/* ADJ_FREQ Skew change test * by: john stultz (johnstul@us.ibm.com) * (C) Copyright IBM 2012 * Licensed under the GPLv2 * * NOTE: This is a meta-test which cranks the ADJ_FREQ knob and * then uses other tests to detect problems. Thus this test requires * that the raw_skew, inconsistency-check and nanosleep tests be * present in the same directory it is run from. * * To build: * $ gcc change_skew.c -o change_skew -lrt * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #ifdef KTEST #include "../kselftest.h" #else static inline int ksft_exit_pass(void) { exit(0); } static inline int ksft_exit_fail(void) { exit(1); } #endif #define NSEC_PER_SEC 1000000000LL int change_skew_test(int ppm) { struct timex tx; int ret; tx.modes = ADJ_FREQUENCY; tx.freq = ppm << 16; ret = adjtimex(&tx); if (ret < 0) { printf("Error adjusting freq\n"); return ret; } ret = system("./raw_skew"); ret |= system("./inconsistency-check"); ret |= system("./nanosleep"); return ret; } int main(int argv, char **argc) { struct timex tx; int i, ret; int ppm[5] = {0, 250, 500, -250, -500}; /* Kill ntpd */ ret = system("killall -9 ntpd"); /* Make sure there's no offset adjustment going on */ tx.modes = ADJ_OFFSET; tx.offset = 0; ret = adjtimex(&tx); if (ret < 0) { printf("Maybe you're not running as root?\n"); return -1; } for (i = 0; i < 5; i++) { printf("Using %i ppm adjustment\n", ppm[i]); ret = change_skew_test(ppm[i]); if (ret) break; } /* Set things back */ tx.modes = ADJ_FREQUENCY; tx.offset = 0; adjtimex(&tx); if (ret) { printf("[FAIL]"); return ksft_exit_fail(); } printf("[OK]"); return ksft_exit_pass(); } ='qt'>
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authorSudeep Holla <sudeep.holla@arm.com>2017-01-03 12:32:47 +0000
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2017-01-03 17:52:48 +0000
commit4309cfe334af9c3565d39e1ce3f9c62183cc67e4 (patch)
treed88d3c6e8fadde138bc95ff4dbcbb9c439d1e6aa /include/net
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
drivers: psci: annotate timer on stack to silence odebug messages
When DEBUG_OBJECTS config is enabled, we get the below odebug warnings: ODEBUG: object is on stack, but not annotated WARNING: CPU: 3 PID: 1304 at kernel/lib/debugobjects.c:300 __debug_object_init+0x1f0/0x458 CPU: 3 PID: 1304 Comm: psci_suspend_te Tainted: G W 4.9.0-06564-gf80f3f199260 #284 task: ffffe9e1b55a1600 task.stack: ffffe9e1b51c0000 PC is at __debug_object_init+0x1f0/0x458 LR is at __debug_object_init+0x1ec/0x458 Call trace: __debug_object_init+0x1f0/0x458 debug_object_activate+0x150/0x260 mod_timer+0xb4/0x4c0 suspend_test_thread+0x1cc/0x3c0 kthread+0x110/0x140 ret_from_fork+0x10/0x40 This patch annotates the timer on the stack using setup_timer_on_stack function to remove the above warnings. Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'include/net')