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Re: [PATCH v3 1/6] PCI: designware: remove wrong io_base assignment

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject Re: [PATCH v3 1/6] PCI: designware: remove wrong io_base assignment
Date 2015-11-23 17:50 +0100
Message-ID <qy2ts-4pB-43@gated-at.bofh.it> (permalink)
References <qxVBF-8jJ-11@gated-at.bofh.it> <qxWxJ-tE-31@gated-at.bofh.it> <qy2a7-4i0-33@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Monday 23 November 2015 18:23:47 Stanimir Varbanov wrote:
> >>
> >> Fixes: 0021d22b73d6 ("PCI: designware: Use of_pci_get_host_bridge_resources()
> >> to parse DT")
> >> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
> 
> I think the bug is introduced in:
> 
> cbce7900598c ("PCI: designware: Make driver arch-agnostic")
> 
> cause the io_base is correctly calculated in 0021d22b73d6, do you agree?


I think cbce7900598c just slightly changes the io_base value, but
it's still referring to a bus address, not a cpu address, both before
and after the patch.

0021d22b73d6 hower seems to remove the correct 'pp->io_base = range.cpu_addr;'
and replaces it with 'pp->io_base = pp->io->start;', so it's now in
the wrong address space.

	Arnd
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Thread

[PATCH v3 1/6] PCI: designware: remove wrong io_base assignment Stanimir Varbanov <stanimir.varbanov@linaro.org> - 2015-11-23 10:30 +0100
  Re: [PATCH v3 1/6] PCI: designware: remove wrong io_base assignment Arnd Bergmann <arnd@arndb.de> - 2015-11-23 11:10 +0100
    RE: [PATCH v3 1/6] PCI: designware: remove wrong io_base assignment Gabriele Paoloni <gabriele.paoloni@huawei.com> - 2015-11-23 11:30 +0100
      Re: [PATCH v3 1/6] PCI: designware: remove wrong io_base assignment Stanimir Varbanov <stanimir.varbanov@linaro.org> - 2015-11-23 17:30 +0100
        Re: [PATCH v3 1/6] PCI: designware: remove wrong io_base assignment Arnd Bergmann <arnd@arndb.de> - 2015-11-23 17:50 +0100
          Re: [PATCH v3 1/6] PCI: designware: remove wrong io_base assignment Stanimir Varbanov <stanimir.varbanov@linaro.org> - 2015-11-24 10:30 +0100

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