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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b841065043
There is no need to keep timers tests in sync with external timers repo. Drop support for !KTEST to support for building and running timers tests without kselftest framework. Reference: https://lkml.org/lkml/2017/8/10/952 Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: John Stultz <john.stultz@linaro.org>
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
/* Set tai offset
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* by: John Stultz <john.stultz@linaro.org>
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* (C) Copyright Linaro 2013
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* Licensed under the GPLv2
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <sys/time.h>
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#include <sys/timex.h>
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#include <string.h>
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#include <signal.h>
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#include <unistd.h>
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#include "../kselftest.h"
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int set_tai(int offset)
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{
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struct timex tx;
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memset(&tx, 0, sizeof(tx));
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tx.modes = ADJ_TAI;
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tx.constant = offset;
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return adjtimex(&tx);
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}
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int get_tai(void)
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{
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struct timex tx;
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memset(&tx, 0, sizeof(tx));
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adjtimex(&tx);
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return tx.tai;
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}
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int main(int argc, char **argv)
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{
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int i, ret;
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ret = get_tai();
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printf("tai offset started at %i\n", ret);
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printf("Checking tai offsets can be properly set: ");
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for (i = 1; i <= 60; i++) {
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ret = set_tai(i);
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ret = get_tai();
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if (ret != i) {
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printf("[FAILED] expected: %i got %i\n", i, ret);
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return ksft_exit_fail();
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}
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}
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printf("[OK]\n");
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return ksft_exit_pass();
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}
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