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Mon, 15 Jul 2019 11:45:33 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp2.samsung.com (KnoxPortal) with ESMTP id 20190715114533eusmtrp2313d430b7d78b03a8408c11b8f7f1ca0~xkg3TL7bB2232122321eusmtrp2h; Mon, 15 Jul 2019 11:45:33 +0000 (GMT) X-AuditID: cbfec7f2-f13ff700000010ca-28-5d2c675e54e0 Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 5B.A8.04146.D576C2D5; Mon, 15 Jul 2019 12:45:33 +0100 (BST) Received: from [106.120.51.75] (unknown [106.120.51.75]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190715114533eusmtip10934fe449ce2140be28b810f11969a5d~xkg22_9KH0872608726eusmtip1m; Mon, 15 Jul 2019 11:45:33 +0000 (GMT) Subject: Re: [PATCH v3 15/24] media: exynos4-is: Remove call to memset after dma_alloc_coherent To: Fuqian Huang , linux-media@vger.kernel.org Cc: Kyungmin Park , Mauro Carvalho Chehab , Kukjin Kim , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org From: Sylwester Nawrocki Message-ID: <92ced8c7-22cb-c6a2-6390-2f68f88e6841@samsung.com> Date: Mon, 15 Jul 2019 13:45:30 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20190715031851.6890-1-huangfq.daxian@gmail.com> Content-Language: en-GB Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA01SaUhUURjtzntv5s3kyHU0/FDJmBawcoOiB6YoWQ4E0Y8gMaymfKnoqM1z bzMVKbesNGswtXBrIpMZcyXD0TRNG1wSwVJRf1SORS6UaJnPp+S/853vnHu+A5cmFEbKgQ6P imW1UepIpVhG1nUsfnA9G7o/2GPsriNT0d1FMXcmpwnGbK6RML2pFgljmByimIGmIjGTXfOK Yh6aW0RMhWFZ5CtVNeo+S1QG/W2xylh2Q5Vbq0eqOcP2k1SQ7HAIGxkez2rdfc7Lwiw5xWRM hyix9etTMgXdF2UiKQ34ALzR56BMJKMVuApBxuQoKQzzCIZ+pFDCMIegwPia2LCY+w1iHitw JYIX0wGCaAaBKX0M8QtbrIbsB/NrGXZYBa1dLWJeROBsEeRPVK+9JMaekPM2d9VA03LsA78X T/E0iXfDwGD9WsA2HAjd7cUkj+XYBroeTZG8XIq9Yewnw9MEtofU+WeUgJ2hfqaI4KMAd0hg rrsZCUf7Q595cL2zLXzrrJUI2AlWGktEgiENQXbziEQY8hCMdZauu72grbOP4pMJ7AIvm9wF 2g/SLCNingZsDcMzNsIR1nCvrpAQaDncylAI6l2wpC9cP8EBsqZWyDyk1G1qpttUR7epju5/ biki9ciejeM0oSznGcUmuHFqDRcXFep2MVpjQKtf6f3fztkGtNB/wYQwjZRWct+QfcEKSh3P JWlMCGhCaSf3Xlil5CHqpGRWG31OGxfJcibkSJNKe/mVLeNnFDhUHctGsGwMq93YimipQwqy vfSkR+kcabEKu/p4ydj+q8Dp4LEg/7q+svLrbONKt4cZ4q85TuwJLM5NSPbjDKWmTKxMPLIj Aj9vasifkiUPX77ZM9DAaI7Hjm59V3jIaiXoe/msdVB6dXXlaZfCLK+BBBefo1ZecV9kjsuf 2iqNveOuJR/TdwacsFQN/ZF2xCpJLkztuZfQcup/hIOQPEYDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrEIsWRmVeSWpSXmKPExsVy+t/xu7qx6TqxBjufalgsO3WS1aL/8Wtm i/PnN7BbnG16w26x6fE1VovLu+awWfRs2MpqMeP8PiaLZZv+MDlweuycdZfdY9OqTjaPzUvq Pfq2rGL0+LxJLoA1Ss+mKL+0JFUhI7+4xFYp2tDCSM/Q0kLPyMRSz9DYPNbKyFRJ384mJTUn syy1SN8uQS/jTe88loJjTBUHXy5iaWCczNTFyMkhIWAicf7SJjYQW0hgKaPE6y7BLkYOoLiU xPwWJYgSYYk/17qASriASl4zSmxdeJMZJCEskCjRM+0L2BwRAQ+Jgyf3gRUxC/QwSdxY/5gV ZJCQgI3EsTdcIDVsAoYSvUf7GEHCvAJ2Ej9+hoCEWQRUJS5f2Q52gqhAhMSkaztZQGxeAUGJ kzOfsICUcwrYStz/aAESZhZQl/gz7xIzhC0u0fRlJSuELS+x/e0c5gmMQrOQdM9C0jILScss JC0LGFlWMYqklhbnpucWG+oVJ+YWl+al6yXn525iBMbftmM/N+9gvLQx+BCjAAejEg+vQ4p2 rBBrYllxZe4hRgkOZiURXtuvQCHelMTKqtSi/Pii0pzU4kOMpkC/TWSWEk3OB6aGvJJ4Q1ND cwtLQ3Njc2MzCyVx3g6BgzFCAumJJanZqakFqUUwfUwcnFINjDP0Ovn3lyw783vFu9TVD5ks XwksEi6brnoguLJ24rK2yXuuLjC79n6JjtR0HeeMRyaF8jf2qmVfztr0qifnbOJzpdb4vlA9 u3dTOxbuff9GX/fhwXmzHWaeUzpXuM8nrvG/cqL47dUZR9a6aLt3X9j8ZEv0PsZNKgt+F/be tL0tV/eB6+yXJ7+UWIozEg21mIuKEwEm36Gf1QIAAA== X-CMS-MailID: 20190715114533eucas1p2e63b98faa6d3888df025cedde5bc2696 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20190715114533eucas1p2e63b98faa6d3888df025cedde5bc2696 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190715114533eucas1p2e63b98faa6d3888df025cedde5bc2696 References: <20190715031851.6890-1-huangfq.daxian@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 7/15/19 05:18, Fuqian Huang wrote: > In commit 518a2f1925c3 > ("dma-mapping: zero memory returned from dma_alloc_*"), > dma_alloc_coherent has already zeroed the memory. > So memset is not needed > > Signed-off-by: Fuqian Huang Reviewed-by: Sylwester Nawrocki