From: Alexey Brodkin <alexey.brod...@synopsys.com> Date: Tue, 16 Jun 2015 20:40:41 +0300
> Current implementtion of descriptor init procedure only takes care about > ownership flag. While it is perfectly possible to have underlying memory > filled with garbage on boot or driver installation. > > And randomly set flags in non-zeroed des0 and des1 fields may lead to > unpredictable behavior of the GMAC DMA block. > > Solution to this problem is as simple as explicit zeroing of both des0 > and des1 fields of all buffer descriptors. > > Signed-off-by: Alexey Brodkin <abrod...@synopsys.com> If you need the memory zero initialized, use dma_zalloc_coherent(). -- To unsubscribe from this list: send the line "unsubscribe netdev" in
