[PATCH] RDMA/cxgb3: remove redundant first assignement of sqp

[PATCH] RDMA/cxgb3: remove redundant first assignement of sqp

[Colin King]

From: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>

sqp is being initialised when it is being declared and then updated
a little later on making the first initialization redundant. Clean
this up by initializing ptr and sqp at their declaration.

Cleans up warning: "warning: Value stored to 'sqp' during its
initialization is never read"

Fixes: a58e58fafdff ("RDMA/cxgb3: Wrap the software send queue pointer as needed on flush")
Signed-off-by: Colin Ian King <colin.king-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
---
 drivers/infiniband/hw/cxgb3/cxio_hal.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index 3eff6541bd6f..b42e81ab5fa8 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -404,12 +404,10 @@ static void insert_sq_cqe(struct t3_wq *wq, struct t3_cq *cq,
 
 int cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count)
 {
-	__u32 ptr;
+	__u32 ptr = wq->sq_rptr + count;
 	int flushed = 0;
-	struct t3_swsq *sqp = wq->sq + Q_PTR2IDX(wq->sq_rptr, wq->sq_size_log2);
+	struct t3_swsq *sqp = wq->sq + Q_PTR2IDX(ptr, wq->sq_size_log2);
 
-	ptr = wq->sq_rptr + count;
-	sqp = wq->sq + Q_PTR2IDX(ptr, wq->sq_size_log2);
 	while (ptr != wq->sq_wptr) {
 		sqp->signaled = 0;
 		insert_sq_cqe(wq, cq, sqp);
-- 
2.14.1

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RE: [PATCH] RDMA/cxgb3: remove redundant first assignement of sqp

[Steve Wise]

> 
> From: Colin Ian King <colin.king@canonical.com>
> 
> sqp is being initialised when it is being declared and then updated
> a little later on making the first initialization redundant. Clean
> this up by initializing ptr and sqp at their declaration.
> 
> Cleans up warning: "warning: Value stored to 'sqp' during its
> initialization is never read"
> 
> Fixes: a58e58fafdff ("RDMA/cxgb3: Wrap the software send queue pointer as
> needed on flush")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Acked-by: Steve Wise <swise@opengridcomputing.com>

Re: [PATCH] RDMA/cxgb3: remove redundant first assignement of sqp

[Doug Ledford]

On Mon, 2017-09-11 at 12:42 +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> sqp is being initialised when it is being declared and then updated
> a little later on making the first initialization redundant. Clean
> this up by initializing ptr and sqp at their declaration.
> 
> Cleans up warning: "warning: Value stored to 'sqp' during its
> initialization is never read"
> 
> Fixes: a58e58fafdff ("RDMA/cxgb3: Wrap the software send queue
> pointer as needed on flush")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Thanks, applied.

-- 
Doug Ledford <dledford@redhat.com>
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