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[2a00:1028:83b8:1e7a:3010:3bd6:8521:caf1]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-453823ad20bsm76001965e9.20.2025.06.27.03.10.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Jun 2025 03:10:28 -0700 (PDT) From: Petr Tesarik To: Jonathan Corbet , Randy Dunlap , Robin Murphy , Marek Szyprowski Cc: Andrew Morton , Keith Busch , Jens Axboe , Bagas Sanjaya , linux-doc@vger.kernel.org (open list:DOCUMENTATION), linux-kernel@vger.kernel.org (open list), linux-mm@kvack.org (open list:MEMORY MANAGEMENT), Petr Tesarik Subject: [PATCH v2 4/8] docs: dma-api: add a kernel-doc comment for dma_pool_zalloc() Date: Fri, 27 Jun 2025 12:10:11 +0200 Message-ID: <20250627101015.1600042-5-ptesarik@suse.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250627101015.1600042-1-ptesarik@suse.com> References: <20250627101015.1600042-1-ptesarik@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Document the dma_pool_zalloc() wrapper. Signed-off-by: Petr Tesarik Reviewed-by: Randy Dunlap Tested-by: Randy Dunlap --- Documentation/core-api/mm-api.rst | 2 ++ include/linux/dmapool.h | 8 ++++++++ 2 files changed, 10 insertions(+) diff --git a/Documentation/core-api/mm-api.rst b/Documentation/core-api/mm-= api.rst index af8151db88b28..a61766328ac06 100644 --- a/Documentation/core-api/mm-api.rst +++ b/Documentation/core-api/mm-api.rst @@ -97,6 +97,8 @@ DMA pools .. kernel-doc:: mm/dmapool.c :export: =20 +.. kernel-doc:: include/linux/dmapool.h + More Memory Management Functions =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D =20 diff --git a/include/linux/dmapool.h b/include/linux/dmapool.h index 06c4de602b2f3..c0c7717d3ae7b 100644 --- a/include/linux/dmapool.h +++ b/include/linux/dmapool.h @@ -60,6 +60,14 @@ static inline struct dma_pool *dma_pool_create(const cha= r *name, NUMA_NO_NODE); } =20 +/** + * dma_pool_zalloc - Get a zero-initialized block of DMA coherent memory. + * @pool: dma pool that will produce the block + * @mem_flags: GFP_* bitmask + * @handle: pointer to dma address of block + * + * Same as @dma_pool_alloc, but the returned memory is zeroed. + */ static inline void *dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags, dma_addr_t *handle) { --=20 2.49.0