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ath9k_hw: check GPM HW write pointer before chip reset
authorRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Mon, 11 Jun 2012 06:49:32 +0000 (12:19 +0530)
committerJohn W. Linville <linville@tuxdriver.com>
Wed, 13 Jun 2012 18:35:53 +0000 (14:35 -0400)
Both "MAC Warm Reset" and "MCI Reset Rx" will reset GPM HW write_ptr.
We should check software cached write_ptr against HW write_ptr before
reset. Otherwise the pending DMA data will be lost.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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