From 785095112f4198de49760552374f364043c8dbdf Mon Sep 17 00:00:00 2001 From: Gabriele Monaco Date: Mon, 3 Aug 2026 17:06:22 +0200 Subject: [PATCH] rv: Fix 32-bit build of nomiss KUnit test Commit 8da2a8838365 ("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: 8da2a8838365 ("rv: Add KUnit tests for some DA/HA monitors") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202608020311.hYjqOG5k-lkp@intel.com Reviewed-by: Nam Cao Link: https://lore.kernel.org/r/20260803150622.322806-1-gmonaco@redhat.com Signed-off-by: Gabriele Monaco --- kernel/trace/rv/monitors/nomiss/nomiss_kunit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/rv/monitors/nomiss/nomiss_kunit.c b/kernel/trace/rv/monitors/nomiss/nomiss_kunit.c index 1f64249dfcce..763129e2a990 100644 --- a/kernel/trace/rv/monitors/nomiss/nomiss_kunit.c +++ b/kernel/trace/rv/monitors/nomiss/nomiss_kunit.c @@ -28,7 +28,7 @@ static void rv_test_nomiss(struct kunit *test) udelay(10); rv_nomiss_ops.handle_sched_switch(NULL, 0, target, other, TASK_RUNNING); RV_KUNIT_EXPECT_REACTION_HERE(test, ctx) { - udelay(15 + *rv_nomiss_ops.deadline_thresh / 1000); + udelay(15 + div_u64(*rv_nomiss_ops.deadline_thresh, 1000)); rv_nomiss_ops.handle_sched_switch(NULL, 0, other, target, TASK_RUNNING); } }