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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-02-19 07:51:35 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-02-19 07:51:35 +0100
commit07749061b837a1268146dc8a620a522253cea877 (patch)
tree3708ac3f1a088869daf7e9826bc4b56abfcdac74 /tools/testing/selftests/kvm/lib/test_util.c
parent5c0941c55e5f681ffb05f395222ac673460bb3d0 (diff)
parentb401b621758e46812da61fa58a67c3fd8d91de0d (diff)
downloadlinux-stable-07749061b837a1268146dc8a620a522253cea877.tar.gz
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Merge 6.8-rc5 into driver-core-next
We need the driver core changes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/kvm/lib/test_util.c')
-rw-r--r--tools/testing/selftests/kvm/lib/test_util.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/lib/test_util.c b/tools/testing/selftests/kvm/lib/test_util.c
index 5d7f28b02d73..5a8f8becb129 100644
--- a/tools/testing/selftests/kvm/lib/test_util.c
+++ b/tools/testing/selftests/kvm/lib/test_util.c
@@ -392,3 +392,28 @@ char *strdup_printf(const char *fmt, ...)
return str;
}
+
+#define CLOCKSOURCE_PATH "/sys/devices/system/clocksource/clocksource0/current_clocksource"
+
+char *sys_get_cur_clocksource(void)
+{
+ char *clk_name;
+ struct stat st;
+ FILE *fp;
+
+ fp = fopen(CLOCKSOURCE_PATH, "r");
+ TEST_ASSERT(fp, "failed to open clocksource file, errno: %d", errno);
+
+ TEST_ASSERT(!fstat(fileno(fp), &st), "failed to stat clocksource file, errno: %d",
+ errno);
+
+ clk_name = malloc(st.st_size);
+ TEST_ASSERT(clk_name, "failed to allocate buffer to read file");
+
+ TEST_ASSERT(fgets(clk_name, st.st_size, fp), "failed to read clocksource file: %d",
+ ferror(fp));
+
+ fclose(fp);
+
+ return clk_name;
+}