tree 9354703d24ee22e321caa904f889d8e9bebe7175
parent 7fc7fc5da61bfb0ed6056243de3bb17bfbce9f53
author Christophe JAILLET <christophe.jaillet@wanadoo.fr> 1641736788 +0100
committer Jakub Kicinski <kuba@kernel.org> 1641775940 -0800

cxgb4vf: Remove useless DMA-32 fallback configuration

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>