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author | Maxime Ripard <mripard@kernel.org> | 2024-02-26 17:23:00 +0300 |
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committer | Maxime Ripard <mripard@kernel.org> | 2024-02-26 17:23:00 +0300 |
commit | 2f910859724b53f1cd3579246e3d9bebb16d78b8 (patch) | |
tree | 75cd2329b7e737865bf28ea734a2e0649c02a5bf /tools/testing/selftests/kvm/lib/test_util.c | |
parent | 86bf8cfda6d2a6720fa2e6e676c98f0882c9d3d7 (diff) | |
parent | 72fa02fdf83306c52bc1eede28359e3fa32a151a (diff) | |
download | linux-2f910859724b53f1cd3579246e3d9bebb16d78b8.tar.xz |
Merge drm/drm-fixes into drm-misc-fixes
Sima needs a more recent release to apply a patch.
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'tools/testing/selftests/kvm/lib/test_util.c')
-rw-r--r-- | tools/testing/selftests/kvm/lib/test_util.c | 25 |
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; +} |