sfc: Skip RX end-of-batch work on channels without an RX queue
authorBen Hutchings <bhutchings@solarflare.com>
Mon, 13 Feb 2012 23:29:16 +0000 (23:29 +0000)
committerBen Hutchings <bhutchings@solarflare.com>
Mon, 13 Feb 2012 23:40:38 +0000 (23:40 +0000)
commitd9ab70079a9730f2d748714cbe4242bc707b9eef
tree5369dab94326cc5ef40bbba766868fc655cb1cf5
parent7280f5ae0d71f2259a42d1f7603480809e4867fb
sfc: Skip RX end-of-batch work on channels without an RX queue

The code in efx_process_channel() to update the RX queue after each
batch of RX completions works out as a no-op on a TX-only channel
where the RX queue structure is set to all-zeroes, but
(1) efx_channel_get_rx_queue() will BUG() if DEBUG is defined, and
(2) it's a waste of time.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
drivers/net/ethernet/sfc/efx.c