From: Arnd Bergmann <arnd@arndb.de>
To: Chen Gang <gang.chen.5i5j@gmail.com>
Cc: Lennox Wu <lennox.wu@gmail.com>,
Richard Weinberger <richard@nod.at>,
Lars-Peter Clausen <lars@metafoo.de>,
Guenter Roeck <linux@roeck-us.net>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
linux-iio@vger.kernel.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Tom Gundersen <teg@jklm.no>,
Thierry Reding <thierry.reding@gmail.com>,
Marek Vasut <marex@denx.de>, Liqin Chen <liqin.linux@gmail.com>,
msalter@redhat.com, linux-pwm@vger.kernel.org,
devel@driverdev.osuosl.org, linux-watchdog@vger.kernel.org,
linux-input@vger.kernel.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
knaack.h@gmx.de, Martin Schwidefsky <schwidefsky@de.ibm.com>,
jic23@kernel.org, Geert Uytterhoeven <geert@linux-m68k.org>,
cmetcalf@tilera.com, heiko.carstens@de.ibm.com
Subject: Re: [PATCH] drivers: Let several drivers depends on HAS_IOMEM for 'devm_ioremap_resource'
Date: Tue, 22 Jul 2014 12:32:06 +0200 [thread overview]
Message-ID: <179292068.QXZf3Zcqzf@wuerfel> (raw)
In-Reply-To: <53CB8FC4.4050009@gmail.com>
On Sunday 20 July 2014 17:45:40 Chen Gang wrote:
> >
> > Next, I shall:
> >
> > - Remove HAS_IOMEM and NO_IOMEM from kernel, firstly.
> >
> > - Try to make dummy IOMEM functions for score architecture.
> >
> > - Continue discussing with UML for it.
> >
>
> Oh, sorry, I forgot, after remove IOMEM from kernel, also s390 and tile
> need implement dummy IOMEM if !PCI.
>
> If possible, I shall try to implement the dummy IOMEM in 'asm-generic',
> and let uml, score, s390 and tile use them when they need.
Sorry for going round in circles, but looking back at the original patches,
adding the extra 'depends on HAS_IOMEM' does seem much better than the
other suggestions that came afterwards.
In particular, removing HAS_IOMEM and NO_IOMEM sounds like an awful idea
to me. I'd rather add a HAS_IOPORT in addition to also catch architectures
that have no support for PC-style PIO.
Arnd
next prev parent reply other threads:[~2014-07-22 10:32 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-13 3:07 [PATCH] drivers: Let several drivers depends on HAS_IOMEM for 'devm_ioremap_resource' Chen Gang
2014-07-13 3:14 ` Chen Gang
2014-07-13 14:28 ` Chen Gang
[not found] ` <53C1F7DE.3060102-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-07-13 3:45 ` Marek Vasut
2014-07-13 9:27 ` Lennox Wu
2014-07-13 9:45 ` Richard Weinberger
2014-07-13 10:06 ` Chen Gang
2014-07-13 13:26 ` Lars-Peter Clausen
[not found] ` <53C288F0.3070001-Qo5EllUWu/uELgA04lAiVw@public.gmane.org>
2014-07-13 13:40 ` Richard Weinberger
2014-07-13 13:56 ` Lars-Peter Clausen
2014-07-13 14:03 ` Richard Weinberger
2014-07-13 14:25 ` Lars-Peter Clausen
2014-07-13 15:02 ` Chen Gang
2014-07-13 19:22 ` Greg Kroah-Hartman
2014-07-13 19:33 ` Richard Weinberger
2014-07-13 20:17 ` Greg Kroah-Hartman
[not found] ` <20140713201753.GA29955-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-07-14 8:31 ` Richard Weinberger
2014-07-14 8:48 ` Lars-Peter Clausen
2014-07-14 8:57 ` Richard Weinberger
[not found] ` <53C39B66.4060500-/L3Ra7n9ekc@public.gmane.org>
2014-07-14 9:22 ` Chen Gang
[not found] ` <5A40E1FC-CA61-4AFF-B205-4BAC175AA7AC-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-07-15 0:34 ` Chen Gang
2014-07-15 0:53 ` Guenter Roeck
2014-07-15 1:11 ` Chen Gang
2014-07-15 14:38 ` Chen Gang
[not found] ` <53C53CE1.4090803-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-07-17 1:27 ` Chen Gang
2014-07-17 1:58 ` Guenter Roeck
2014-07-17 8:37 ` Thierry Reding
2014-07-17 8:59 ` Chen Gang
2014-07-17 9:16 ` Dan Carpenter
2014-07-17 9:19 ` Chen Gang
2014-07-23 11:09 ` Chen Gang
2014-07-23 11:30 ` Dan Carpenter
2014-07-23 11:37 ` Chen Gang
2014-07-17 9:20 ` Arnd Bergmann
2014-07-17 9:26 ` Richard Weinberger
2014-07-17 10:28 ` Arnd Bergmann
2014-07-17 10:58 ` Richard Weinberger
2014-07-17 11:24 ` Arnd Bergmann
2014-07-17 11:32 ` Chen Gang
2014-07-17 9:29 ` Chen Gang
2014-07-17 9:51 ` Thierry Reding
2014-07-17 10:38 ` Arnd Bergmann
2014-07-17 11:46 ` Chen Gang
2014-07-17 9:56 ` Thierry Reding
2014-07-17 10:33 ` Arnd Bergmann
2014-07-17 10:55 ` Thierry Reding
2014-07-17 11:20 ` Chen Gang
2014-07-17 10:40 ` Lars-Peter Clausen
2014-07-17 10:48 ` Arnd Bergmann
2014-07-17 11:28 ` Chen Gang
2014-07-17 20:41 ` Chris Metcalf
2014-07-17 21:05 ` Arnd Bergmann
2014-07-18 0:26 ` Chen Gang
2014-07-31 20:09 ` Chris Metcalf
2014-07-17 18:09 ` Richard Weinberger
2014-07-18 0:36 ` Chen Gang
2014-07-18 7:35 ` Richard Weinberger
2014-07-18 10:44 ` Chen Gang
2014-07-18 10:51 ` Richard Weinberger
2014-07-18 15:37 ` Lennox Wu
2014-07-18 18:02 ` Chen Gang
2014-07-20 8:38 ` Chen Gang
2014-07-20 9:45 ` Richard Weinberger
[not found] ` <53CB8FBF.2070206-/L3Ra7n9ekc@public.gmane.org>
2014-07-20 9:51 ` Chen Gang
2014-07-20 9:56 ` Chen Gang
2014-07-20 9:45 ` Chen Gang
2014-07-22 10:32 ` Arnd Bergmann [this message]
2014-07-22 11:29 ` Chen Gang
2014-07-15 0:35 ` Chen Gang
2014-07-14 8:18 ` Thierry Reding
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