diff options
| author | Larry Finger <Larry.Finger@lwfinger.net> | 2012-12-20 15:55:01 -0600 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-01-07 14:34:45 -0500 |
| commit | 5e20a4b53094651d80f856ff55a916b999dbb57a (patch) | |
| tree | d338006317c3938085af5d2f9d0b94066373005f /drivers/net/wireless/b43/b43.h | |
| parent | 407ee23725bba0f273963bb744fea6cb3cf78bf4 (diff) | |
b43: Fix firmware loading when driver is built into the kernel
Recent versions of udev cause synchronous firmware loading from the
probe routine to fail because the request to user space would time
out. The original fix for b43 (commit 6b6fa58) moved the firmware
load from the probe routine to a work queue, but it still used synchronous
firmware loading. This method is OK when b43 is built as a module;
however, it fails when the driver is compiled into the kernel.
This version changes the code to load the initial firmware file
using request_firmware_nowait(). A completion event is used to
hold the work queue until that file is available. This driver
reads several firmware files - the remainder can be read synchronously.
On some test systems, the async read fails; however, a following synch
read works, thus the async failure falls through to the sync try.
Reported-and-Tested by: Felix Janda <felix.janda@posteo.de>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> (V3.4+)
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/b43.h')
| -rw-r--r-- | drivers/net/wireless/b43/b43.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h index b298e5d68be2..10e288d470e7 100644 --- a/drivers/net/wireless/b43/b43.h +++ b/drivers/net/wireless/b43/b43.h @@ -7,6 +7,7 @@ #include <linux/hw_random.h> #include <linux/bcma/bcma.h> #include <linux/ssb/ssb.h> +#include <linux/completion.h> #include <net/mac80211.h> #include "debugfs.h" @@ -722,6 +723,10 @@ enum b43_firmware_file_type { struct b43_request_fw_context { /* The device we are requesting the fw for. */ struct b43_wldev *dev; + /* a completion event structure needed if this call is asynchronous */ + struct completion fw_load_complete; + /* a pointer to the firmware object */ + const struct firmware *blob; /* The type of firmware to request. */ enum b43_firmware_file_type req_type; /* Error messages for each firmware type. */ |