Re: [2.6 patch] asm-generic/int-ll64.h: always provide __{s,u}64

From: Harvey Harrison
Date: Mon May 19 2008 - 18:27:43 EST

On Mon, 2008-05-19 at 15:01 -0700, H. Peter Anvin wrote:
> Adrian Bunk wrote:
> > Several compilers offer "long long" without claiming to support C99.
> >
> > Considering how frequent __s64/__u64 are used our userspace headers are
> > anyway unusable without __s64/__u64 available.
> >
> > Always offer __s64/__u64 to non-gcc non-C99 compilers - if they provide
> > "long long" that makes the headers compiling and if they don't they are
> > anyway screwed.
> >
> > Signed-off-by: Adrian Bunk <bunk@xxxxxxxxxx>
> This makes sense to me (I did, however, not want to make that change
> part of the same changeset - one change at a time.)
> The main reason for not just blindly using "long long" has to do with
> the use of gcc -ansi -pedantic in userspace, which is already taken care
> of by the use of __extension__ in the __GNUC__ clause.

If it is going to be unconditionally offered, we could get rid of
__BYTEORDER_HAS_U64__ as a next step. Unless there is something I've


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at