[PATCH net-next 07/14] fm10k: Remove obsolete 32-bit DMA mask fallback
From: Ruizhe Zhou <hidden>
Date: 2026-09-03 09:00:15
Also in:
intel-wired-lan, lkml
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, 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/intel/fm10k/fm10k_pci.c | 2 -- 1 file changed, 2 deletions(-)
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
index f5b4d062709a..afe939f8f4ef 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c@@ -2111,8 +2111,6 @@ static int fm10k_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(48)); - 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);
--
2.27.0