Documentation: make functions static to avoid prototype warnings
Signed-off-by: Peter Foley <pefoley2@pefoley.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c b/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c
index f8e8e95e8..81fdd42 100644
--- a/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c
+++ b/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c
@@ -27,19 +27,20 @@
# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
#endif
-uint64_t rdtsc() {
+static uint64_t rdtsc(void)
+{
uint32_t lo, hi;
/* We cannot use "=A", since this would use %rax on x86_64 */
__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
return (uint64_t)hi << 32 | lo;
}
-void sigsegv_expect(int sig)
+static void sigsegv_expect(int sig)
{
/* */
}
-void segvtask(void)
+static void segvtask(void)
{
if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0)
{
@@ -54,13 +55,13 @@
}
-void sigsegv_fail(int sig)
+static void sigsegv_fail(int sig)
{
fprintf(stderr, "FATAL ERROR, rdtsc() failed while enabled\n");
exit(0);
}
-void rdtsctask(void)
+static void rdtsctask(void)
{
if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0)
{