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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2022-01-09 19:24:08 +0100
committerTony Nguyen <anthony.l.nguyen@intel.com>2022-01-27 08:58:24 -0800
commit9498d4affd61e9d97ec06cd67bc46da2485d8dba (patch)
tree37a6dd167736b8d3ebb33024243c394203c4f141
parenta34a42d87a08052f2084891a73a86356f60f7dd4 (diff)
iavf: Remove useless DMA-32 fallback configuration
As stated in [1], dma_set_mask() with a 64-bit mask never fails if dev->dma_mask is non-NULL. So, if it fails, the 32 bits case will also fail for the same reason. Simplify code and remove some dead code accordingly. [1]: https://lkml.org/lkml/2021/6/7/398 Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alexander Lobakin <alexandr.lobakin@intel.com> Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
-rw-r--r--drivers/net/ethernet/intel/iavf/iavf_main.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 8125b9120615..b0bd95c85480 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -4368,12 +4368,9 @@ static int iavf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err) {
- err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
- if (err) {
- dev_err(&pdev->dev,
- "DMA configuration failed: 0x%x\n", err);
- goto err_dma;
- }
+ dev_err(&pdev->dev,
+ "DMA configuration failed: 0x%x\n", err);
+ goto err_dma;
}
err = pci_request_regions(pdev, iavf_driver_name);