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Fri, 06 Feb 2026 07:03:25 -0800 (PST) Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: In-Reply-To: From: Anuj gupta Date: Fri, 6 Feb 2026 20:32:47 +0530 X-Gm-Features: AZwV_QgZhDOY8h13FRDtMZqnV6_xaqir1VOWq2MTchb4BXyrN5R68VQhosU9bGY Message-ID: Subject: Re: [RFC v2 02/11] iov_iter: introduce iter type for pre-registered dma To: Pavel Begunkov Cc: linux-block@vger.kernel.org, io-uring@vger.kernel.org, Vishal Verma , tushar.gohad@intel.com, Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , Alexander Viro , Christian Brauner , Andrew Morton , Sumit Semwal , =?UTF-8?Q?Christian_K=C3=B6nig?= , linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org Content-Type: text/plain; charset="UTF-8" > +void iov_iter_dma_token(struct iov_iter *i, unsigned int direction, > + struct dma_token *token, > + loff_t off, size_t count) > +{ > + WARN_ON(direction & ~(READ | WRITE)); > + *i = (struct iov_iter){ > + .iter_type = ITER_DMA_TOKEN, > + .data_source = direction, > + .dma_token = token, > + .iov_offset = 0, nit: iov_offset is getting below too. can get rid of this one. > + .count = count, > + .iov_offset = off, > + };