diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2026-04-02 22:59:03 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-04-03 07:14:24 -1000 |
| commit | c6890f36fc49848c61d2113a3442eb1b59e0bc4b (patch) | |
| tree | 7b001e2f545aded14218352d2d070e1644289d02 /lib/test_workqueue.c | |
| parent | 41e3ccca00b374b7f39cf68e818b59a921cd7069 (diff) | |
workqueue: avoid unguarded 64-bit division
The printk() requires a division that is not allowed on 32-bit architectures:
x86_64-linux-ld: lib/test_workqueue.o: in function `test_workqueue_init':
test_workqueue.c:(.init.text+0x36f): undefined reference to `__udivdi3'
Use div_u64() to print the resulting elapsed microseconds.
Fixes: 24b2e73f9700 ("workqueue: add test_workqueue benchmark module")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'lib/test_workqueue.c')
| -rw-r--r-- | lib/test_workqueue.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/test_workqueue.c b/lib/test_workqueue.c index f2ae1ac4bd93..99e160bd5ad1 100644 --- a/lib/test_workqueue.c +++ b/lib/test_workqueue.c @@ -242,7 +242,7 @@ static int __init run_bench(int n_threads, const char *scope, const char *label) pr_info("test_workqueue: %-16s %llu items/sec\tp50=%llu\tp90=%llu\tp95=%llu ns\n", label, - elapsed_us ? total_items * 1000000ULL / elapsed_us : 0, + elapsed_us ? div_u64(total_items * 1000000ULL, elapsed_us) : 0, all_latencies[total_items * 50 / 100], all_latencies[total_items * 90 / 100], all_latencies[total_items * 95 / 100]); |