linux-kernel - Re: [PATCH] IB/mthca: Remove useless DMA-32 fallback configuration

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Date:   Mon, 10 Jan 2022 11:50:31 -0400
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-rdma@...r.kernel.org
Subject: Re: [PATCH] IB/mthca: Remove useless DMA-32 fallback configuration

On Sun, Jan 09, 2022 at 09:30:09AM +0100, Christophe JAILLET wrote:
> 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.
> 
> Simplify code and remove some dead code accordingly.
> 
> [1]: https://lkml.org/lkml/2021/6/7/398

Can you use lore links please?

Jason