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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Tue, 5 Oct 2021 17:21:19 -0700
From:   Saravana Kannan <>
To:     Dmitry Baryshkov <>
Cc:     Rob Herring <>,
        Frank Rowand <>,
        Greg Kroah-Hartman <>,,,
        Stephen Boyd <>,
        linux-arm-msm <>
Subject: Re: [PATCH] Revert "of: property: fw_devlink: Add support for remote-endpoint"

On Fri, Oct 1, 2021 at 6:04 PM Dmitry Baryshkov
<> wrote:
> On 28/09/2021 04:13, Saravana Kannan wrote:
> > On Mon, Sep 27, 2021 at 5:56 PM Dmitry Baryshkov


> >> After doing the analysis, I can confirm that I was too quick regarding
> >> the mdss links preventing it from being probed. Sorry about that.
> >>
> >> It all went up to the DP phy having a link with usb-c-connector. I was
> >> running the kernel 5.15-rc1, so your tcpm fix is already present.
> >> However my colleague has disabled the tcpm device (which I did not
> >> notice). So the driver did not call fw_devlink_purge_absent_suppliers().
> >> The devlink still exists:
> >
> > Let me take a closer look at this before the end of this week. Can you
> > point me to the exact DT changes that were made that's causing this
> > issue? It should help me debug the issue. I have a guess on what the
> > issue might be.
> Here is the kernel source:
> The change that causes PHY driver to silently stop probing, causing an
> avalanche of devices not being probed:

Sorry, I haven't had a chance to look into this yet, but I still have
a strong hunch that this is related to how of_device_is_available()
doesn't recurse up till the root to check if a node is disabled (if a
parent is disabled, the child should also be considered disabled). And
I think patch series should help your case due to a side effect (it
wasn't meant as a fix for your issue). Can you give it a shot?


Powered by blists - more mailing lists