From: "Pali Rohár" <pali@kernel.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: kernel test robot <lkp@intel.com>,
kbuild-all@lists.01.org,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Russell King <linux@armlinux.org.uk>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] arm: ioremap: Fix compilation of code which use pci_remap_iospace() without CONFIG_MMU
Date: Fri, 15 Jul 2022 10:01:55 +0200 [thread overview]
Message-ID: <20220715080155.pwk724qxfv67px36@pali> (raw)
In-Reply-To: <CAK8P3a25JH4=XdS_QRBdTpLhsLyc13XYjt9xq8FcXCNUf+DTiQ@mail.gmail.com>
On Thursday 14 July 2022 22:19:51 Arnd Bergmann wrote:
> On Thu, Jul 14, 2022 at 8:57 PM Pali Rohár <pali@kernel.org> wrote:
> >
> > Custom ARM version of pci_remap_iospace() is implemented only for MMU
> > kernel builds. So do not define pci_remap_iospace() without CONFIG_MMU.
> >
> > See compilation failures:
> > https://lore.kernel.org/r/202112040150.wvyJZIZO-lkp@intel.com/
> > https://lore.kernel.org/r/202112261802.u9iXqdWh-lkp@intel.com/
> > https://lore.kernel.org/r/202201131529.A2s7rKQc-lkp@intel.com/
> > https://lore.kernel.org/r/202203090147.24cUL0De-lkp@intel.com/
> >
> > Fixes: bc02973a06a6 ("arm: ioremap: Implement standard PCI function pci_remap_iospace()")
> > Reported-by: kernel test robot <lkp@intel.com>
> > Signed-off-by: Pali Rohár <pali@kernel.org>
> >
> > ---
> >
> > PING!!!! Is somebody interested in fixing these compile errors? As nobody
> > answered to my emails where I proposed this fix more than half year ago and
> > asked for opinion...
> >
> > https://lore.kernel.org/r/20211204022131.bmhla4gkph7s7hy2@pali/
> > https://lore.kernel.org/r/20211205123209.lyx76daqdwzqwex4@pali/
> > https://lore.kernel.org/r/20211226215135.blcnafbuwhrq5ram@pali/
> > https://lore.kernel.org/r/20220113134938.3tx7iiukphvazvsq@pali/
> > https://lore.kernel.org/r/20220308184851.jmw2xvrapy5wzwof@pali/
> >
>
> Are you sure this still happens in mainline kernels? Since
> commit 2f618d5ef5dd ("ARM: remove support for NOMMU ARMv4/v5")
> it should no longer be possible to disable the MMU in any Arm machines
> other than the Cortex-M based ones, which do not support PCI.
>
> Arnd
I do not know, it it bot who is complaining.
next prev parent reply other threads:[~2022-07-15 8:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-14 18:57 [PATCH] arm: ioremap: Fix compilation of code which use pci_remap_iospace() without CONFIG_MMU Pali Rohár
2022-07-14 19:48 ` Russell King (Oracle)
2022-07-15 8:02 ` Pali Rohár
2022-07-15 16:57 ` Russell King (Oracle)
2022-07-14 20:04 ` Bjorn Helgaas
2022-07-15 8:04 ` Pali Rohár
2022-07-15 16:39 ` Bjorn Helgaas
2022-07-14 20:19 ` Arnd Bergmann
2022-07-15 8:01 ` Pali Rohár [this message]
2022-07-15 16:48 ` Bjorn Helgaas
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