Re: [PATCH v4 0/2] workqueue: Add warnings and check WQ flags usage

[Tetsuo Handa]

On 2026/05/30 3:07, Tejun Heo wrote:
> Hello,
> 
> On Fri, May 29, 2026 at 03:06:38PM +0200, Marco Crivellari wrote:
>> Marco Crivellari (2):
>>   workqueue: Add warnings and fallback if system_{unbound}_wq is used
>>   workqueue: Add warnings and ensure one among WQ_PERCPU or WQ_UNBOUND
>>     is present
> 
> Applied 1-2 to wq/for-7.2. I fixed up minor whitespace on 2/2: added the
> missing space in "else if (" and dropped the redundant parentheses around
> ~WQ_PERCPU.

Please don't use WARN_ONCE(), please use printk() but don't emit WARNING: or BUG: in the string.
syzbot is failing to test linux-next kernels due to commit 21c05ca88a54 ("workqueue:
Add warnings and ensure one among WQ_PERCPU or WQ_UNBOUND is present").
We can't tolerate linux-next being untested until all callers are fixed.