I want to get rid of all "extern inline" in the kernel.
Why?
"extern inline" generates a warning with -Wmissing-prototypes and I'm
currently working on getting the kernel cleaned up for adding this to
the CFLAGS since it will help us to avoid a nasty class of runtime
errors.
"extern inline" was required at the times when
__attribute__((always_inline)) wasn't avalable.
Nowadays, we use "static inline", and if there are places that really
need a forced inline, we use "static __always_inline".
Can someone tell me which of the Alpha "static inline"'s need for some
reason an __always_inline?
And a related question:
Does the never defined __IO_EXTERN_INLINE still have any purpose?
cu
Adrian
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On Mon, Aug 21, 2006 at 01:54:38AM +0200, Adrian Bunk wrote:
> Why?
Because it inlines when it needs to, and does not generate
out of line code when its address is taken.
> Can someone tell me which of the Alpha "static inline"'s need for some
> reason an __always_inline?
There shouldn't be any.
> Does the never defined __IO_EXTERN_INLINE still have any purpose?
It is defined.
$ grep 'define __IO_EXTERN_INLINE' * | wc -l
12
r~
On Mon, Aug 21, 2006 at 02:55:26PM -0700, Richard Henderson wrote:
> On Mon, Aug 21, 2006 at 01:54:38AM +0200, Adrian Bunk wrote:
> > Why?
>
> Because it inlines when it needs to, and does not generate
> out of line code when its address is taken.
Ah, I start to remember.
Is this actually used anywhere in the kernel?
> > Can someone tell me which of the Alpha "static inline"'s need for some
> > reason an __always_inline?
>
> There shouldn't be any.
>
> > Does the never defined __IO_EXTERN_INLINE still have any purpose?
>
> It is defined.
>
> $ grep 'define __IO_EXTERN_INLINE' * | wc -l
> 12
Ups, I was blind...
> r~
cu
Adrian
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