ACPI processor: make /proc/acpi/processor/*/throttle depends on CONFIG_ACPI_PROCFS
As a feature that would only be used when system is overheating,
the processor t-state control should not be exported to user space.
Make /proc/acpi/processor/*/throttle depends on CONFIG_ACPI_PROCFS,
which is cleared by default.
And we will remove this I/F in 2.6.38.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 7308638..ff36327 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -32,8 +32,10 @@
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/cpufreq.h>
+#ifdef CONFIG_ACPI_PROCFS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#endif
#include <asm/io.h>
#include <asm/uaccess.h>
@@ -1214,6 +1216,7 @@
return result;
}
+#ifdef CONFIG_ACPI_PROCFS
/* proc interface */
static int acpi_processor_throttling_seq_show(struct seq_file *seq,
void *offset)
@@ -1322,3 +1325,4 @@
.llseek = seq_lseek,
.release = single_release,
};
+#endif