[PATCH 2/2] nvme-tcp: remove unused variable

[Chaitanya Kulkarni <kch@nvidia.com>]

The variable n declared in nvme_tcp_set_queue_io_cpu() was used in the
original calculation when tcp target was created.

With addtion of commit bd0f5c103101 ("nvme-tcp: Fix I/O queue cpu
spreading for multiple controllers") now all the calculation is based
on io_cpu and mq_map local variable is n is not, resulting in the
kernel test robot warning :-
drivers/nvme/host/tcp.c:1583:18: warning: variable 'n' set but not used [-Wunused-but-set-variable]

Remove the local variable and respective calculations.

Fixes: bd0f5c103101 ("nvme-tcp: Fix I/O queue cpu spreading for multiple controllers")  
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501090934.Dhw69M6j-lkp@intel.com/
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
---
 drivers/nvme/host/tcp.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c
index d6a40b7dba73..e9ff6babc540 100644
--- a/drivers/nvme/host/tcp.c
+++ b/drivers/nvme/host/tcp.c
@@ -1579,22 +1579,18 @@ static void nvme_tcp_set_queue_io_cpu(struct nvme_tcp_queue *queue)
 	struct blk_mq_tag_set *set = &ctrl->tag_set;
 	int qid = nvme_tcp_queue_id(queue) - 1;
 	unsigned int *mq_map = NULL;
-	int cpu, n = 0, min_queues = INT_MAX, io_cpu;
+	int cpu, min_queues = INT_MAX, io_cpu;
 
 	if (wq_unbound)
 		goto out;
 
-	if (nvme_tcp_default_queue(queue)) {
+	if (nvme_tcp_default_queue(queue))
 		mq_map = set->map[HCTX_TYPE_DEFAULT].mq_map;
-		n = qid;
-	} else if (nvme_tcp_read_queue(queue)) {
+	else if (nvme_tcp_read_queue(queue))
 		mq_map = set->map[HCTX_TYPE_READ].mq_map;
-		n = qid - ctrl->io_queues[HCTX_TYPE_DEFAULT];
-	} else if (nvme_tcp_poll_queue(queue)) {
+	else if (nvme_tcp_poll_queue(queue))
 		mq_map = set->map[HCTX_TYPE_POLL].mq_map;
-		n = qid - ctrl->io_queues[HCTX_TYPE_DEFAULT] -
-				ctrl->io_queues[HCTX_TYPE_READ];
-	}
+
 	if (WARN_ON(!mq_map))
 		goto out;
 
-- 
2.40.0