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Date:   Thu, 10 Aug 2023 09:21:33 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Richard Weinberger <richard@nod.at>
Cc:     Christoph Hellwig <hch@infradead.org>,
        linux-mtd <linux-mtd@lists.infradead.org>,
        Stephan Wurm <stephan.wurm@a-eberle.de>,
        stable <stable@vger.kernel.org>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Oliver Neukum <oliver@neukum.org>,
        Ali Akcaagac <aliakc@web.de>,
        Jamie Lenehan <lenehan@twibble.org>,
        James Bottomley <jejb@linux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
        Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        linux-scsi <linux-scsi@vger.kernel.org>
Subject: Re: [PATCH 1/7] ubi: block: Refactor sg list processing for highmem
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On Thu, Aug 10, 2023 at 06:15:36PM +0200, Richard Weinberger wrote:
> >> The followup patches in this series will switch to kmap_sg()
> >> and we can remove our own helper and the bounce buffer.
> > 
> > Please just use kmap_local and avoid the bounce buffering.
> 
> Patch 6 does this.

But why add the bounce buffering first if you can avoid it from the
very beginning by just using kmap_local instead of adding a new
caller for the deprecate kmap_atomic?