linux-kernel - RE: randconfig build error with next-20140502, in drivers/net/hyperv/netvsc

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Message-ID: <9847b18e41ed493daa61a1b5a9c1b7e8@DFM-DB3MBX15-06.exchange.corp.microsoft.com>
Date:	Fri, 2 May 2014 15:25:56 +0000
From:	Haiyang Zhang <haiyangz@...rosoft.com>
To:	KY Srinivasan <kys@...rosoft.com>, Jim Davis <jim.epost@...il.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next <linux-next@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	netdev <netdev@...r.kernel.org>
Subject: RE: randconfig build error with next-20140502, in
 drivers/net/hyperv/netvsc_drv.c



> -----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@...uxdriverproject.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@...uxdriverproject.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@...il.com]
> > > Sent: Friday, May 2, 2014 9:56 AM
> > > To: Stephen Rothwell; linux-next; linux-kernel; KY Srinivasan;
> Haiyang
> > > Zhang; devel@...uxdriverproject.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