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@linuxdriverproject.org; netdev
Subject: RE: randconfig build error with next-20140502, in
drivers/net/hyperv/netvsc_drv.c

quoted

-----Original Message-----
From: Haiyang Zhang
Sent: Friday, May 2, 2014 7:42 AM
To: Jim Davis; Stephen Rothwell; linux-next; linux-kernel; KY

Srinivasan;

quoted

devel@linuxdriverproject.org; netdev
Subject: RE: randconfig build error with next-20140502, in
drivers/net/hyperv/netvsc_drv.c

quoted

-----Original Message-----
From: Jim Davis [mailto:jim.epost@gmail.com]
Sent: Friday, May 2, 2014 9:56 AM
To: Stephen Rothwell; linux-next; linux-kernel; KY Srinivasan;

Haiyang

quoted

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Zhang; devel@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

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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

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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’

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 #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

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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