Re: [PATCH] i40e: Remove useless DMA-32 fallback configuration

[Christophe JAILLET]

Le 09/01/2022 à 18:14, Christophe JAILLET a écrit :
> 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@xxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> Reviewed-by: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>
> ---
>   drivers/net/ethernet/intel/e1000e/netdev.c | 22 +++++++---------------
>   1 file changed, 7 insertions(+), 15 deletions(-)

NAK, wrong subject

CJ