diff options
| author | Michael Buesch <mb@bu3sch.de> | 2008-03-28 11:46:58 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-04-01 21:44:08 +0200 |
| commit | 539e6f8cffe9299fbf813ad574535b90ac370031 (patch) | |
| tree | 8cce36a4d420c248e60c97ee02729dbd88a8f109 /drivers | |
| parent | mac80211: trigger ieee80211_sta_work after opening interface (diff) | |
| download | linux-539e6f8cffe9299fbf813ad574535b90ac370031.tar.xz linux-539e6f8cffe9299fbf813ad574535b90ac370031.zip | |
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 <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index cfbc1a26f601..948eb1fe916b 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, |