Messages in this thread Patch in this message | | | From | Denys Vlasenko <> | Subject | [PATCH] cpufreq: p4-clockmod: Replace bool_int_array[NR_CPUS] with bitmap | Date | Sat, 26 Sep 2015 14:47:18 +0200 |
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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 <dvlasenk@redhat.com> CC: Viresh Kumar <viresh.kumar@linaro.org> CC: Rafael J. Wysocki <rjw@rjwysocki.net> CC: Ingo Molnar <mingo@kernel.org> CC: Bartosz Golaszewski <bgolaszewski@baylibre.com> CC: H. Peter Anvin <hpa@zytor.com> CC: Benoit Cousson <bcousson@baylibre.com> CC: Fenghua Yu <fenghua.yu@intel.com> CC: Guenter Roeck <linux@roeck-us.net> CC: Jean Delvare <jdelvare@suse.de> CC: Jonathan Corbet <corbet@lwn.net> CC: Peter Zijlstra <peterz@infradead.org> CC: Thomas Gleixner <tglx@linutronix.de> 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
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