diff options
| author | Ruizhe Zhou <zhouruizhe@resnics.com> | 2026-09-03 16:43:28 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-09-08 16:46:26 -0700 |
| commit | 12a924aebcf58fbf954921afaad2dceb5047f91b (patch) | |
| tree | 819671a158a56d1c39f121d0986db26f54bb484b | |
| parent | fc5a6ed4992c5892aac6001c121e18c5b2463621 (diff) | |
| download | linux-next-12a924aebcf58fbf954921afaad2dceb5047f91b.tar.gz linux-next-12a924aebcf58fbf954921afaad2dceb5047f91b.zip | |
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 <zhouruizhe@resnics.com>
Link: https://patch.msgid.link/20260903084339.870562-4-zhouruizhe@resnics.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/broadcom/bcmsysport.c | 2 |
1 files changed, 0 insertions, 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; |