From 12a924aebcf58fbf954921afaad2dceb5047f91b Mon Sep 17 00:00:00 2001 From: Ruizhe Zhou Date: Thu, 3 Sep 2026 16:43:28 +0800 Subject: [PATCH] net: systemport: Remove obsolete 32-bit DMA mask fallback 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 Link: https://patch.msgid.link/20260903084339.870562-4-zhouruizhe@resnics.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bcmsysport.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 4d06c6ba6641..4f0ec136b606 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -2453,8 +2453,6 @@ static int bcm_sysport_probe(struct platform_device *pdev) return -EINVAL; ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(40)); - if (ret) - ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); if (ret) { dev_err(&pdev->dev, "unable to set DMA mask: %d\n", ret); return ret;