[PATCH] powerpc: drop port I/O helpers for CONFIG_HAS_IOPORT=n

[Michael Ellerman]

"Arnd Bergmann" <arnd at arndb.de> writes:
> On Thu, Apr 18, 2024, at 08:26, Michael Ellerman wrote:
>> Arnd Bergmann <arnd at kernel.org> writes:
>
>> @@ -692,6 +692,7 @@ static inline void name at                          
>>         \
>>  #define writesw writesw
>>  #define writesl writesl
>>
>> +#ifdef CONFIG_HAS_IOPORT
>>  #define inb inb
>>  #define inw inw
>>  #define inl inl
>> @@ -704,6 +705,8 @@ static inline void name at                          
>>         \
>>  #define outsb outsb
>>  #define outsw outsw
>>  #define outsl outsl
>> +#endif // CONFIG_HAS_IOPORT
>> +
>>  #ifdef __powerpc64__
>>  #define readq  readq
>>  #define writeq writeq
>
> I had included this at first, but then I still ran into
> the same warnings because it ends up pulling in the
> generic outsb() etc from include/asm-generic/io.h
> that relies on setting a non-NULL PCI_IOBASE.

Yes you're right. The above fixes the gcc build, but not clang.

So I think I'll just cherry pick f0a816fb12da ("/dev/port: don't compile
file operations without CONFIG_DEVPORT") into my next and then apply
this. But will see if there's any other build failures over night.

cheers