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11 Oct 2017 00:46:21 +0000 Received: from OMZP1LUMXCA14.uswin.ad.vzwcorp.com (144.8.22.189) by OHTWI1EXH003.uswin.ad.vzwcorp.com (10.144.218.45) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 10 Oct 2017 20:46:21 -0400 Received: from OMZP1LUMXCA17.uswin.ad.vzwcorp.com (144.8.22.195) by OMZP1LUMXCA14.uswin.ad.vzwcorp.com (144.8.22.189) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Tue, 10 Oct 2017 19:46:20 -0500 Received: from OMZP1LUMXCA17.uswin.ad.vzwcorp.com ([144.8.22.195]) by OMZP1LUMXCA17.uswin.ad.vzwcorp.com ([144.8.22.195]) with mapi id 15.00.1263.000; Tue, 10 Oct 2017 19:46:20 -0500 To: "gregkh@linuxfoundation.org" CC: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: [GIT PULL for-4.4 02/25] watchdog: kempld: fix gcc-4.3 build Thread-Topic: [GIT PULL for-4.4 02/25] watchdog: kempld: fix gcc-4.3 build Thread-Index: AQHTQipCdcMVp+1EF0WpDC5cNXnTwQ== Date: Wed, 11 Oct 2017 00:45:39 +0000 Message-ID: <20171011004533.8044-3-alexander.levin@verizon.com> References: <20171011004533.8044-1-alexander.levin@verizon.com> In-Reply-To: <20171011004533.8044-1-alexander.levin@verizon.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.144.60.250] MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnd Bergmann [ Upstream commit 3736d4eb6af37492aeded7fec0072dedd959c842 ] gcc-4.3 can't decide whether the constant value in kempld_prescaler[PRESCALER_21] is built-time constant or not, and gets confused by the logic in do_div(): drivers/watchdog/kempld_wdt.o: In function `kempld_wdt_set_stage_timeout': kempld_wdt.c:(.text.kempld_wdt_set_stage_timeout+0x130): undefined reference to `__aeabi_uldivmod' This adds a call to ACCESS_ONCE() to force it to not consider it to be constant, and leaves the more efficient normal case in place for modern compilers, using an #ifdef to annotate why we do this hack. Signed-off-by: Arnd Bergmann Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin --- drivers/watchdog/kempld_wdt.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) -- 2.11.0 diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c index 5bf931ce1353..978098f71761 100644 --- a/drivers/watchdog/kempld_wdt.c +++ b/drivers/watchdog/kempld_wdt.c @@ -140,12 +140,19 @@ static int kempld_wdt_set_stage_timeout(struct kempld_wdt_data *wdt_data, unsigned int timeout) { struct kempld_device_data *pld = wdt_data->pld; - u32 prescaler = kempld_prescaler[PRESCALER_21]; + u32 prescaler; u64 stage_timeout64; u32 stage_timeout; u32 remainder; u8 stage_cfg; +#if GCC_VERSION < 40400 + /* work around a bug compiling do_div() */ + prescaler = READ_ONCE(kempld_prescaler[PRESCALER_21]); +#else + prescaler = kempld_prescaler[PRESCALER_21]; +#endif + if (!stage) return -EINVAL; From patchwork Wed Oct 11 00:45:44 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Levin, Alexander \(Sasha Levin\)" X-Patchwork-Id: 115475 Delivered-To: patch@linaro.org Received: by 10.140.22.163 with SMTP id 32csp176517qgn; Tue, 10 Oct 2017 17:50:28 -0700 (PDT) X-Google-Smtp-Source: AOwi7QC/mQgZg5ZIxdvD4uwdLVwdczo2jaliZX1sOs1LxmOcs8G6ZlO92oQ4GmjHz6GK8PviNd+T X-Received: by 10.84.217.86 with SMTP id e22mr13346319plj.216.1507683028259; Tue, 10 Oct 2017 17:50:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1507683028; cv=none; d=google.com; s=arc-20160816; b=P+nbbpS1RIy6j6XkPH7fzgDPtGghe14btQ/xrHOgiIBGdzJPTy4QuqS8mX2BSQZe+L zitvjtCkOFczFKsvAVTUEd3MCl6+109QAXnnhLpx2fMsxAwQgwOj3byPXz9nhWXJ38Kn 6UUK4sPmsnfkaa93tMG0FPwl4rxgts9D5qSVdp6+I3GeEjBZ9P6O6eRNIqEGfMdui9lv uC0kdNkp/ppJlUNo/mFpKLZ1p2Q+3TYZMBToZh6Cz+cLUPEBNeK7HKCUMVHKvu+/oJIo djqZjz3Ukxv4pTJfz6kEai9nr80RlafpYohD0rpzbgkg1tg4wcAUYiYHK0ZJL88I79NS Oaww== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:dkim-signature :dkim-signature:from:dkim-signature:arc-authentication-results; bh=yyIU8Pu/zIYx5hCgLn90pxT+Sa06ut933sIr8lXnj5k=; b=VHrsauJhpQTHNztf22ap5Mci1Tr242Ds7YsZGFSWnp38PAqFeUJfsrbwGudUperHMc dvsgpqUiEQoFBm4iB3s3SaBLgVCDKYFglHWL1XzgOLk1Jp4Y1s66A1tbcY4fFfz7oa2l SqHrN2f4dKGUXnVpSVf14XOyKimXmWAC82XHwbRlUFzeMDLQJNV4CKBvEWGwTulM9uaE FG83b7yzEe571MnrVPetutTLA3YKQDW/gGIOnVQt3/m5sttNG3Xb77iy0y4LBGSvLpBn 6mRCTwIlvxFuwbvlxWz3ryKJ1SCD5Tg3A+RNuOln+LiQ9mcjn/GxQ5zRBN2+fw82VV5K ZBqQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@verizon.com header.s=corp header.b=ln1IvGVA; dkim=fail header.i=@verizon.com header.s=corp header.b=HIPwS0Ac; dkim=fail header.i=@verizon.com header.s=corp header.b=HIPwS0Ac; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=verizon.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. 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11 Oct 2017 00:47:06 +0000 Received: from tbwexch17apd.uswin.ad.vzwcorp.com (153.114.162.41) by OHTWI1EXH003.uswin.ad.vzwcorp.com (10.144.218.45) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 10 Oct 2017 20:47:06 -0400 Received: from OMZP1LUMXCA12.uswin.ad.vzwcorp.com (144.8.22.187) by tbwexch17apd.uswin.ad.vzwcorp.com (153.114.162.41) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Tue, 10 Oct 2017 20:47:05 -0400 Received: from OMZP1LUMXCA17.uswin.ad.vzwcorp.com (144.8.22.195) by OMZP1LUMXCA12.uswin.ad.vzwcorp.com (144.8.22.187) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Tue, 10 Oct 2017 19:47:05 -0500 Received: from OMZP1LUMXCA17.uswin.ad.vzwcorp.com ([144.8.22.195]) by OMZP1LUMXCA17.uswin.ad.vzwcorp.com ([144.8.22.195]) with mapi id 15.00.1263.000; Tue, 10 Oct 2017 19:47:05 -0500 To: "gregkh@linuxfoundation.org" CC: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: [GIT PULL for-4.4 25/25] cpufreq: CPPC: add ACPI_PROCESSOR dependency Thread-Topic: [GIT PULL for-4.4 25/25] cpufreq: CPPC: add ACPI_PROCESSOR dependency Thread-Index: AQHTQipFh4gM2fhVjU+c+/+TI/4AEQ== Date: Wed, 11 Oct 2017 00:45:44 +0000 Message-ID: <20171011004533.8044-26-alexander.levin@verizon.com> References: <20171011004533.8044-1-alexander.levin@verizon.com> In-Reply-To: <20171011004533.8044-1-alexander.levin@verizon.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.144.60.250] MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnd Bergmann [ Upstream commit a578884fa0d2768f13d37c6591a9e1ed600482d3 ] Without the Kconfig dependency, we can get this warning: warning: ACPI_CPPC_CPUFREQ selects ACPI_CPPC_LIB which has unmet direct dependencies (ACPI && ACPI_PROCESSOR) Fixes: 5477fb3bd1e8 (ACPI / CPPC: Add a CPUFreq driver for use with CPPC) Signed-off-by: Arnd Bergmann Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/cpufreq/Kconfig.arm | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.11.0 diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index b1f8a73e5a94..eed1e073d96d 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -241,7 +241,7 @@ config ARM_PXA2xx_CPUFREQ config ACPI_CPPC_CPUFREQ tristate "CPUFreq driver based on the ACPI CPPC spec" - depends on ACPI + depends on ACPI_PROCESSOR select ACPI_CPPC_LIB default n help