diff options
Diffstat (limited to 'Documentation/prctl/disable-tsc-test.c')
| -rw-r--r-- | Documentation/prctl/disable-tsc-test.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/prctl/disable-tsc-test.c b/Documentation/prctl/disable-tsc-test.c index 843c81eac23..2541e65cb64 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; |