This is caused by c99d667e8527 ("cnic : Cleanup CONFIG_IPV6 & VLAN check") So I'm not really sure what the fix for this is. CNIC will properly only support [m] or [n] when IPV6 is compiled as a module, but if you set SCSI_BNX2X_FCOE or SCSI_BNX2_ISCSI to be in built, there is a 'select CNIC' that forces CNIC to be inbuilt, even though this is not supported by Kconfig. I was under the assumption that select will not forcibly change m to inbuilt (or perhaps I'm missing some syntax suboption ?) This is still fixable in SCSI_BNX2_ISCSI using the same logic used in the above mentioned commit, but not so in SCSI_BNX2X_FCOE where it causes a recursive dependency error (thought it is fixing the issue nevertheless), and none of the other solutions I tried seemed to work either. Looking at previous code, the earlier approach used to just disable ipv6 code in such a situation. -Anish ________________________________________ From: Jim Davis [jim.epost@xxxxxxxxx] Sent: Tuesday, September 09, 2014 7:38 AM To: Stephen Rothwell; linux-next; linux-kernel; Anish Bhatt; mchan@xxxxxxxxxxxx; David S. Miller; netdev Subject: randconfig build error with next-20140909, in drivers/net/ethernet/broadcom/cnic.c Building with the attached random configuration file, drivers/built-in.o: In function `cnic_get_v6_route': cnic.c:(.text+0x3a4168): undefined reference to `ip6_route_output' make: *** [vmlinux] Error 1 -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html