linux-kernel - RE: [PATCH v1 1/1] scsi: ufs: core: add device level exception support

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Message-ID:
 <PH7PR16MB61969A76CDEA46C4F81F2465E5D22@PH7PR16MB6196.namprd16.prod.outlook.com>
Date: Fri, 14 Mar 2025 07:09:37 +0000
From: Avri Altman <Avri.Altman@...disk.com>
To: "Bao D. Nguyen" <quic_nguyenb@...cinc.com>, Bart Van Assche
	<bvanassche@....org>, "quic_cang@...cinc.com" <quic_cang@...cinc.com>,
	"quic_nitirawa@...cinc.com" <quic_nitirawa@...cinc.com>,
	"avri.altman@....com" <avri.altman@....com>, "peter.wang@...iatek.com"
	<peter.wang@...iatek.com>, "manivannan.sadhasivam@...aro.org"
	<manivannan.sadhasivam@...aro.org>, "minwoo.im@...sung.com"
	<minwoo.im@...sung.com>, "adrian.hunter@...el.com" <adrian.hunter@...el.com>,
	"martin.petersen@...cle.com" <martin.petersen@...cle.com>
CC: "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>, Alim Akhtar
	<alim.akhtar@...sung.com>, "James E.J. Bottomley"
	<James.Bottomley@...senPartnership.com>, Bean Huo <beanhuo@...ron.com>, Ziqi
 Chen <quic_ziqichen@...cinc.com>, Keoseong Park <keosung.park@...sung.com>,
	Gwendal Grignou <gwendal@...omium.org>, Al Viro <viro@...iv.linux.org.uk>,
	Eric Biggers <ebiggers@...gle.com>, open list <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v1 1/1] scsi: ufs: core: add device level exception
 support

> >> +    if (status & hba->ee_drv_mask & MASK_EE_DEV_LVL_EXCEPTION) {
> >> +        hba->dev_lvl_exception_count++;
> >> +        sysfs_notify(&hba->dev->kobj, NULL, "device_lvl_exception");
> >> +    }
> >
> > sysfs_notify() may sleep and hence must not be called from an
> > interrupt handler.
> I will look into this.
ufshcd_exception_event_handler is a worker.

Thanks,
Avri
> 
> Thanks, Bao
> 
> >
> > Thanks,
> >
> > Bart.