Re: [PATCH 0/5] scsi: ufs: Fix device management timeouts and runtime PM errors

[Bart Van Assche]

On 10/24/26 6:34 PM, Stanley Jhu wrote:
> Add ufshcd_rpm_resume_and_get() around pm_runtime_resume_and_get() and
> convert the 20 external and helper call sites to abort and propagate the
> error when resuming the W-LUN fails. The three lifecycle call sites in
> ufshcd_rpm_dev_flush_recheck_work(), ufshcd_wl_shutdown(), and
> ufshcd_remove(), plus ufshcd_err_handling_prepare(), are intentionally
> left unchanged.

Patches 3/5 - 5/5 introduce a behavior change: a failed runtime suspend 
sets power.runtime_error but leaves the W-LUN in the RPM_ACTIVE state.
Today, sysfs, BSG and hwmon accesses still work in that state. With this 
series they all fail with -EINVAL until the error handler's
ufshcd_recover_pm_error() clears the flag. Is this behavior change
intentional?

Thanks,

Bart.