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X-Host: discovery.odc.vzwcorp.com Received: from casac1exh001.uswin.ad.vzwcorp.com ([10.11.218.43]) by mercury.verizonwireless.com with ESMTP/TLS/AES128-SHA256; 25 Sep 2017 01:12:43 +0000 Received: from scwexch30apd.uswin.ad.vzwcorp.com (153.114.130.49) by CASAC1EXH001.uswin.ad.vzwcorp.com (10.11.218.43) with Microsoft SMTP Server (TLS) id 14.3.248.2; Sun, 24 Sep 2017 18:12:42 -0700 Received: from OMZP1LUMXCA20.uswin.ad.vzwcorp.com (144.8.22.198) by scwexch30apd.uswin.ad.vzwcorp.com (153.114.130.49) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Sun, 24 Sep 2017 18:12:42 -0700 Received: from OMZP1LUMXCA17.uswin.ad.vzwcorp.com (144.8.22.195) by OMZP1LUMXCA20.uswin.ad.vzwcorp.com (144.8.22.198) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Sun, 24 Sep 2017 20:12:40 -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; Sun, 24 Sep 2017 20:12:41 -0500 To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: [PATCH review for 4.9 03/50] watchdog: kempld: fix gcc-4.3 build Thread-Topic: [PATCH review for 4.9 03/50] watchdog: kempld: fix gcc-4.3 build Thread-Index: AQHTNZtiY/vOu8McFUiDbTbYwY0PwA== Date: Mon, 25 Sep 2017 01:12:40 +0000 Message-ID: <20170925011225.10029-3-alexander.levin@verizon.com> References: <20170925011225.10029-1-alexander.levin@verizon.com> In-Reply-To: <20170925011225.10029-1-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 8e302d0e346c..3efa295ac627 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 Mon Sep 25 01:12:59 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: 114160 Delivered-To: patch@linaro.org Received: by 10.140.106.117 with SMTP id d108csp2054175qgf; Sun, 24 Sep 2017 18:22:44 -0700 (PDT) X-Google-Smtp-Source: AOwi7QBBqDeWeOcSYXKudsWo8gxDXlLc8uLcwV+57klx0S8p5DqiWVjIGVydy4bmbdC/fuxNLnKm X-Received: by 10.98.158.78 with SMTP id s75mr6000418pfd.156.1506302564568; Sun, 24 Sep 2017 18:22:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1506302564; cv=none; d=google.com; s=arc-20160816; b=VlT8hd2XtLn8Rq7YNEVZplCwdMAFsOVjvgkmb5h0j7gA9yBRCbmp4yCg9PgHjv2iB8 Qncsk3U2AAw5ue5JxJv7xY19YJe5zxaMkBe8Fmi7XlKm9J358bruNjnwASi8RD/i18/I CFXkXUJCJXtvsOfUV+W+ZNTIl2b8NMJ66hGIRuPYk9ytMej+ELjPY0ExMoGCyHeFwRf6 gdv/ArbHpt3WYJMkL9vVz4sBjLWYwi5PmGKbScy3frjr6jWnR6LXZWffforWpxw28lZq 9lItMwsEBXLdDxTQy00nu61HTwtAE43C+FBNEXExIRjzcChqcXahDKzDkvtIVtVwiYTo eqaQ== 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:to:dkim-signature :dkim-signature:cc:from:dkim-signature:arc-authentication-results; bh=qlPHqvdpe1w3cbW18kn7FrKpMFfkMv3+RihVgjmbkRg=; b=Fm2WioO3QFOa79z3vnW8j5l0VFn4o+es02anyi9gdtWzJ2kYIGEa6lHXbMjXbTDjZj qQoQlW+UfJShW6QPzrP6CW64NtfETCr3oVwfuUBAmEs/Z494vHOfF4gU7gb9GXQ6EL2a Ibl6K3Yo0mP4bCu/H0lauIbZJF1yhJ3Zl5Co7VuOTTLoShi9ElHLsP44F/+QSYaTXUHo eM7g0M+eY1hrSFEF3J9p1DB/5VRWr4rsnEduVOGY6xCa1zWVyTBIUiaWcBG+r9/SO8wi g3Cw52yl6sB6SV1+cK8t8tA0fGDJC/7UenlLSE6fVzGOo8U5hFh3T/8GWdV3q0CQexbj /gnQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@verizon.com header.s=corp header.b=VYnVugud; dkim=fail header.i=@verizon.com header.s=corp header.b=BeWBChdm; dkim=fail header.i=@verizon.com header.s=corp header.b=BeWBChdm; 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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Wysocki" , "Levin, Alexander (Sasha Levin)" Received: from rogue-10-255-192-101.rogue.vzwcorp.com (HELO apollo.verizonwireless.com) ([10.255.192.101]) by fldsmtpi02.verizon.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 25 Sep 2017 01:13:56 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=verizon.com; i=@verizon.com; q=dns/txt; s=corp; t=1506302036; x=1537838036; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=Z3+VljMl4K0HiHsrQVzm9oUQ5p8g6ciOxOgVsikl2uo=; b=BeWBChdmBe1RhGDhnVFy2SwYUAbOMMJqJkCLE1Y0rlkwxWTHHk+JaifL EvF3VbOr+G1pHMH7CvDW3oWLsBx4uj3StqdbyHeXE32lLxEsoa1zdVZpq 9V7vHWpArRz5p6m+Sre4mlx6csiea/CoCtIWg9ZLP1QYX04iByN62BC2q I=; Received: from discovery.odc.vzwcorp.com (HELO mercury.verizonwireless.com) ([10.255.240.25]) by apollo.verizonwireless.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 24 Sep 2017 21:13:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=verizon.com; i=@verizon.com; q=dns/txt; s=corp; t=1506302036; x=1537838036; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=Z3+VljMl4K0HiHsrQVzm9oUQ5p8g6ciOxOgVsikl2uo=; b=BeWBChdmBe1RhGDhnVFy2SwYUAbOMMJqJkCLE1Y0rlkwxWTHHk+JaifL EvF3VbOr+G1pHMH7CvDW3oWLsBx4uj3StqdbyHeXE32lLxEsoa1zdVZpq 9V7vHWpArRz5p6m+Sre4mlx6csiea/CoCtIWg9ZLP1QYX04iByN62BC2q I=; X-Host: discovery.odc.vzwcorp.com Received: from casac1exh003.uswin.ad.vzwcorp.com ([10.11.218.45]) by mercury.verizonwireless.com with ESMTP/TLS/AES128-SHA256; 25 Sep 2017 01:13:56 +0000 Received: from scwexch26apd.uswin.ad.vzwcorp.com (153.114.130.45) by CASAC1EXH003.uswin.ad.vzwcorp.com (10.11.218.45) with Microsoft SMTP Server (TLS) id 14.3.248.2; Sun, 24 Sep 2017 18:13:55 -0700 Received: from OMZP1LUMXCA12.uswin.ad.vzwcorp.com (144.8.22.187) by scwexch26apd.uswin.ad.vzwcorp.com (153.114.130.45) with Microsoft SMTP Server (TLS) id 15.0.1263.5; Sun, 24 Sep 2017 18:13:55 -0700 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; Sun, 24 Sep 2017 20:13:40 -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; Sun, 24 Sep 2017 20:13:40 -0500 To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" Subject: [PATCH review for 4.9 50/50] cpufreq: CPPC: add ACPI_PROCESSOR dependency Thread-Topic: [PATCH review for 4.9 50/50] cpufreq: CPPC: add ACPI_PROCESSOR dependency Thread-Index: AQHTNZtt7B3VQdsEG0aI5jp6W8LOPg== Date: Mon, 25 Sep 2017 01:12:59 +0000 Message-ID: <20170925011225.10029-50-alexander.levin@verizon.com> References: <20170925011225.10029-1-alexander.levin@verizon.com> In-Reply-To: <20170925011225.10029-1-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 d89b8afe23b6..bc3917d6015a 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -244,7 +244,7 @@ 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