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b=RDz9qVfpkRY4EAI36WaskxJdBPEHUlHFbAqFkCaVljTQw2lc/CZWqFZnCOm8MUu+u UrnadqItcqjJX8psssUB220xLgoCNkTErsCMMfM+LcQNv/lN9+7iyBAixDzSSYRERs 9QvymfQ6DxqnBDFAPnDfrK3vcmVwiHkXZQebyeCwLRbHisYArdA1/1Ng8W7pTvxGdN ExFInLH9/9MK/zmr0slhL5h+cLRxxF3IiVZqx3CiPDDOuIqmNXHF3wJ8GD6rscX14G v8WEpFME6iQdRojmcM1vpWqjFnfXt8wLrQZoE00EvORp7GOiurN3OrarLMgd6b2C6G j2uwfP3dJ++Dg== Date: Sun, 20 Apr 2025 10:09:46 +0300 From: Leon Romanovsky To: ALOK TIWARI Cc: Marek Szyprowski , Jens Axboe , Christoph Hellwig , Keith Busch , Jake Edge , Jonathan Corbet , Jason Gunthorpe , Zhu Yanjun , Robin Murphy , Joerg Roedel , Will Deacon , Sagi Grimberg , Bjorn Helgaas , Logan Gunthorpe , Yishai Hadas , Shameer Kolothum , Kevin Tian , Alex Williamson , =?iso-8859-1?B?Suly9G1l?= Glisse , Andrew Morton , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-rdma@vger.kernel.org, iommu@lists.linux.dev, linux-nvme@lists.infradead.org, linux-pci@vger.kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, Niklas Schnelle , Chuck Lever , Luis Chamberlain , Matthew Wilcox , Dan Williams , Kanchan Joshi , Chaitanya Kulkarni Subject: Re: [PATCH v8 20/24] blk-mq: add scatterlist-less DMA mapping helpers Message-ID: <20250420070946.GA10635@unreal> References: <87b151a3791d71e58ec6f1b42bcf5fe06304cf80.1744825142.git.leon@kernel.org> <65b0070e-3386-4725-8e8a-15b0409b8368@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <65b0070e-3386-4725-8e8a-15b0409b8368@oracle.com> X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 1D5FCC0003 X-Rspam-User: X-Stat-Signature: mzrchs4dkn14ngxo5o4p1baz9nqxqyjm X-HE-Tag: 1745132992-779694 X-HE-Meta: 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 LLp/2YVz o7SrDE5o/OKRovSFk1jf9qffALB97iQWYhUg2s4/cSroS1TmcWNbGeuAtf6CLY2bcyKMPIYTLnybdXD7ZsS5lTh/mfMWQXKsB/x3TYXhxKrg+448k/3X/f3W7EjH739xVgCjwgwY54xV4AqsFgdvBqugogenrZLlytlLj7rjF+wEzSFUMw7a9x3QeSnvWqCTGhX+tqvGCyybIN1zQ+KGmGj3Nf9b/OQkwfP2FtFT9HAAVQJDmU/W1aZBT/FLAfwAN91hv X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Apr 18, 2025 at 11:33:09PM +0530, ALOK TIWARI wrote: > > > > + * Start DMA mapping @req to @dma_dev. @state and @iter are provided by the > > + * caller and don't need to be initialized. @state needs to be stored for use > > + * at unmap time, @iter is only needed at map time. > > + * > > + * Returns %false if there is no segment to map, including due to an error, or > > + * %true it it did map a segment. > > typo - it it -> if it Thanks, will fix all types on my dma-split-wip branch.