Recent changes in udev are causing problems for drivers that load firmware
from the probe routine. As b43legacy has such a structure, it must be changed.
As this driver loads 3 or 4 firmware files, changing to the asynchronous routine
request_firmware_nowait() would be complicated. In this implementation, the probe
routine starts a delayed_work queue that calls the firmware loading routines when
the delay (1 sec) expires..
Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
---
drivers/net/wireless/b43legacy/b43legacy.h | 3 ++
drivers/net/wireless/b43legacy/main.c | 32 ++++++++++++++++-----------
2 files changed, 22 insertions(+), 13 deletions(-)
diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index 98e3d44..e9337e5 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -581,6 +581,9 @@ struct b43legacy_wl {
struct mutex mutex; /* locks wireless core state */
spinlock_t leds_lock; /* lock for leds */
+ /* delayed firmware loading */
+ struct delayed_work firmware_load;
+
/* We can only have one operating interface (802.11 core)
* at a time. General information about this interface follows.
*/
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 75e70bc..99d1237 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -1557,8 +1557,15 @@ err_format:
return -EPROTO;
}
-static int b43legacy_request_firmware(struct b43legacy_wldev *dev)
+static int b43legacy_one_core_attach(struct ssb_device *dev,
+ struct b43legacy_wl *wl);
+static void b43legacy_one_core_detach(struct ssb_device *dev);
+
+static void b43legacy_request_firmware(struct work_struct *work)
{
+ struct b43legacy_wl *wl = container_of(to_delayed_work(work),
+ struct b43legacy_wl, firmware_load);
+ struct b43legacy_wldev *dev = wl->current_dev;
struct b43legacy_firmware *fw = &dev->fw;
const u8 rev = dev->dev->id.revision;
const char *filename;
@@ -1624,8 +1631,14 @@ static int b43legacy_request_firmware(struct b43legacy_wldev *dev)
if (err)
goto err_load;
}
+ err = ieee80211_register_hw(wl->hw);
+ if (err)
+ goto err_one_core_detach;
+ return;
- return 0;
+err_one_core_detach:
+ b43legacy_one_core_detach(dev->dev);
+ goto error;
err_load:
b43legacy_print_fw_helptext(dev->wl);
@@ -1639,7 +1652,7 @@ err_no_initvals:
error:
b43legacy_release_firmware(dev);
- return err;
+ return;
}
static int b43legacy_upload_microcode(struct b43legacy_wldev *dev)
@@ -2153,9 +2166,6 @@ static int b43legacy_chip_init(struct b43legacy_wldev *dev)
macctl |= B43legacy_MACCTL_INFRA;
b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
- err = b43legacy_request_firmware(dev);
- if (err)
- goto out;
err = b43legacy_upload_microcode(dev);
if (err)
goto out; /* firmware is released later */
@@ -3860,17 +3870,13 @@ static int b43legacy_probe(struct ssb_device *dev,
if (err)
goto err_wireless_exit;
- if (first) {
- err = ieee80211_register_hw(wl->hw);
- if (err)
- goto err_one_core_detach;
- }
+ /* setup and start delayed work to load firmware */
+ INIT_DELAYED_WORK(&wl->firmware_load, b43legacy_request_firmware);
+ schedule_delayed_work(&wl->firmware_load, HZ);
out:
return err;
-err_one_core_detach:
- b43legacy_one_core_detach(dev);
err_wireless_exit:
if (first)
b43legacy_wireless_exit(dev, wl);
--
1.7.7
--
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