Re: [PATCH] mpt3sas: don't change the dma coherent mask after allocations

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To: Christoph Hellwig <hch@xxxxxx>
Subject: Re: [PATCH] mpt3sas: don't change the dma coherent mask after allocations
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Tue, 21 Jan 2020 00:10:43 -0500
Cc: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx>, sathya.prakash@xxxxxxxxxxxx, suganath-prabu.subramani@xxxxxxxxxxxx, MPT-FusionLinux.pdl@xxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, martin.petersen@xxxxxxxxxx, abdhalee@xxxxxxxxxxxxxxxxxx
In-reply-to: <20200117134506.633586-1-hch@lst.de> (Christoph Hellwig's message of "Fri, 17 Jan 2020 14:45:06 +0100")
Organization: Oracle Corporation
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1.92 (gnu/linux)

[Adding Sreekanth]

> The DMA layer does not allow changing the DMA coherent mask after
> there are outstanding allocations.  Stop doing that and always
> use a 32-bit coherent DMA mask in mpt3sas.

Broadcom: Please review!

-- 
Martin K. Petersen	Oracle Linux Engineering

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  - From: Christoph Hellwig

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