tree 335506c09a2e17a6ab677fb9b32e8e2c854bb8e8
parent fac6b6a065da42f826088c58bddad82e1b1ccb40
author Don Fry <donald.h.fry@intel.com> 1287849770 -0700
committer John W. Linville <linville@tuxdriver.com> 1288032356 -0400

iwlwifi: quiet a noisy printk

Timing issues in microcode for some devices can cause a compressed BA to
be sent to the driver prior to returning any a-MPDU notification.
Traces show RTS-CTS is exchanged and then the timer fires which causes an
empty BA to be sent which acknowledges nothing.  This results in a noisy
printk. Only print the message if the bitmap is non-zero.

Signed-off-by:  Don Fry <donald.h.fry@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>