From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933321AbcK2QtK (ORCPT ); Tue, 29 Nov 2016 11:49:10 -0500 Received: from mail-oi0-f48.google.com ([209.85.218.48]:34987 "EHLO mail-oi0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756572AbcK2Qr3 (ORCPT ); Tue, 29 Nov 2016 11:47:29 -0500 From: Mathieu Poirier To: gregkh@linuxfoundation.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 7/9] coresight: tmc: Remove duplicate memset Date: Tue, 29 Nov 2016 09:47:17 -0700 Message-Id: <1480438039-24960-8-git-send-email-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1480438039-24960-1-git-send-email-mathieu.poirier@linaro.org> References: <1480438039-24960-1-git-send-email-mathieu.poirier@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Suzuki K. Poulose" The tmc_etr_enable_hw() fills the buffer with 0's before enabling the hardware. So, we don't need an explicit memset() in tmc_enable_etr_sink_sysfs() before calling the tmc_etr_enable_hw(). This patch removes the explicit memset from tmc_enable_etr_sink_sysfs. Signed-off-by: Suzuki K Poulose Signed-off-by: Mathieu Poirier --- drivers/hwtracing/coresight/coresight-tmc-etr.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c index 3b84d0d38c22..5d312699b3b9 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etr.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c @@ -150,8 +150,6 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev) drvdata->buf = drvdata->vaddr; } - memset(drvdata->vaddr, 0, drvdata->size); - drvdata->mode = CS_MODE_SYSFS; tmc_etr_enable_hw(drvdata); out: -- 2.7.4