wrmsr: mark functions static

Mark functions static.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/wrmsr.c b/wrmsr.c
index a1a5eb6..9800841 100644
--- a/wrmsr.c
+++ b/wrmsr.c
@@ -41,7 +41,7 @@
 static const char *proc_stat = "/proc/stat";
 const char *program;
 
-void usage(void)
+static void usage(void)
 {
 	fprintf(stderr, "Usage: %s [options] regno value...\n"
 		"  --help         -h  Print this help\n"
@@ -51,7 +51,7 @@
 		program);
 }
 
-void wrmsr_on_cpu(uint32_t reg, uint64_t data, int cpu)
+static void wrmsr_on_cpu(uint32_t reg, uint64_t data, int cpu)
 {
 	int fd;
 	char msr_file_name[64];
@@ -87,7 +87,7 @@
 }
 
 
-void wrmsr_on_all_cpus(uint32_t reg, uint64_t data)
+static void wrmsr_on_all_cpus(uint32_t reg, uint64_t data)
 {
 	FILE *fp;
 	int retval;