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author | Mark Brown <broonie@kernel.org> | 2024-02-19 16:58:41 +0000 |
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committer | Mark Brown <broonie@kernel.org> | 2024-02-19 16:58:41 +0000 |
commit | d68ce3aa8142333a96a071a9a0207f21c04e54cc (patch) | |
tree | 15754707ec571eb08c8d6308fe2459e46b8a5468 /tools/testing/selftests/kvm/lib/test_util.c | |
parent | ec29a4d9b7c7329afc61e7932cb91e9b292b2b74 (diff) | |
parent | b401b621758e46812da61fa58a67c3fd8d91de0d (diff) |
regulator: Merge up v6.8-rc5
There are dependencies on the PWM fixes for some new work on the PWM
driver.
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; +} |