From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755894AbcKJSTM (ORCPT ); Thu, 10 Nov 2016 13:19:12 -0500 Received: from mail-it0-f54.google.com ([209.85.214.54]:35835 "EHLO mail-it0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755873AbcKJSTK (ORCPT ); Thu, 10 Nov 2016 13:19:10 -0500 From: Mathieu Poirier To: gregkh@linuxfoundation.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 6/8] coresight: tmc: Get rid of mode parameter for helper routines Date: Thu, 10 Nov 2016 11:18:52 -0700 Message-Id: <1478801934-26904-7-git-send-email-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1478801934-26904-1-git-send-email-mathieu.poirier@linaro.org> References: <1478801934-26904-1-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" Get rid of the superfluous mode parameter and the check for the mode in tmc_etX_enable_sink_{perf/sysfs}. While at it, also remove the unnecessary WARN_ON() checks. Cc: Mathieu Poirier Signed-off-by: Suzuki K Poulose Signed-off-by: Mathieu Poirier --- drivers/hwtracing/coresight/coresight-tmc-etf.c | 18 +++++------------- drivers/hwtracing/coresight/coresight-tmc-etr.c | 15 ++++----------- 2 files changed, 9 insertions(+), 24 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-tmc-etf.c b/drivers/hwtracing/coresight/coresight-tmc-etf.c index e80a8f4cd12e..1549436e2492 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etf.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etf.c @@ -103,7 +103,7 @@ static void tmc_etf_disable_hw(struct tmc_drvdata *drvdata) CS_LOCK(drvdata->base); } -static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev, u32 mode) +static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev) { int ret = 0; bool used = false; @@ -111,10 +111,6 @@ static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev, u32 mode) unsigned long flags; struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); - /* This shouldn't be happening */ - if (WARN_ON(mode != CS_MODE_SYSFS)) - return -EINVAL; - /* * If we don't have a buffer release the lock and allocate memory. * Otherwise keep the lock and move along. @@ -176,16 +172,12 @@ static int tmc_enable_etf_sink_sysfs(struct coresight_device *csdev, u32 mode) return ret; } -static int tmc_enable_etf_sink_perf(struct coresight_device *csdev, u32 mode) +static int tmc_enable_etf_sink_perf(struct coresight_device *csdev) { int ret = 0; unsigned long flags; struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); - /* This shouldn't be happening */ - if (WARN_ON(mode != CS_MODE_PERF)) - return -EINVAL; - spin_lock_irqsave(&drvdata->spinlock, flags); if (drvdata->reading) { ret = -EINVAL; @@ -202,7 +194,7 @@ static int tmc_enable_etf_sink_perf(struct coresight_device *csdev, u32 mode) goto out; } - drvdata->mode = mode; + drvdata->mode = CS_MODE_PERF; tmc_etb_enable_hw(drvdata); out: spin_unlock_irqrestore(&drvdata->spinlock, flags); @@ -214,9 +206,9 @@ static int tmc_enable_etf_sink(struct coresight_device *csdev, u32 mode) { switch (mode) { case CS_MODE_SYSFS: - return tmc_enable_etf_sink_sysfs(csdev, mode); + return tmc_enable_etf_sink_sysfs(csdev); case CS_MODE_PERF: - return tmc_enable_etf_sink_perf(csdev, mode); + return tmc_enable_etf_sink_perf(csdev); } /* We shouldn't be here */ diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c index f23ef0c23303..3b84d0d38c22 100644 --- a/drivers/hwtracing/coresight/coresight-tmc-etr.c +++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c @@ -93,7 +93,7 @@ static void tmc_etr_disable_hw(struct tmc_drvdata *drvdata) CS_LOCK(drvdata->base); } -static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev, u32 mode) +static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev) { int ret = 0; bool used = false; @@ -102,9 +102,6 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev, u32 mode) dma_addr_t paddr; struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); - /* This shouldn't be happening */ - if (WARN_ON(mode != CS_MODE_SYSFS)) - return -EINVAL; /* * If we don't have a buffer release the lock and allocate memory. @@ -170,16 +167,12 @@ static int tmc_enable_etr_sink_sysfs(struct coresight_device *csdev, u32 mode) return ret; } -static int tmc_enable_etr_sink_perf(struct coresight_device *csdev, u32 mode) +static int tmc_enable_etr_sink_perf(struct coresight_device *csdev) { int ret = 0; unsigned long flags; struct tmc_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent); - /* This shouldn't be happening */ - if (WARN_ON(mode != CS_MODE_PERF)) - return -EINVAL; - spin_lock_irqsave(&drvdata->spinlock, flags); if (drvdata->reading) { ret = -EINVAL; @@ -208,9 +201,9 @@ static int tmc_enable_etr_sink(struct coresight_device *csdev, u32 mode) { switch (mode) { case CS_MODE_SYSFS: - return tmc_enable_etr_sink_sysfs(csdev, mode); + return tmc_enable_etr_sink_sysfs(csdev); case CS_MODE_PERF: - return tmc_enable_etr_sink_perf(csdev, mode); + return tmc_enable_etr_sink_perf(csdev); } /* We shouldn't be here */ -- 2.7.4