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Fri, 18 Apr 2025 06:19:15 +0000 (GMT) X-AuditID: cbfec7f2-b09c370000005155-f8-6801eee41dfe Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id F3.C1.19654.3EEE1086; Fri, 18 Apr 2025 07:19:15 +0100 (BST) Received: from [106.210.134.192] (unknown [106.210.134.192]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20250418061915eusmtip2e899d892d07912e35aebee8f28071eec~3VUmmCK0n2270222702eusmtip20; Fri, 18 Apr 2025 06:19:15 +0000 (GMT) Message-ID: <304860b1-cd01-4d27-92eb-0bf6e30398fb@samsung.com> Date: Fri, 18 Apr 2025 08:19:14 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] dma-mapping: avoid potential unused data compilation warning To: Andy Shevchenko Cc: iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Christoph Hellwig , Robin Murphy , netdev@vger.kernel.org, Jakub Kicinski Content-Language: en-US From: Marek Szyprowski In-Reply-To: Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA01Se2xLYRzNd+/t3V2jc3Xob5tnGUF0xug1zCNERQQRxDwbvbqyddJumJA1 xKvzbM2jG5sitlra2ZhtItJlVFM6amqW2ZIZw1J0s5htxtbrsf/OOb/zfed3vnwULjTzwimV OoXVqOWJYpJPlDz6UTW56TNKmFJ8fyBz4sB5jMm/+RBjOr8xzLOSkzzmRXk2yTzKHcrYvzbx 5gXJCi4XIFmR5Rgpu+xcKftQfBHJ7r3WkbK2ohEryHj+bAWbqNrFaqLitvATGrqOop0HeXv0 heeQDp0l9CiYAjoGDvzy8PSITwnpPATe+seII98Q5LZ8JjnShuCNrgP9PfKl3YBzgxsIjl/3 YRzxI2h2dwb1uQR0HOT528k+TNCRcCfrBsHpg8B5sSmAh9AjoaH2QsAfSq+CDGdZQB9MS8Fq MAeicbocQY+3PDDAaRHUNuVgfZiko0Hv0wcCgumpYH7/Aec8I+GuLzuwHtB1FFhe3SK5vRdC Zrc1iMOh8Mlx+w8eBi7jcYI7cKS3dVcDxpHTCHTNtX9az4I6d2fvTVRvxASwlUdx8nzIyv6O 9clAh0CNbxC3RAgYSs7jnCyAo4eFnHscmBzWf7H2Zx78NBKb+r2LqV9NU786pv+5uYiwIBGb qk1SstpoNbtbopUnaVPVSsnW5KQi1PuNXD2O1lJ06ZNfUoEwClUgoHDxYIFb2qMUChTytL2s JnmzJjWR1VagCIoQiwTmB4eUQlopT2F3sOxOVvN3ilHB4TpMv9h9b5G845B6f/IQiRVfd+3t rzGW0KuilO5dY8uuF4Yw4kJjRiX/xXdfZKbdjtfPGhj5xYlU80MzjOvF69NjLMyaGT8zUhXd PYpWSvR0S75Laq6Km3vNK2rRuJ9Pjx8/2/Rm25MIwlY9Nv/C6lFJYY7ilzlxDZcOx2ywpX11 GbqDTtV4lxdsLIkarS99MunkuxHSxvBRlcJlr/wenc5lD/uoG1CWJy311PCVRr5E7MBr91YN 7eywVXsah+1/neZtvEPFLjHGqwoX4BGb0vc5ISw23dBeN23hnIq1/pwzzZU8Y2P1zQWyd/XD w7O2b6xZ+iNTlZ210qaY2WIjr1jFhDZBHj0R12jlvwFGFXTBtQMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrCIsWRmVeSWpSXmKPExsVy+t/xe7qP3zFmGHRON7PobZrOZLFy9VEm i19fLCwubOtjtbi8aw6bxbEFYhYHPzxhdWD3WDNvDaPHplWdbB7zTgZ6vNg8k9Fj980GNo/P m+QC2KL0bIryS0tSFTLyi0tslaINLYz0DC0t9IxMLPUMjc1jrYxMlfTtbFJSczLLUov07RL0 Mu7/7mAsaGat6NowjbGBcQpLFyMnh4SAicT7r5OYuxi5OIQEljJKzOi4xASRkJE4Oa2BFcIW lvhzrYsNoug9o8Tv27vBErwCdhIrPn5lA7FZBFQlts5ezgIRF5Q4OfMJmC0qIC9x/9YMdhBb WCBYovvkTrC4iIC5xLpJi8CGMgvsYpTYsegXI8QGIOde61JmkCpmAXGJW0/mg53EJmAo0fW2 C2wbp4CRxKJnL6BqzCS6tnYxQtjyEtvfzmGewCg0C8khs5CMmoWkZRaSlgWMLKsYRVJLi3PT c4uN9IoTc4tL89L1kvNzNzECo2/bsZ9bdjCufPVR7xAjEwfjIUYJDmYlEd5z5v/ShXhTEiur Uovy44tKc1KLDzGaAkNjIrOUaHI+MP7zSuINzQxMDU3MLA1MLc2MlcR52a6cTxMSSE8sSc1O TS1ILYLpY+LglGpg4s4sOf1S+PbliOmXvGdNVhGZ5dX4feWh2+wrHuQ8uhmRGTfP7ivrtbBI JWHhFHcj5tRXSh8ql1/3Ebg340vOiZrfq9Kfe5fL6bt8KDSTy/g4yUHp8rvVP5Nup31IsuJ0 3jfhcVxsfYvhse1d5ZeOzvhTKOChEnVxF5+FvriEZ33hSevjlotnaBpEMztor98j3NbrVZ9d ftJao7rHRtxIJ51Xq2JW9LLVc33//ShzqDjFf2vJ/OdTKpSnWikdTeAMkL2w+qL5/ao1UksZ XBq5b751j+Nu2Rvu9Eb8xuR5Z+Umvpvz+pllPeNZwRTFI19uFLm633gX/ri7QpXt/9mr5jG2 R/+2Gz8PeTshgalBiaU4I9FQi7moOBEAGYc69kcDAAA= X-CMS-MailID: 20250418061915eucas1p275a0d6e23c262981277109d6d0db95d6 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20250415075716eucas1p1a5343f5dec617f82f5adca300eb47485 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20250415075716eucas1p1a5343f5dec617f82f5adca300eb47485 References: <20250415075659.428549-1-m.szyprowski@samsung.com> On 15.04.2025 11:39, Andy Shevchenko wrote: > On Tue, Apr 15, 2025 at 09:56:59AM +0200, Marek Szyprowski wrote: >> When CONFIG_NEED_DMA_MAP_STATE is not defined, dma-mapping clients might >> report unused data compilation warnings for dma_unmap_*() calls >> arguments. Redefine macros for those calls to let compiler to notice that >> it is okay when the provided arguments are not used. > Tested-by: Andy Shevchenko > > (GCC on default i386_defconfig with `make W=1` on v6.15-rc2) Applied to dma-mapping-fixes branch. Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland