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authorPeter Foley <pefoley2@pefoley.com>2014-09-25 11:23:15 -0700
committerJiri Kosina <jkosina@suse.cz>2014-09-26 11:02:56 +0200
commit0421fc837c822e86c76884a30a9155e512a5a66a (patch)
treedbe95a10a0705f5caf3e7b85bcbed2709f663138 /Documentation/prctl
parentadb19fb66eeebac07fe37d968725bb8906dadb8e (diff)
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>
Diffstat (limited to 'Documentation/prctl')
-rw-r--r--Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c11
-rw-r--r--Documentation/prctl/disable-tsc-on-off-stress-test.c7
-rw-r--r--Documentation/prctl/disable-tsc-test.c5
3 files changed, 13 insertions, 10 deletions
diff --git a/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c b/Documentation/prctl/disable-tsc-ctxt-sw-stress-test.c
index f8e8e95e81fd..81fdd425ab3e 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 segvtask(void)
}
-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)
{
diff --git a/Documentation/prctl/disable-tsc-on-off-stress-test.c b/Documentation/prctl/disable-tsc-on-off-stress-test.c
index 1fcd91445375..4d83a27627f9 100644
--- a/Documentation/prctl/disable-tsc-on-off-stress-test.c
+++ b/Documentation/prctl/disable-tsc-on-off-stress-test.c
@@ -29,7 +29,8 @@
/* snippet from wikipedia :-) */
-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));
@@ -38,7 +39,7 @@ return (uint64_t)hi << 32 | lo;
int should_segv = 0;
-void sigsegv_cb(int sig)
+static void sigsegv_cb(int sig)
{
if (!should_segv)
{
@@ -55,7 +56,7 @@ void sigsegv_cb(int sig)
rdtsc();
}
-void task(void)
+static void task(void)
{
signal(SIGSEGV, sigsegv_cb);
alarm(10);
diff --git a/Documentation/prctl/disable-tsc-test.c b/Documentation/prctl/disable-tsc-test.c
index 843c81eac235..2541e65cb64b 100644
--- a/Documentation/prctl/disable-tsc-test.c
+++ b/Documentation/prctl/disable-tsc-test.c
@@ -29,14 +29,15 @@ const char *tsc_names[] =
[PR_TSC_SIGSEGV] = "PR_TSC_SIGSEGV",
};
-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_cb(int sig)
+static void sigsegv_cb(int sig)
{
int tsc_val = 0;

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