cxgb4vf: Remove useless DMA-32 fallback configuration

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As stated in [1], dma_set_mask() with a 64-bit mask never fails if
dev->dma_mask is non-NULL.
So, if it fails, the 32 bits case will also fail for the same reason.

So, if dma_set_mask_and_coherent() succeeds, 'pci_using_dac' is known to be
1.

Simplify code and remove some dead code accordingly.

[1]: https://lkml.org/lkml/2021/6/7/398

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/b14986ea39cea2ca9a6cd0476a3fc167c853ee67.1641736772.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Christophe JAILLET 2022-01-09 14:59:48 +01:00 • committed by Jakub Kicinski

parent 7fc7fc5da6

commit 030f9ce8c7

1 changed files with 5 additions and 15 deletions

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drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c

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