1 files changed, 14 insertions, 14 deletions
diff --git a/tools/testing/selftests/proc/proc-uptime.h b/tools/testing/selftests/proc/proc-uptime.h
index dc6a42b1d6b0..730cce4a3d73 100644
--- a/tools/testing/selftests/proc/proc-uptime.h
+++ b/tools/testing/selftests/proc/proc-uptime.h
@@ -19,10 +19,22 @@
 #include <string.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <time.h>
 
 #include "proc.h"
 
-static void proc_uptime(int fd, uint64_t *uptime, uint64_t *idle)
+static uint64_t clock_boottime(void)
+{
+	struct timespec ts;
+	int err;
+
+	err = clock_gettime(CLOCK_BOOTTIME, &ts);
+	assert(err >= 0);
+
+	return (ts.tv_sec * 100) + (ts.tv_nsec / 10000000);
+}
+
+static uint64_t proc_uptime(int fd)
 {
 	uint64_t val1, val2;
 	char buf[64], *p;
@@ -43,18 +55,6 @@ static void proc_uptime(int fd, uint64_t *uptime, uint64_t *idle)
 	assert(p[3] == ' ');
 
 	val2 = (p[1] - '0') * 10 + p[2] - '0';
-	*uptime = val1 * 100 + val2;
-
-	p += 4;
-
-	val1 = xstrtoull(p, &p);
-	assert(p[0] == '.');
-	assert('0' <= p[1] && p[1] <= '9');
-	assert('0' <= p[2] && p[2] <= '9');
-	assert(p[3] == '\n');
-
-	val2 = (p[1] - '0') * 10 + p[2] - '0';
-	*idle = val1 * 100 + val2;
 
-	assert(p + 4 == buf + rv);
+	return val1 * 100 + val2;
 }