• Arnd Bergmann's avatar
    RDMA/qedr: fix build error without ipv6 · bd491d2a
    Arnd Bergmann authored
    When CONFIG_IPV6 disabled, we run into a link error:
    
    drivers/infiniband/hw/qedr/qedr_iw_cm.o: In function `qedr_addr6_resolve.isra.3':
    qedr_iw_cm.c:(.text+0x4e0): undefined reference to `ip6_route_output_flags'
    
    The ipv6 handling code is obviously not needed here, so this
    adds a compile-time check for the Kconfig symbol in all three
    places in the code that decide between ipv4 and ipv6.
    
    We don't have to worry about a link error wtih QEDR=y/IPV6=m, as
    that configuration is already prohibited by CONFIG_INFINIBAND
    depending on "m || IPV6 != m".
    
    Fixes: e411e058
    
     ("RDMA/qedr: Add iWARP connection management functions")
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    Acked-by: default avatarMichal Kalderon <michal.kalderon@cavium.com>
    Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
    bd491d2a