linux-kernel - Re: [PATCH V1] ufs: ufs-qcom: Fix UFS OCP issue during UFS power down(PC=3)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <yq1pladxdaj.fsf@ca-mkp.ca.oracle.com>
Date: Thu, 23 Oct 2025 22:08:14 -0400
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: Nitin Rawat <nitin.rawat@....qualcomm.com>
Cc: mani@...nel.org, James.Bottomley@...senPartnership.com,
        martin.petersen@...cle.com, bvanassche@....org,
        konrad.dybcio@....qualcomm.com, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [PATCH V1] ufs: ufs-qcom: Fix UFS OCP issue during UFS power
 down(PC=3)


Nitin,

> To prevent this, a 10ms delay is added after asserting HWRST. This
> allows the reset operation to complete while power rails remain active
> and in high-power mode.
>
> Currently there is no way for Host to query whether the reset is
> completed or not and hence this the delay is based on experiments
> with Qualcomm UFS controllers across multiple UFS vendors.

Applied to 6.18/scsi-fixes, thanks!

-- 
Martin K. Petersen