diff options
| author | Alexei Avshalom Lazar <ailizaro@codeaurora.org> | 2019-12-18 21:10:07 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-12-19 19:15:44 +0300 |
| commit | d3214d42806676e47eec2e5a5ed041ec40b9dd35 (patch) | |
| tree | e40f8d57553f9c5948ad749d74ab6be1fc3c465f | |
| parent | 7be3c2331d506a61da78cfe426a037a3c7de7c71 (diff) | |
| download | linux-d3214d42806676e47eec2e5a5ed041ec40b9dd35.tar.xz | |
wil6210: minimize the time that mem_lock is held
mem_lock is taken for the entire wil_reset().
Optimize this by taking mem_lock just before device is
being reset and release the lock after FW download.
Signed-off-by: Alexei Avshalom Lazar <ailizaro@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/main.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c index 06091d8a9e23..6d39547e20fd 100644 --- a/drivers/net/wireless/ath/wil6210/main.c +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -1654,6 +1654,8 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw) /* Disable device led before reset*/ wmi_led_cfg(wil, false); + down_write(&wil->mem_lock); + /* prevent NAPI from being scheduled and prevent wmi commands */ mutex_lock(&wil->wmi_mutex); if (test_bit(wil_status_suspending, wil->status)) @@ -1702,6 +1704,7 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw) if (wil->secured_boot) { wil_err(wil, "secured boot is not supported\n"); + up_write(&wil->mem_lock); return -ENOTSUPP; } @@ -1737,6 +1740,8 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw) clear_bit(wil_status_resetting, wil->status); + up_write(&wil->mem_lock); + if (load_fw) { wil_unmask_irq(wil); @@ -1786,6 +1791,7 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw) return rc; out: + up_write(&wil->mem_lock); clear_bit(wil_status_resetting, wil->status); return rc; } @@ -1811,9 +1817,7 @@ int __wil_up(struct wil6210_priv *wil) WARN_ON(!mutex_is_locked(&wil->mutex)); - down_write(&wil->mem_lock); rc = wil_reset(wil, true); - up_write(&wil->mem_lock); if (rc) return rc; @@ -1905,9 +1909,7 @@ int __wil_down(struct wil6210_priv *wil) wil_abort_scan_all_vifs(wil, false); mutex_unlock(&wil->vif_mutex); - down_write(&wil->mem_lock); rc = wil_reset(wil, false); - up_write(&wil->mem_lock); return rc; } |