• Juergen Gross's avatar
    xen/netfront: don't bug in case of too many frags · ad4f15dc
    Juergen Gross authored
    Commit 57f230ab ("xen/netfront: raise max number of slots in
    xennet_get_responses()") raised the max number of allowed slots by one.
    This seems to be problematic in some configurations with netback using
    a larger MAX_SKB_FRAGS value (e.g. old Linux kernel with MAX_SKB_FRAGS
    defined as 18 instead of nowadays 17).
    
    Instead of BUG_ON() in this case just fall back to retransmission.
    
    Fixes: 57f230ab
    
     ("xen/netfront: raise max number of slots in xennet_get_responses()")
    Cc: stable@vger.kernel.org
    Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    ad4f15dc