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[124.171.87.207]) by smtp.gmail.com with ESMTPSA id q187sm8946018pfb.131.2020.04.15.04.21.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 15 Apr 2020 04:21:42 -0700 (PDT) Subject: Re: [PATCH 1/4] dma-mapping: move the remaining DMA API calls out of line To: Christoph Hellwig Cc: iommu@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org, Lu Baolu , Greg Kroah-Hartman , Joerg Roedel , Robin Murphy , linux-kernel@vger.kernel.org, Michael Ellerman References: <20200414122506.438134-1-hch@lst.de> <20200414122506.438134-2-hch@lst.de> <20200415061859.GA32392@lst.de> From: Alexey Kardashevskiy Autocrypt: addr=aik@ozlabs.ru; keydata= mQINBE+rT0sBEADFEI2UtPRsLLvnRf+tI9nA8T91+jDK3NLkqV+2DKHkTGPP5qzDZpRSH6mD EePO1JqpVuIow/wGud9xaPA5uvuVgRS1q7RU8otD+7VLDFzPRiRE4Jfr2CW89Ox6BF+q5ZPV /pS4v4G9eOrw1v09lEKHB9WtiBVhhxKK1LnUjPEH3ifkOkgW7jFfoYgTdtB3XaXVgYnNPDFo PTBYsJy+wr89XfyHr2Ev7BB3Xaf7qICXdBF8MEVY8t/UFsesg4wFWOuzCfqxFmKEaPDZlTuR 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c7E5M+/NpslPCmYnDjs5qg0/3ihh6XuOGggZQOqrYPC3PnsNs3NxirwOkVPQgO6mXxpuifvJ DG9EMkK8IBXnLulqVk54kf7fE0jT/d8RTtJIA92GzsgdK2rpT1MBKKVffjRFGwN7nQVOzi4T XrB5p+6ML7Bd84xOEGsj/vdaXmz1esuH7BOZAGEZfLRCHJ0GVCSssg== Message-ID: <5139e8e1-6389-3387-dc39-6983b08ff28d@ozlabs.ru> Date: Wed, 15 Apr 2020 21:21:37 +1000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200415061859.GA32392@lst.de> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 15/04/2020 16:18, Christoph Hellwig wrote: > On Wed, Apr 15, 2020 at 12:26:04PM +1000, Alexey Kardashevskiy wrote: >> May be this is correct and allowed (no idea) but removing exported >> symbols at least deserves a mention in the commit log, does not it? >> >> The rest of the series is fine and works. Thanks, > > Maybe I can throw in a line, but the point is that dma_direct_* > was exported as dma_* called them inline. Now dma_* is out of line > and exported instead, which always was the actual API. They become inline in 2/4. And the fact they were exported leaves possibility that there is a driver somewhere relying on these symbols or distro kernel won't build because the symbol disappeared from exports (I do not know what KABI guarantees or if mainline kernel cares). I do not care in particular but some might, a line separated with empty lines in the commit log would do. -- Alexey