From: Tom Rix <trix@redhat.com>
To: dennis.dalessandro@cornelisnetworks.com, jgg@ziepe.ca,
leon@kernel.org, nathan@kernel.org, ndesaulniers@google.com
Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org,
llvm@lists.linux.dev, Tom Rix <trix@redhat.com>
Subject: [PATCH] IB/qib: remove unused cnt variable
Date: Thu, 30 Mar 2023 19:58:00 -0400 [thread overview]
Message-ID: <20230330235800.1845815-1-trix@redhat.com> (raw)
clang with W=1 reports
drivers/infiniband/hw/qib/qib_file_ops.c:487:20: error: variable
'cnt' set but not used [-Werror,-Wunused-but-set-variable]
u32 tid, ctxttid, cnt, limit, tidcnt;
^
drivers/infiniband/hw/qib/qib_file_ops.c:1771:9: error: variable
'cnt' set but not used [-Werror,-Wunused-but-set-variable]
int i, cnt = 0, maxtid = ctxt_tidbase + dd->rcvtidcnt;
^
This variable is not used so remove it.
Signed-off-by: Tom Rix <trix@redhat.com>
---
drivers/infiniband/hw/qib/qib_file_ops.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 108520e53928..bf0c90eb3129 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -484,7 +484,7 @@ static int qib_tid_free(struct qib_ctxtdata *rcd, unsigned subctxt,
const struct qib_tid_info *ti)
{
int ret = 0;
- u32 tid, ctxttid, cnt, limit, tidcnt;
+ u32 tid, ctxttid, limit, tidcnt;
struct qib_devdata *dd = rcd->dd;
u64 __iomem *tidbase;
unsigned long tidmap[8];
@@ -520,7 +520,7 @@ static int qib_tid_free(struct qib_ctxtdata *rcd, unsigned subctxt,
/* just in case size changes in future */
limit = tidcnt;
tid = find_first_bit(tidmap, limit);
- for (cnt = 0; tid < limit; tid++) {
+ for (; tid < limit; tid++) {
/*
* small optimization; if we detect a run of 3 or so without
* any set, use find_first_bit again. That's mainly to
@@ -530,7 +530,7 @@ static int qib_tid_free(struct qib_ctxtdata *rcd, unsigned subctxt,
*/
if (!test_bit(tid, tidmap))
continue;
- cnt++;
+
if (dd->pageshadow[ctxttid + tid]) {
struct page *p;
dma_addr_t phys;
@@ -1768,7 +1768,7 @@ static void unlock_expected_tids(struct qib_ctxtdata *rcd)
{
struct qib_devdata *dd = rcd->dd;
int ctxt_tidbase = rcd->ctxt * dd->rcvtidcnt;
- int i, cnt = 0, maxtid = ctxt_tidbase + dd->rcvtidcnt;
+ int i, maxtid = ctxt_tidbase + dd->rcvtidcnt;
for (i = ctxt_tidbase; i < maxtid; i++) {
struct page *p = dd->pageshadow[i];
@@ -1783,7 +1783,6 @@ static void unlock_expected_tids(struct qib_ctxtdata *rcd)
dma_unmap_page(&dd->pcidev->dev, phys, PAGE_SIZE,
DMA_FROM_DEVICE);
qib_release_user_pages(&p, 1);
- cnt++;
}
}
--
2.27.0
next reply other threads:[~2023-03-30 23:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-30 23:58 Tom Rix [this message]
2023-04-03 18:24 ` [PATCH] IB/qib: remove unused cnt variable Leon Romanovsky
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