[PATCH net-next 11/14] eth: fbnic: Remove obsolete 32-bit DMA mask fallback

[Ruizhe Zhou]

The DMA API guarantees support for masks of 32 bits or wider and
explicitly identifies retrying a 32-bit mask after a wider request as
incorrect:
https://docs.kernel.org/core-api/dma-api-howto.html#dma-addressing-capabilities

Remove the obsolete fallback while retaining the error check so that a
genuine DMA setup failure is still reported and aborts initialization.

Signed-off-by: Ruizhe Zhou <zhouruizhe@xxxxxxxxxxx>
---
 drivers/net/ethernet/meta/fbnic/fbnic_pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_pci.c b/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
index 8b9bc9e8ea56..47d5dfbf3368 100644
--- a/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_pci.c
@@ -276,8 +276,6 @@ static int fbnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(46));
-	if (err)
-		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (err) {
 		dev_err(&pdev->dev, "DMA configuration failed: %d\n", err);
 		return err;
-- 
2.27.0