From: Fuqian Huang <huangfq.daxian@gmail.com> To: unlisted-recipients:; (no To-header on input) Cc: Sinan Kaya <okaya@kernel.org>, Andy Gross <agross@kernel.org>, David Brown <david.brown@linaro.org>, Vinod Koul <vkoul@kernel.org>, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, Fuqian Huang <huangfq.daxian@gmail.com> Subject: [PATCH v3 04/24] dmaengine: qcom_hidma: Remove call to memset after dmam_alloc_coherent Date: Mon, 15 Jul 2019 11:17:23 +0800 [thread overview] Message-ID: <20190715031723.6375-1-huangfq.daxian@gmail.com> (raw) 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 <huangfq.daxian@gmail.com> --- Changes in v3: - Use actual commit rather than the merge commit in the commit message drivers/dma/qcom/hidma_ll.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/dma/qcom/hidma_ll.c b/drivers/dma/qcom/hidma_ll.c index 5bf8b145c427..bb4471e84e48 100644 --- a/drivers/dma/qcom/hidma_ll.c +++ b/drivers/dma/qcom/hidma_ll.c @@ -749,7 +749,6 @@ struct hidma_lldev *hidma_ll_init(struct device *dev, u32 nr_tres, if (!lldev->tre_ring) return NULL; - memset(lldev->tre_ring, 0, (HIDMA_TRE_SIZE + 1) * nr_tres); lldev->tre_ring_size = HIDMA_TRE_SIZE * nr_tres; lldev->nr_tres = nr_tres; @@ -769,7 +768,6 @@ struct hidma_lldev *hidma_ll_init(struct device *dev, u32 nr_tres, if (!lldev->evre_ring) return NULL; - memset(lldev->evre_ring, 0, (HIDMA_EVRE_SIZE + 1) * nr_tres); lldev->evre_ring_size = HIDMA_EVRE_SIZE * nr_tres; /* the EVRE ring has to be EVRE_SIZE aligned */ -- 2.11.0
WARNING: multiple messages have this Message-ID (diff)
From: Fuqian Huang <huangfq.daxian@gmail.com> Cc: linux-arm-msm@vger.kernel.org, Sinan Kaya <okaya@kernel.org>, linux-kernel@vger.kernel.org, David Brown <david.brown@linaro.org>, Vinod Koul <vkoul@kernel.org>, Andy Gross <agross@kernel.org>, Fuqian Huang <huangfq.daxian@gmail.com>, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 04/24] dmaengine: qcom_hidma: Remove call to memset after dmam_alloc_coherent Date: Mon, 15 Jul 2019 11:17:23 +0800 [thread overview] Message-ID: <20190715031723.6375-1-huangfq.daxian@gmail.com> (raw) 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 <huangfq.daxian@gmail.com> --- Changes in v3: - Use actual commit rather than the merge commit in the commit message drivers/dma/qcom/hidma_ll.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/dma/qcom/hidma_ll.c b/drivers/dma/qcom/hidma_ll.c index 5bf8b145c427..bb4471e84e48 100644 --- a/drivers/dma/qcom/hidma_ll.c +++ b/drivers/dma/qcom/hidma_ll.c @@ -749,7 +749,6 @@ struct hidma_lldev *hidma_ll_init(struct device *dev, u32 nr_tres, if (!lldev->tre_ring) return NULL; - memset(lldev->tre_ring, 0, (HIDMA_TRE_SIZE + 1) * nr_tres); lldev->tre_ring_size = HIDMA_TRE_SIZE * nr_tres; lldev->nr_tres = nr_tres; @@ -769,7 +768,6 @@ struct hidma_lldev *hidma_ll_init(struct device *dev, u32 nr_tres, if (!lldev->evre_ring) return NULL; - memset(lldev->evre_ring, 0, (HIDMA_EVRE_SIZE + 1) * nr_tres); lldev->evre_ring_size = HIDMA_EVRE_SIZE * nr_tres; /* the EVRE ring has to be EVRE_SIZE aligned */ -- 2.11.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2019-07-15 3:17 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-07-15 3:17 Fuqian Huang [this message] 2019-07-15 3:17 ` [PATCH v3 04/24] dmaengine: qcom_hidma: Remove call to memset after dmam_alloc_coherent Fuqian Huang 2019-07-15 4:17 ` Sinan Kaya 2019-07-15 4:17 ` Sinan Kaya 2019-07-15 5:43 ` Fuqian Huang 2019-07-15 5:43 ` Fuqian Huang 2019-07-15 15:17 ` Sinan Kaya 2019-07-15 15:17 ` Sinan Kaya 2019-07-16 11:35 ` Robin Murphy 2019-07-16 11:35 ` Robin Murphy 2019-07-16 15:10 ` Sinan Kaya 2019-07-16 15:10 ` Sinan Kaya 2019-08-08 12:22 ` Vinod Koul 2019-08-08 12:22 ` Vinod Koul
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