mwifiex: remove_bss_prio_lock

This patch does away with spinlock in
mwifiex_wmm_get_highest_priolist_ptr in order to improve TP.

Signed-off-by: Zhaoyang Liu <liuzy@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 2 insertions, 9 deletions

diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c
index 2d14dd5856c3..a6db12cae769 100644
--- a/drivers/net/wireless/mwifiex/wmm.c
+++ b/drivers/net/wireless/mwifiex/wmm.c
@@ -944,14 +944,11 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter,
         struct mwifiex_ra_list_tbl *ptr;
         struct mwifiex_tid_tbl *tid_ptr;
         atomic_t *hqp;
-        unsigned long flags_bss, flags_ra;
+        unsigned long flags_ra;
         int i, j;
 
         /* check the BSS with highest priority first */
         for (j = adapter->priv_num - 1; j >= 0; --j) {
-                spin_lock_irqsave(&adapter->bss_prio_tbl[j].bss_prio_lock,
-                                  flags_bss);
-
                 /* iterate over BSS with the equal priority */
                 list_for_each_entry(adapter->bss_prio_tbl[j].bss_prio_cur,
                                     &adapter->bss_prio_tbl[j].bss_prio_head,
@@ -987,19 +984,15 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter,
                         }
                 }
 
-                spin_unlock_irqrestore(&adapter->bss_prio_tbl[j].bss_prio_lock,
-                                       flags_bss);
         }
 
         return NULL;
 
 found:
-        /* holds bss_prio_lock / ra_list_spinlock */
+        /* holds ra_list_spinlock */
         if (atomic_read(hqp) > i)
                 atomic_set(hqp, i);
         spin_unlock_irqrestore(&priv_tmp->wmm.ra_list_spinlock, flags_ra);
-        spin_unlock_irqrestore(&adapter->bss_prio_tbl[j].bss_prio_lock,
-                               flags_bss);
 
         *priv = priv_tmp;
         *tid = tos_to_tid[i];