diff options
| author | Andreas Fenkart <andreas.fenkart@streamunlimited.com> | 2013-04-05 05:03:51 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-04-08 21:28:39 +0200 |
| commit | 6d2344ec6043a2de8cfa9d8f27909a99ca967a08 (patch) | |
| tree | 3ec931eb2d47e9b20d344f52e8773f2d4f02a775 /drivers/net/wireless/mwifiex | |
| parent | mwifiex: correct wrong list in list_empty check (diff) | |
| download | linux-6d2344ec6043a2de8cfa9d8f27909a99ca967a08.tar.xz linux-6d2344ec6043a2de8cfa9d8f27909a99ca967a08.zip | |
mwifiex: remove unused tid_tbl_lock from mwifiex_tid_tbl
ra_list_spinlock is used to protect struct mwifiex_wmm_desc and
embedded structures such as ra_list. tid_tbl_lock while more fine
grained, is not used but in one function. That function is not
called reentrantly. To protect ra_list from concurrent modification
ra_list_spinlock must be held.
Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwifiex')
| -rw-r--r-- | drivers/net/wireless/mwifiex/init.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/main.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/wmm.c | 8 |
3 files changed, 5 insertions, 9 deletions
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c index 003c014d2176..42d7f0adf9bd 100644 --- a/drivers/net/wireless/mwifiex/init.c +++ b/drivers/net/wireless/mwifiex/init.c @@ -533,10 +533,8 @@ int mwifiex_init_lock_list(struct mwifiex_adapter *adapter) if (!adapter->priv[i]) continue; priv = adapter->priv[i]; - for (j = 0; j < MAX_NUM_TID; ++j) { + for (j = 0; j < MAX_NUM_TID; ++j) INIT_LIST_HEAD(&priv->wmm.tid_tbl_ptr[j].ra_list); - spin_lock_init(&priv->wmm.tid_tbl_ptr[j].tid_tbl_lock); - } INIT_LIST_HEAD(&priv->tx_ba_stream_tbl_ptr); INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); INIT_LIST_HEAD(&priv->sta_list); diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h index fef89fd6d77b..622b17f884f0 100644 --- a/drivers/net/wireless/mwifiex/main.h +++ b/drivers/net/wireless/mwifiex/main.h @@ -213,8 +213,6 @@ struct mwifiex_ra_list_tbl { struct mwifiex_tid_tbl { struct list_head ra_list; - /* spin lock for tid table */ - spinlock_t tid_tbl_lock; struct mwifiex_ra_list_tbl *ra_list_curr; }; diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index 1b039ba0d55b..c1d848882fe2 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -927,12 +927,12 @@ mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter, if (!tid_ptr->ra_list_curr) continue; - spin_lock_irqsave(&tid_ptr->tid_tbl_lock, - flags); + spin_lock_irqsave(&priv_tmp->wmm. + ra_list_spinlock, flags); is_list_empty = list_empty(&tid_ptr->ra_list); - spin_unlock_irqrestore(&tid_ptr->tid_tbl_lock, - flags); + spin_unlock_irqrestore(&priv_tmp->wmm. + ra_list_spinlock, flags); if (is_list_empty) continue; |