From: Michael Buesch Date: Fri, 28 Mar 2008 10:46:58 +0000 (+0100) Subject: b43: Add DMA mapping failure messages X-Git-Tag: v2.6.25-rc9~99^2~10 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=539e6f8cffe9299fbf813ad574535b90ac370031;p=linux-2.6 b43: Add DMA mapping failure messages This adds messages for some DMA mapping failures. These are useful for debugging DMA address problems, as they appear on x86_64 machines with IOMMU enabled. Signed-off-by: Michael Buesch Signed-off-by: John W. Linville --- diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index cfbc1a26f6..948eb1fe91 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -619,6 +619,7 @@ static int setup_rx_descbuffer(struct b43_dmaring *ring, } if (b43_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize, 0)) { + b43err(ring->dev->wl, "RX DMA buffer allocation failed\n"); dev_kfree_skb_any(skb); return -EIO; } @@ -874,8 +875,12 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev, DMA_TO_DEVICE); if (b43_dma_mapping_error(ring, dma_test, - b43_txhdr_size(dev), 1)) + b43_txhdr_size(dev), 1)) { + + b43err(dev->wl, + "TXHDR DMA allocation failed\n"); goto err_kfree_txhdr_cache; + } } dma_unmap_single(dev->dev->dev,