[PATCH for-next 05/11] IB/hfi1: Remove unnecessary if check

Dennis Dalessandro
2017-11-06T14:38:45Z

From: Jan Sokolowski <jan.sokolowski-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

A for loop condition of data_iovs in user_sdma_free_request
is unnecessarily repeated before the loop as an if check.

Remove the if enveloping the loop.

Reviewed-by: Jakub Byczkowski <jakub.byczkowski-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Jan Sokolowski <jan.sokolowski-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
drivers/infiniband/hw/hfi1/user_sdma.c | 30 +++++++++++++++---------------
1 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c
index 01b9a9c..833d0b7 100644
--- a/drivers/infiniband/hw/hfi1/user_sdma.c
+++ b/drivers/infiniband/hw/hfi1/user_sdma.c
@@ -1428,6 +1428,8 @@ static inline void pq_update(struct hfi1_user_sdma_pkt_q *pq)

static void user_sdma_free_request(struct user_sdma_request *req, bool unpin)
{
+ int i;
+
if (!list_empty(&req->txps)) {
struct sdma_txreq *t, *p;

@@ -1439,22 +1441,20 @@ static void user_sdma_free_request(struct user_sdma_request *req, bool unpin)
kmem_cache_free(req->pq->txreq_cache, tx);
}
}
- if (req->data_iovs) {
- struct sdma_mmu_node *node;
- int i;
-
- for (i = 0; i < req->data_iovs; i++) {
- node = req->iovs[i].node;
- if (!node)
- continue;
-
- if (unpin)
- hfi1_mmu_rb_remove(req->pq->handler,
- &node->rb);
- else
- atomic_dec(&node->refcount);
- }
+
+ for (i = 0; i < req->data_iovs; i++) {
+ struct sdma_mmu_node *node = req->iovs[i].node;
+
+ if (!node)
+ continue;
+
+ if (unpin)
+ hfi1_mmu_rb_remove(req->pq->handler,
+ &node->rb);
+ else
+ atomic_dec(&node->refcount);
}
+
kfree(req->tids);
clear_bit(req->info.comp_idx, req->pq->req_in_use);