IB/srp: Use list_first_entry()

Use the list_first_entry() macro in ib_srp instead of open-coding the equivalent,
which makes the source code slightly more descriptive.  The list_first_entry()
macro itself was introduced in kernel 2.6.22.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 4df8275..9b4bc5a 100644 (file)
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1151,7 +1151,7 @@ static int srp_queuecommand(struct scsi_cmnd *scmnd,
        ib_dma_sync_single_for_cpu(dev, iu->dma, srp_max_iu_len,
                                   DMA_TO_DEVICE);
 
-       req = list_entry(target->free_reqs.next, struct srp_request, list);
+       req = list_first_entry(&target->free_reqs, struct srp_request, list);
 
        scmnd->scsi_done     = done;
        scmnd->result        = 0;