From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1035525AbdEZL1E (ORCPT ); Fri, 26 May 2017 07:27:04 -0400 Received: from mail-by2nam01on0064.outbound.protection.outlook.com ([104.47.34.64]:41824 "EHLO NAM01-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755405AbdEZL02 (ORCPT ); Fri, 26 May 2017 07:26:28 -0400 Authentication-Results: spf=fail (sender IP is 192.88.168.50) smtp.mailfrom=nxp.com; vger.kernel.org; dkim=none (message not signed) header.d=none;vger.kernel.org; dmarc=fail action=none header.from=nxp.com; From: Leonard Crestez To: Shawn Guo CC: Fabio Estevam , Dong Aisheng , , "Paul E . McKenney" , Matt Fleming , Octavian Purdila , Stephen Rothwell , Subject: [PATCH] ARM: imx_v6_v7_defconfig: Explicitly restore CONFIG_DEBUG_FS Date: Fri, 26 May 2017 14:26:06 +0300 Message-ID: <49b2579b9ad2e5ce0a7c4b163dffb5a885ac7dae.1495797565.git.leonard.crestez@nxp.com> X-Mailer: git-send-email 2.7.4 X-EOPAttributedMessage: 0 X-Matching-Connectors: 131402715855823580;(91ab9b29-cfa4-454e-5278-08d120cd25b8);() X-Forefront-Antispam-Report: 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1;BL2PR03MB162;7:UhVYCiPKQ8vGC3WyzkFz0N8vvmR/g6m4XvrY8bPOHT/hqnrQG7C/zRjNdEnIuVD8L5UmCPJcxtzQidJMbANPjnqvyjDkKYoR/zYzoBCSbPkbEQcTmeBmX9kR6tcpQeF11fIuGlS9TcGkKkHy4RFtVygN/icmsp5uxnYYCGLDaRRvk8I2njxIOwCXRNOafg3bhyXf9M877wN8g58t9P2P5wL6LeRXmM/ingChp+8s7FAWxc8Ngy73LunWxVTDuxodHtkI1H2VOwhwih+8oox9btscFlYepJCTFWXwy6okJxLZaHKceAcEJM8hDIHda2eZN0LKqwNpQMT6VSRf7G/WxQ== X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 May 2017 11:26:25.3639 (UTC) X-MS-Exchange-CrossTenant-Id: 5afe0b00-7697-4969-b663-5eab37d5f47e X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=5afe0b00-7697-4969-b663-5eab37d5f47e;Ip=[192.88.168.50];Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL2PR03MB162 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This option was removed by "make savedefconfig" in commit c5054a98bce4 ("ARM: imx_v6_v7_defconfig: Select SMSC_PHY") This happened because CONFIG_DEBUG_FS was implicitly selected by CONFIG_TREE_RCU_TRACE which defaulted to true because CONFIG_RCU_TRACE was enabled by default by commit 961518259b3b ("rcu: Enable RCU tracepoints by default to aid in debugging") Recently however CONFIG_RCU_TRACE was completely removed by commit 6e74c237c410 ("rcu: Remove debugfs tracing") The result is that imx_v6_v7_defconfig no longer includes DEBUG_FS on linux-next since next-20170517. This is bad, DEBUG_FS is extremely useful for kernel introspection and testing. Signed-off-by: Leonard Crestez --- Patch is against next-20170526. Applying it to shawnguo/imx/defconfig and cycling via savedefconfig makes this diff go away. Alternatively maybe DEBUG_FS itself could be made "default y if DEBUG_KERNEL" or similar? arch/arm/configs/imx_v6_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index bf1e7e3..51ca814 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -381,6 +381,7 @@ CONFIG_NLS_ISO8859_1=y CONFIG_NLS_ISO8859_15=m CONFIG_NLS_UTF8=y CONFIG_PRINTK_TIME=y +CONFIG_DEBUG_FS=y CONFIG_MAGIC_SYSRQ=y # CONFIG_SCHED_DEBUG is not set CONFIG_PROVE_LOCKING=y -- 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: leonard.crestez@nxp.com (Leonard Crestez) Date: Fri, 26 May 2017 14:26:06 +0300 Subject: [PATCH] ARM: imx_v6_v7_defconfig: Explicitly restore CONFIG_DEBUG_FS Message-ID: <49b2579b9ad2e5ce0a7c4b163dffb5a885ac7dae.1495797565.git.leonard.crestez@nxp.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This option was removed by "make savedefconfig" in commit c5054a98bce4 ("ARM: imx_v6_v7_defconfig: Select SMSC_PHY") This happened because CONFIG_DEBUG_FS was implicitly selected by CONFIG_TREE_RCU_TRACE which defaulted to true because CONFIG_RCU_TRACE was enabled by default by commit 961518259b3b ("rcu: Enable RCU tracepoints by default to aid in debugging") Recently however CONFIG_RCU_TRACE was completely removed by commit 6e74c237c410 ("rcu: Remove debugfs tracing") The result is that imx_v6_v7_defconfig no longer includes DEBUG_FS on linux-next since next-20170517. This is bad, DEBUG_FS is extremely useful for kernel introspection and testing. Signed-off-by: Leonard Crestez --- Patch is against next-20170526. Applying it to shawnguo/imx/defconfig and cycling via savedefconfig makes this diff go away. Alternatively maybe DEBUG_FS itself could be made "default y if DEBUG_KERNEL" or similar? arch/arm/configs/imx_v6_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index bf1e7e3..51ca814 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -381,6 +381,7 @@ CONFIG_NLS_ISO8859_1=y CONFIG_NLS_ISO8859_15=m CONFIG_NLS_UTF8=y CONFIG_PRINTK_TIME=y +CONFIG_DEBUG_FS=y CONFIG_MAGIC_SYSRQ=y # CONFIG_SCHED_DEBUG is not set CONFIG_PROVE_LOCKING=y -- 2.7.4