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Commit8da2a88383("rv: Add KUnit tests for some DA/HA monitors") introduced a division of a 64-bit value by 1000 in the nomiss KUnit test. This does not compile on 32-bit systems, as standard division of 64-bit values leads to an undefined reference to __udivdi3. Fix the build on 32-bit systems by using div_u64(). Fixes:8da2a88383("rv: Add KUnit tests for some DA/HA monitors") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202608020311.hYjqOG5k-lkp@intel.com Reviewed-by: Nam Cao <namcao@linutronix.de> Link: https://lore.kernel.org/r/20260803150622.322806-1-gmonaco@redhat.com Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/kernel.h>
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#include <linux/rv.h>
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#include <rv/kunit.h>
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#include <trace/events/sched.h>
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#include "nomiss_kunit.h"
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#if IS_REACHABLE(CONFIG_RV_MON_NOMISS)
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static void rv_test_nomiss(struct kunit *test)
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{
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struct task_struct *target = rv_kunit_alloc_mock_task(test);
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struct task_struct *other = rv_kunit_alloc_mock_task(test);
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struct rv_kunit_ctx *ctx = test->priv;
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prepare_test(test, &rv_nomiss_ops.mon);
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target->pid = 99;
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target->policy = SCHED_DEADLINE;
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target->dl.runtime = 10000;
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target->dl.dl_deadline = 20000;
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rv_nomiss_ops.handle_newtask(NULL, target, 0);
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/* Task gets preempted and can't terminate before deadline */
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rv_nomiss_ops.handle_sched_switch(NULL, 0, other, target, TASK_RUNNING);
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rv_nomiss_ops.handle_dl_replenish(NULL, &target->dl, 0, DL_TASK);
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udelay(10);
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rv_nomiss_ops.handle_sched_switch(NULL, 0, target, other, TASK_RUNNING);
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RV_KUNIT_EXPECT_REACTION_HERE(test, ctx) {
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udelay(15 + div_u64(*rv_nomiss_ops.deadline_thresh, 1000));
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rv_nomiss_ops.handle_sched_switch(NULL, 0, other, target, TASK_RUNNING);
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}
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}
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#else
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#define rv_test_nomiss rv_test_stub
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#endif
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