,
> 
> That is the point - the code must compile correctly for all possible
> configurations.
> You will want to protect the dependencies appropriately.
> 
OK, I'll look into this.

Thanks,
- Haiyang