From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752938AbbIZMrf (ORCPT ); Sat, 26 Sep 2015 08:47:35 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58690 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752881AbbIZMrc (ORCPT ); Sat, 26 Sep 2015 08:47:32 -0400 From: Denys Vlasenko To: Viresh Kumar , "Rafael J. Wysocki" Cc: Denys Vlasenko , Ingo Molnar , Bartosz Golaszewski , "H. Peter Anvin" , Benoit Cousson , Fenghua Yu , Guenter Roeck , Jean Delvare , Jonathan Corbet , Peter Zijlstra , Thomas Gleixner , x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] cpufreq: p4-clockmod: Replace bool_int_array[NR_CPUS] with bitmap Date: Sat, 26 Sep 2015 14:47:18 +0200 Message-Id: <1443271638-2568-2-git-send-email-dvlasenk@redhat.com> In-Reply-To: <1443271638-2568-1-git-send-email-dvlasenk@redhat.com> References: <1443271638-2568-1-git-send-email-dvlasenk@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Straigntforward conversion from int has_N44_O17_errata[NR_CPUS] to DECLARE_BITMAP(has_N44_O17_errata, NR_CPUS) Saves about 2 kbytes in bss for NR_CPUS=512. Signed-off-by: Denys Vlasenko CC: Viresh Kumar CC: Rafael J. Wysocki CC: Ingo Molnar CC: Bartosz Golaszewski CC: H. Peter Anvin CC: Benoit Cousson CC: Fenghua Yu CC: Guenter Roeck CC: Jean Delvare CC: Jonathan Corbet CC: Peter Zijlstra CC: Thomas Gleixner CC: x86@kernel.org CC: linux-kernel@vger.kernel.org --- drivers/cpufreq/p4-clockmod.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c index 5dd95da..dd15810 100644 --- a/drivers/cpufreq/p4-clockmod.c +++ b/drivers/cpufreq/p4-clockmod.c @@ -49,7 +49,7 @@ enum { #define DC_ENTRIES 8 -static int has_N44_O17_errata[NR_CPUS]; +static DECLARE_BITMAP(has_N44_O17_errata, NR_CPUS); static unsigned int stock_freq; static struct cpufreq_driver p4clockmod_driver; static unsigned int cpufreq_p4_get(unsigned int cpu); @@ -66,7 +66,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate) if (l & 0x01) pr_debug("CPU#%d currently thermal throttled\n", cpu); - if (has_N44_O17_errata[cpu] && + if (test_bit(cpu, has_N44_O17_errata) && (newstate == DC_25PT || newstate == DC_DFLT)) newstate = DC_38PT; @@ -182,7 +182,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) case 0x0f0a: case 0x0f11: case 0x0f12: - has_N44_O17_errata[policy->cpu] = 1; + set_bit(policy->cpu, has_N44_O17_errata); pr_debug("has errata -- disabling low frequencies\n"); } @@ -199,7 +199,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy) /* table init */ for (i = 1; (p4clockmod_table[i].frequency != CPUFREQ_TABLE_END); i++) { - if ((i < 2) && (has_N44_O17_errata[policy->cpu])) + if ((i < 2) && test_bit(policy->cpu, has_N44_O17_errata)) p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID; else p4clockmod_table[i].frequency = (stock_freq * i)/8; -- 1.8.1.4