diff options
author | Thomas Renninger <trenn@suse.de> | 2007-04-19 15:49:09 +0200 |
---|---|---|
committer | Dave Jones <davej@redhat.com> | 2007-04-26 14:32:02 -0400 |
commit | 632786ce9ff6206951ee4c84fe5c0d5c1d12f4cc (patch) | |
tree | c432e55bd84c566bcf7b2c84107d5c0178a20976 /drivers/acpi/processor_perflib.c | |
parent | 22c970f3468a6766b362d57fa32ebb92cb8cd6db (diff) | |
download | linux-632786ce9ff6206951ee4c84fe5c0d5c1d12f4cc.tar.bz2 |
[CPUFREQ] Remove deprecated /proc/acpi/processor/performance write support
Remove deprecated /proc/acpi/processor/performance write support
Writing to /proc/acpi/processor/xy/performance interferes with sysfs
cpufreq interface. Also removes buggy cpufreq_set_policy exported symbol.
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/acpi/processor_perflib.c')
-rw-r--r-- | drivers/acpi/processor_perflib.c | 46 |
1 files changed, 1 insertions, 45 deletions
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 2f2e7964226d..c4efc0c17f8f 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -433,49 +433,6 @@ static int acpi_processor_perf_open_fs(struct inode *inode, struct file *file) PDE(inode)->data); } -static ssize_t -acpi_processor_write_performance(struct file *file, - const char __user * buffer, - size_t count, loff_t * data) -{ - int result = 0; - struct seq_file *m = file->private_data; - struct acpi_processor *pr = m->private; - struct acpi_processor_performance *perf; - char state_string[12] = { '\0' }; - unsigned int new_state = 0; - struct cpufreq_policy policy; - - - if (!pr || (count > sizeof(state_string) - 1)) - return -EINVAL; - - perf = pr->performance; - if (!perf) - return -EINVAL; - - if (copy_from_user(state_string, buffer, count)) - return -EFAULT; - - state_string[count] = '\0'; - new_state = simple_strtoul(state_string, NULL, 0); - - if (new_state >= perf->state_count) - return -EINVAL; - - cpufreq_get_policy(&policy, pr->id); - - policy.cpu = pr->id; - policy.min = perf->states[new_state].core_frequency * 1000; - policy.max = perf->states[new_state].core_frequency * 1000; - - result = cpufreq_set_policy(&policy); - if (result) - return result; - - return count; -} - static void acpi_cpufreq_add_file(struct acpi_processor *pr) { struct proc_dir_entry *entry = NULL; @@ -487,10 +444,9 @@ static void acpi_cpufreq_add_file(struct acpi_processor *pr) /* add file 'performance' [R/W] */ entry = create_proc_entry(ACPI_PROCESSOR_FILE_PERFORMANCE, - S_IFREG | S_IRUGO | S_IWUSR, + S_IFREG | S_IRUGO, acpi_device_dir(device)); if (entry){ - acpi_processor_perf_fops.write = acpi_processor_write_performance; entry->proc_fops = &acpi_processor_perf_fops; entry->data = acpi_driver_data(device); entry->owner = THIS_MODULE; |