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IB/srp: Move code out of a loop 

Since all srp_map_finish_fr() callers pass a non-zero value as
the fourth argument (sg_nents), the sg_nents == 0 check in that
function can be removed. Add a count == 0 check in the caller
of that function.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Laurence Oberman <loberman@redhat.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bart Van Assche 2016-04-22 14:14:43 -07:00 committed by Doug Ledford
parent ffc548bb36
commit 3b59b7a693
1 changed files with 3 additions and 3 deletions
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6
drivers/infiniband/ulp/srp/ib_srp.c
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@ -1315,9 +1315,6 @@ static int srp_map_finish_fr(struct srp_map_state *state,
WARN_ON_ONCE(!dev->use_fast_reg);
if (sg_nents == 0)
return 0;
if (sg_nents == 1 && target->global_mr) {
srp_map_desc(state, sg_dma_address(state->sg),
sg_dma_len(state->sg),
@ -1439,6 +1436,9 @@ static int srp_map_sg_fr(struct srp_map_state *state, struct srp_rdma_ch *ch,
state->fr.end = req->fr_list + ch->target->cmd_sg_cnt;
state->sg = scat;
if (count == 0)
return 0;
while (count) {
int i, n;