linux-kernel - Re: [PATCH] scsi: hisi_sas: Remove useless DMA-32 fallback configuration

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Message-ID: <yq1ee54l6sv.fsf@ca-mkp.ca.oracle.com>
Date:   Tue, 18 Jan 2022 22:53:59 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc:     John Garry <john.garry@...wei.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        linux-scsi@...r.kernel.org
Subject: Re: [PATCH] scsi: hisi_sas: Remove useless DMA-32 fallback
 configuration


Christophe,

> 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.

Applied to 5.17/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering