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  1. 28 3月, 2013 1 次提交
  3. 26 3月, 2013 2 次提交
  5. 14 3月, 2013 13 次提交
  7. 07 3月, 2013 3 次提交
  9. 26 2月, 2013 1 次提交
    • L
      b43: Fix lockdep splat on module unload · 63a02ce1
      由 Larry Finger 提交于 
      On unload, b43 produces a lockdep warning that can be summarized in the
following way:

 ======================================================
 [ INFO: possible circular locking dependency detected ]
 3.8.0-wl+ #117 Not tainted
 -------------------------------------------------------
 modprobe/5557 is trying to acquire lock:
  ((&wl->firmware_load)){+.+.+.}, at: [<ffffffff81062160>] flush_work+0x0/0x2a0

 but task is already holding lock:
  (rtnl_mutex){+.+.+.}, at: [<ffffffff813bd7d2>] rtnl_lock+0x12/0x20

 which lock already depends on the new lock.
 [ INFO: possible circular locking dependency detected ]
 ======================================================

The full output is available at http://lkml.indiana.edu/hypermail/linux/kernel/1302.3/00060.html.
To summarize, commit 6b6fa586 added a 'cancel_work_sync(&wl->firmware_load)'
call in the wrong place.

The fix is to move the cancel_work_sync() call to b43_bcma_remove() and
b43_ssb_remove(). Thanks to Johannes Berg and Michael Buesch for help in
diagnosing the log output.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [V3.5+]
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      63a02ce1
  11. 19 2月, 2013 1 次提交
    • L
      b43: Increase number of RX DMA slots · ccae0e50
      由 Larry Finger 提交于 
      Bastian Bittorf reported that some of the silent freezes on a Linksys WRT54G
were due to overflow of the RX DMA ring buffer, which was created with 64
slots. That finding reminded me that I was seeing similar crashed on a netbook,
which also has a relatively slow processor. After increasing the number of
slots to 128, runs on the netbook that previously failed now worked; however,
I found that 109 slots had been used in one test. For that reason, the number
of slots is being increased to 256.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Bastian Bittorf <bittorf@bluebottle.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      ccae0e50
  13. 23 1月, 2013 2 次提交
  15. 08 1月, 2013 1 次提交
    • L
      b43: Fix firmware loading when driver is built into the kernel · 5e20a4b5
      由 Larry Finger 提交于 
      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 6b6fa586) 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: NLarry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>  (V3.4+)
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
      5e20a4b5
  17. 11 12月, 2012 1 次提交
  19. 07 12月, 2012 1 次提交
  21. 14 11月, 2012 1 次提交
  23. 25 10月, 2012 1 次提交
  25. 20 10月, 2012 1 次提交
  27. 01 9月, 2012 1 次提交
  29. 11 8月, 2012 1 次提交
  31. 07 8月, 2012 8 次提交
  33. 03 8月, 2012 1 次提交