Re: [PATCH v3] stmmac: troubleshoot unexpected bits in des0 & des1

2015-06-24 Thread David Miller
From: Alexey Brodkin Date: Wed, 24 Jun 2015 11:47:41 +0300 > Current implementation of descriptor init procedure only takes > care about setting/clearing ownership flag in "des0"/"des1" > fields while it is perfectly possible to get unexpected bits > set because of the following factors: Applied

[PATCH v3] stmmac: troubleshoot unexpected bits in des0 & des1

2015-06-24 Thread Alexey Brodkin
Current implementation of descriptor init procedure only takes care about setting/clearing ownership flag in "des0"/"des1" fields while it is perfectly possible to get unexpected bits set because of the following factors: [1] On driver probe underlying memory allocated with dma_alloc_coheren