Re: [GIT PULL] Hisilicon fixes for v5.2

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On 25/06/2019 14:31, John Garry wrote:
On 25/06/2019 14:03, Olof Johansson wrote:
are available in the Git repository at:
> >
> >   git://github.com/hisilicon/linux-hisi.git tags/hisi-fixes-for-5.2
> >
> > for you to fetch changes up to
07c811af1c00d7b4212eac86900b023b6405a954:
> >
> >   lib: logic_pio: Enforce LOGIC_PIO_INDIRECT region ops are set
at registration (2019-06-25 09:40:42 +0100)
> >
> > ----------------------------------------------------------------
> > Hisilicon fixes for v5.2-rc
> >
> > - fixed RCU usage in logical PIO
> > - Added a function to unregister a logical PIO range in logical PIO
> >   to support the fixes in the hisi-lpc driver
> > - fixed and optimized hisi-lpc driver to avoid potential
use-after-free
> >   and driver unbind crash
>
> Merged to fixes, thanks.

This broke arm64 allmodconfig:

       arm64.allmodconfig:
drivers/bus/hisi_lpc.c:656:3: error: implicit declaration of function
'hisi_lpc_acpi_remove'; did you mean 'hisi_lpc_acpi_probe'?
[-Werror=implicit-function-declaration]

As an aside, I find it a little strange that arm64 allmodconfig does not have CONFIG_ACPI set. It used to have it set, and this patch stopped that:

5bcd44083a082f314032969cd6db1eb8275ac77a is the first bad commit
commit 5bcd44083a082f314032969cd6db1eb8275ac77a
Author: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
Date:   Mon Jul 23 10:57:29 2018 +0900

    drivers: acpi: add dependency of EFI for arm64

As Ard suggested, CONFIG_ACPI && !CONFIG_EFI doesn't make sense on arm64,
    while CONFIG_ACPI and CONFIG_CPU_BIG_ENDIAN doesn't make sense either.

    As CONFIG_EFI already has a dependency of !CONFIG_CPU_BIG_ENDIAN, it is
    good enough to add a dependency of CONFIG_EFI to avoid any useless
    combination of configuration.

    This bug, reported by Will, will be revealed when my patch series,
    "arm64: kexec,kdump: fix boot failures on acpi-only system," is applied
    and the kernel is built under allmodconfig.

    Signed-off-by: AKASHI Takahiro <takahiro.akashi@xxxxxxxxxx>
    Suggested-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
    Signed-off-by: Will Deacon <will.deacon@xxxxxxx>

That patch stopped many configs being set for allmodconfig.

With this change, CONFIG_EFI is not set. I think that this is because CONFIG_CPU_BIG_ENDIAN is set for arm64 allmodconfig.

Any opinion on this? Could we change CONFIG_CPU_BIG_ENDIAN to be unset for arm64?




Uhhh, that's my fault - I didn't provide a stub for !ACPI. Sorry. I'll
send a fixed v3 series.


Please build and test your branches before you send pull requests, Wei.

I've dropped the branch again; please re-submit when fixed. I think
it's probably 5.3 material now.


Thanks,
John


-Olof

.







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