[PATCH 29/55] staging: wfx: simplify handling of tx_lock in wfx_do_join()

Jérôme Pouiller
2019-12-16T17:06:21Z

In the old days, wfx_do_join() could be called from different contexts.
Now that wfx_do_join() is called only from one place, it is cleaner to
keep lock and unlock of data inside the function.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
drivers/staging/wfx/sta.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index 939c64f108ed..62e65493a4fe 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -644,7 +644,6 @@ static void wfx_set_mfp(struct wfx_vif *wvif,
hif_set_mfp(wvif, mfpc, mfpr);
}

-/* MUST be called with tx_lock held! It will be unlocked for us. */
static void wfx_do_join(struct wfx_vif *wvif)
{
const u8 *bssid;
@@ -659,6 +658,8 @@ static void wfx_do_join(struct wfx_vif *wvif)
conf->basic_rates),
};

+ wfx_tx_lock_flush(wvif->wdev);
+
if (wvif->channel->flags & IEEE80211_CHAN_NO_IR)
join.probe_for_join = 0;

@@ -1180,10 +1181,8 @@ void wfx_bss_info_changed(struct ieee80211_hw *hw,
}
mutex_unlock(&wdev->conf_mutex);

- if (do_join) {
- wfx_tx_lock_flush(wdev);
- wfx_do_join(wvif); /* Will unlock it for us */
- }
+ if (do_join)
+ wfx_do_join(wvif);
}

static void wfx_ps_notify(struct wfx_vif *wvif, enum sta_notify_cmd notify_cmd,
--
2.20.1