[PATCH net-next 11/14] eth: fbnic: Remove obsolete 32-bit DMA mask fallback
From: Ruizhe Zhou <hidden>
Date: 2026-09-03 08:45:00
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Subsystem:
meta ethernet drivers, networking drivers, the rest · Maintainers:
Alexander Duyck, Jakub Kicinski, Andrew Lunn, "David S. Miller", Eric Dumazet, Paolo Abeni, Linus Torvalds
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 <redacted> --- 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