linux-kernel - Re: [PATCH 1/3] pci: Add a generic, weakly-linked pcibios_fixup

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Date:   Sat, 24 Jun 2017 14:32:25 -0700 (PDT)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     geert@...ux-m68k.org
CC:     sparclinux@...r.kernel.org
Subject:     Re: [PATCH 1/3] pci: Add a generic, weakly-linked pcibios_fixup_bus

On Sat, 24 Jun 2017 02:34:06 PDT (-0700), geert@...ux-m68k.org wrote:
> Hi Palmer,
>
> On Sat, Jun 24, 2017 at 3:50 AM, Palmer Dabbelt <palmer@...belt.com> wrote:
>> Multiple architectures define this as an empty function, and I'm adding
>> another one as part of the RISC-V port.  This adds a __weak version of
>> pci_fixup_bios and deletes the now obselete ones in a handful of ports.
>>
>> The only functional change should be that microblaze used to export
>> pcibios_fixup_bus.  None of the other architectures export this, so I
>> just dropped it.
>>
>> Signed-off-by: Palmer Dabbelt <palmer@...belt.com>
>
> Given this is an empty function, wouldn't it make more sense to have
> a static inline in asm-generic, protected by #ifndef pcibios_fixup_bus?

I think the PCI people were considering changing this from a per-arch function
to a per-controller function, so I think the inline won't help any there.  I
think since they hope to eventually clean up all the __weak functions it fits a
bit better this way, but I'm really fine with anything here.