[PATCH net-next] qlcnic: remove set but not used variables 'cur_rings, max_hw_rings, tx_desc_info'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c:4011:5:
 warning: variable 'max_hw_rings' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c:4013:6:
 warning: variable 'cur_rings' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c:2996:25:
 warning: variable 'tx_desc_info' set but not used [-Wunused-but-set-variable]

'cur_rings, max_hw_rings' never used since introduction in commit
34e8c406fda5 ("qlcnic: refactor Tx/SDS ring calculation and validation in 
driver.")
'tx_desc_info' never used since commit
95b3890ae39f ("qlcnic: Enhance Tx timeout debugging.")
Also 'queue_type' only can be QLCNIC_RX_QUEUE/QLCNIC_TX_QUEUE,
so make a trival cleanup on if statement.

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c 
b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index d42ba22..16d0479 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -2993,10 +2993,8 @@ int qlcnic_check_temp(struct qlcnic_adapter *adapter)
 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
 {
        int i;
-       struct cmd_desc_type0 *tx_desc_info;
 
        for (i = 0; i < tx_ring->num_desc; i++) {
-               tx_desc_info = &tx_ring->desc_head[i];
                pr_info("TX Desc: %d\n", i);
                print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
                               &tx_ring->desc_head[i],
@@ -4008,19 +4006,12 @@ int qlcnic_validate_rings(struct qlcnic_adapter 
*adapter, __u32 ring_cnt,
                          int queue_type)
 {
        struct net_device *netdev = adapter->netdev;
-       u8 max_hw_rings = 0;
        char buf[8];
-       int cur_rings;
 
-       if (queue_type == QLCNIC_RX_QUEUE) {
-               max_hw_rings = adapter->max_sds_rings;
-               cur_rings = adapter->drv_sds_rings;
+       if (queue_type == QLCNIC_RX_QUEUE)
                strcpy(buf, "SDS");
-       } else if (queue_type == QLCNIC_TX_QUEUE) {
-               max_hw_rings = adapter->max_tx_rings;
-               cur_rings = adapter->drv_tx_rings;
+       else
                strcpy(buf, "Tx");
-       }
 
        if (!is_power_of_2(ring_cnt)) {
                netdev_err(netdev, "%s rings value should be a power of 2\n",
-- 
2.7.0