linux-kernel - Re: [PATCH v1 4/8] ACPI: utils: use acpi_dev_uid_match() for matching

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] [day] [month] [year] [list]

Message-ID: <ZTN042OQ4kx1PaQt@black.fi.intel.com>
Date:   Sat, 21 Oct 2023 09:51:15 +0300
From:   Raag Jadav <raag.jadav@...el.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        len.brown@...el.com, robert.moore@...el.com,
        mika.westerberg@...ux.intel.com, mark.rutland@....com,
        will@...nel.org, linux@...ck-us.net, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        acpica-devel@...ts.linuxfoundation.org, linux-gpio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-hwmon@...r.kernel.org,
        mallikarjunappa.sangannavar@...el.com, bala.senthil@...el.com
Subject: Re: [PATCH v1 4/8] ACPI: utils: use acpi_dev_uid_match() for
 matching _UID

On Fri, Oct 20, 2023 at 09:11:56PM +0300, Raag Jadav wrote:
> On Fri, Oct 20, 2023 at 07:11:53PM +0200, Rafael J. Wysocki wrote:
> > On Fri, Oct 20, 2023 at 1:38 PM Raag Jadav <raag.jadav@...el.com> wrote:
> > >
> > > On Fri, Oct 20, 2023 at 01:36:27PM +0300, Andy Shevchenko wrote:
> > > > On Fri, Oct 20, 2023 at 02:17:28PM +0530, Raag Jadav wrote:
> > > > > Convert manual _UID references to use standard ACPI helpers.
> > > >
> > > > Yes, while not so obvious this is the correct replacement.
> > > > Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> > >
> > > I think this is the only case which would suffer from the more obvious
> > > behaviour, i.e.
> > >
> > > bool acpi_dev_uid_match(struct acpi_device *adev, const char *uid2)
> > > {
> > >         const char *uid1 = acpi_device_uid(adev);
> > >
> > >         return uid1 && uid2 && !strcmp(uid1, uid2);
> > > }
> > >
> > > That said, we can't be particularly sure about it's potential future users,
> > > especially when the usage will not be limited to just ACPI core since we're
> > > exporting it.
> > 
> > I actually agree with this, so please switch over to the above.
> 
> Will send out a v2, thanks.
> 
> Andy, can I add your review for this?

IIUC you agree with the usage format, but not the actual helper.
So I'm gonna drop it from the first patch and keep it for the rest,
except this one.

Let me know if I'm doing this wrong.

Raag