From cfbfd86bfde15020bccde377e11586ee5c8b701d Mon Sep 17 00:00:00 2001 From: "Lendacky, Thomas" Date: Mon, 6 Jul 2015 11:57:37 -0500 Subject: amd-xgbe: Fix DMA API debug warning When running a kernel configured with CONFIG_DMA_API_DEBUG=y a warning is issued: DMA-API: device driver tries to sync DMA memory it has not allocated This warning is the result of mapping the full range of the Rx buffer pages allocated and then performing a dma_sync_single_for_cpu against a calculated DMA address. The proper thing to do is to use the dma_sync_single_range_for_cpu with a base DMA address and an offset. Reported-by: Kim Phillips Signed-off-by: Tom Lendacky Tested-by: Kim Phillips Signed-off-by: David S. Miller --- drivers/net/ethernet/amd/xgbe/xgbe.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/net/ethernet/amd/xgbe/xgbe.h') diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h index 63d72a140053..717ce21b6077 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe.h +++ b/drivers/net/ethernet/amd/xgbe/xgbe.h @@ -337,7 +337,8 @@ struct xgbe_buffer_data { struct xgbe_page_alloc pa; struct xgbe_page_alloc pa_unmap; - dma_addr_t dma; + dma_addr_t dma_base; + unsigned long dma_off; unsigned int dma_len; }; -- cgit v1.2.3