linux-kernel - RE: [PATCH 1/4 v3] GPIO: gpio-dwapb: Enable platform driver binding to MFD driver

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]

Date:	Wed, 10 Sep 2014 10:32:08 +0000
From:	"Chen, Alvin" <alvin.chen@...el.com>
To:	Darren Hart <dvhart@...radead.org>
CC:	Linus Walleij <linus.walleij@...aro.org>,
	Alexandre Courbot <gnurou@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	atull <atull@...nsource.altera.com>,
	"Shevchenko, Andriy" <andriy.shevchenko@...el.com>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"Ong, Boon Leong" <boon.leong.ong@...el.com>,
	"Kweh, Hock Leong" <hock.leong.kweh@...el.com>,
	Sebastian Andrzej Siewior <sebastian@...akpoint.cc>,
	"Westerberg, Mika" <mika.westerberg@...el.com>,
	Arnd Bergmann <arnd@...db.de>
Subject: RE: [PATCH 1/4 v3] GPIO: gpio-dwapb: Enable platform driver binding
 to MFD driver

> > > You cover this specific dependencies with inline ifdefs, but you
> > > lose the CONFIG_OF depends by dropping it, and there are no such
> > > checks in the probe routine. Assumptions of OF are not limited to probe in
> this driver.
> > >
> > > While I would like to see this assumption properly abstracted, the
> > > most expedient/immediate fix is probably to add a depends on OF above.
> >
> > Andriy, how do you think?
> >
> > How about
> > depends on OF_GPIO || MFD_GPIO_DWAPB, or depends on OF_GPIO ||
> > MFD_INTEL_QUARK_I2C_GPIO?
> >
> 
> Upon closer inspection, I think my concern is invalid. the OF header already
> tests for CONFIG_OF and provides no-op / -ENOSYS (tsk tsk) alternatives. So
> long as you can compile with "#CONFIG_OF is not set" as it is, then I withdraw
> my comment.
Yes, it can be compiled with "#CONFIG_OF is not set" and "#CONFIG_OF_GPIO is not set"

> 
> Sorry for the noise.
> 
> --
> Darren Hart
> Intel Open Source Technology Center
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/