From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-1511654-1518326373-2-1442593909342408498 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, ME_NOAUTH 0.01, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='US', FromHeader='uk', MailFrom='org' X-Spam-charsets: plain='UTF-8' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1518326373; b=rRp6ZZZGLQT9rEIAk/aOWC93sOdJdX1I+WG87m9/F7pjsYI AUfI6bvjwZrVvc5RhxpwsZjBTptwGRtALpBe3SZoTHdbMCWQakAPCrKgtarY44e2 DCxN1OOUIu3eLEBb/W/HbxPXzDoXuOwnquW1DFE9EaGl0Xvil2mdew17rZyac02q i5PSvFZGSDA79Tz+LOlup2ZuWUP1vCv8gXmf1gqAd4kN/iVuaIgVV3Psu1A+Unwl gDmjpPAfCcxHyVU2x1RLHLf0peVnwFoHIxgQvHjvjOIs+0QqFAch74euE2yGv78P i/KeFm779dAo/6nVS+LB6W9W7VESyRtfbqsSbVw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=content-type:content-transfer-encoding :mime-version:from:to:cc:date:message-id:subject:in-reply-to :sender:list-id; s=arctest; t=1518326373; bh=17GuyvbNu6zJVyc56Cf fv2lCV8PAAJqPi2WkwHs2NO4=; b=l+WerhQNRxvW/sOL8paoTUK6IBFmWZ1e7lh IxzD6fhSZOsV08oyTdSXL2JwuQfOvOV9CAyDrwYkWn/DVFwAcV6Q+9DQt/wL0YzM AROiIAPcggmJ/TbVpE/cGTUvJZfLhsVEXUvG3vrpOHkl54HT7ZNShAjXRmKawR3b AoEVoZIzrZMw/2VKLtX2/BKVMMfOFyo01dYop28sGM9x0B6o5sa0FRi8UNw4sqPK /ysvjKTpso+G7lFy2EgGcGNke9VJS53Au77nDbcOOmqgHpQYf/xlMi4xIpbZQXtd +QSgzcw/PkawR7q8zNkBn3gAIYY4eQQtBXI/cAIVU+ffsl07gMQ== ARC-Authentication-Results: i=1; mx2.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=decadent.org.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=decadent.org.uk header.result=pass header_is_org_domain=yes Authentication-Results: mx2.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=none (p=none,has-list-id=yes,d=none) header.from=decadent.org.uk; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=decadent.org.uk header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753071AbeBKFTO (ORCPT ); Sun, 11 Feb 2018 00:19:14 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:42726 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753528AbeBKFS2 (ORCPT ); Sun, 11 Feb 2018 00:18:28 -0500 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Michael Ellerman" , "Shriya" Date: Sun, 11 Feb 2018 04:31:11 +0000 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.16 059/136] powerpc/powernv/cpufreq: Fix the frequency read by /proc/cpuinfo In-Reply-To: X-SA-Exim-Connect-IP: 2a02:8011:400e:2:6f00:88c8:c921:d332 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 3.16.54-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Shriya commit cd77b5ce208c153260ed7882d8910f2395bfaabd upstream. The call to /proc/cpuinfo in turn calls cpufreq_quick_get() which returns the last frequency requested by the kernel, but may not reflect the actual frequency the processor is running at. This patch makes a call to cpufreq_get() instead which returns the current frequency reported by the hardware. Fixes: fb5153d05a7d ("powerpc: powernv: Implement ppc_md.get_proc_freq()") Signed-off-by: Shriya Signed-off-by: Michael Ellerman Signed-off-by: Ben Hutchings --- arch/powerpc/platforms/powernv/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -309,7 +309,7 @@ unsigned long pnv_get_proc_freq(unsigned { unsigned long ret_freq; - ret_freq = cpufreq_quick_get(cpu) * 1000ul; + ret_freq = cpufreq_get(cpu) * 1000ul; /* * If the backend cpufreq driver does not exist,