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Subject[PATCH 04/12] cpumask: pass cpumask by reference to acpi-cpufreq
Pass cpumask_t variables by reference in acpi-cpufreq functions.

Based on:
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86.git

Cc: Len Brown <len.brown@intel.com>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Mike Travis <travis@sgi.com>
---
arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)

--- linux.trees.git.orig/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ linux.trees.git/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -211,22 +211,22 @@ static void drv_write(struct drv_cmd *cm
return;
}

-static u32 get_cur_val(cpumask_t mask)
+static u32 get_cur_val(const cpumask_t *mask)
{
struct acpi_processor_performance *perf;
struct drv_cmd cmd;

- if (unlikely(cpus_empty(mask)))
+ if (unlikely(cpus_empty(*mask)))
return 0;

- switch (per_cpu(drv_data, first_cpu(mask))->cpu_feature) {
+ switch (per_cpu(drv_data, first_cpu(*mask))->cpu_feature) {
case SYSTEM_INTEL_MSR_CAPABLE:
cmd.type = SYSTEM_INTEL_MSR_CAPABLE;
cmd.addr.msr.reg = MSR_IA32_PERF_STATUS;
break;
case SYSTEM_IO_CAPABLE:
cmd.type = SYSTEM_IO_CAPABLE;
- perf = per_cpu(drv_data, first_cpu(mask))->acpi_data;
+ perf = per_cpu(drv_data, first_cpu(*mask))->acpi_data;
cmd.addr.io.port = perf->control_register.address;
cmd.addr.io.bit_width = perf->control_register.bit_width;
break;
@@ -234,7 +234,7 @@ static u32 get_cur_val(cpumask_t mask)
return 0;
}

- cmd.mask = mask;
+ cmd.mask = *mask;

drv_read(&cmd);

@@ -347,13 +347,13 @@ static unsigned int get_cur_freq_on_cpu(
return 0;
}

- freq = extract_freq(get_cur_val(cpumask_of_cpu(cpu)), data);
+ freq = extract_freq(get_cur_val(&cpumask_of_cpu(cpu)), data);
dprintk("cur freq = %u\n", freq);

return freq;
}

-static unsigned int check_freqs(cpumask_t mask, unsigned int freq,
+static unsigned int check_freqs(const cpumask_t *mask, unsigned int freq,
struct acpi_cpufreq_data *data)
{
unsigned int cur_freq;
@@ -449,7 +449,7 @@ static int acpi_cpufreq_target(struct cp
drv_write(&cmd);

if (acpi_pstate_strict) {
- if (!check_freqs(cmd.mask, freqs.new, data)) {
+ if (!check_freqs(&cmd.mask, freqs.new, data)) {
dprintk("acpi_cpufreq_target failed (%d)\n",
policy->cpu);
return -EAGAIN;
--


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