[PATCH v2] ufs: core: Avoid IRQ thread wakeup during active UIC command

[Peter Wang (王信友)]

On Wed, 2026-03-18 at 09:14 +0100, Marek Szyprowski wrote:
> CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 7.0.0-rc1+ #16536
> PREEMPT
> 

Hi Marek,

I stressed the UIC command for 24 hours but could not 
reproduce the issue. I also found that the line containing
"PREEMPT" might be a key point.

So I suspect that lockdep might be misjudging with "PREEMPT"
setting. After all, using spin_lock_irqsave inside the
ISR should be fine:
    guard(spinlock_irqsave)(hba->host->host_lock);

Would it be possible to try disabling lockdep and see what
happens? It seems lockdep is even getting the lock wrong 
(hba->host->host_lock, not shost->host_lock).


> 
> You have probably mixed my report with this one 
> https://lore.kernel.org/all/abmNkRC_vSVaP2sC@mail.iam.tj/ 
> 
> Best regards


Yes, I mixed it up with this one because the call trace 
looks the same.

Thanks
Peter