Re: [PATCH] pci: introduce common pci config space accessors

[Rob Herring]

On Mon, Jan 5, 2015 at 12:48 PM, Andreas Mohr <andi@xxxxxxxx> wrote:
> Hi,
>
>> +     if (size == 1)
>> +             *val = readb(addr);
>> +     else if (size == 2)
>> +             *val = readw(addr);
>> +     else
>> +             *val = readl(addr);
> (pci_generic_config_read() and pci_generic_config_write())
>
> switch()
> default: WARN_ON(1);
> ?

If you look at PCI_OP_READ/PCI_OP_WRITE defines, the caller can only
have size of 1, 2 or 4. AFAIK, config accesses don't go thru any other
caller.

Rob
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