Messages in this thread | | | Date | Tue, 12 Feb 2013 10:29:33 -0800 | Subject | Re: [tip:x86/mm] x86, mm: Use a bitfield to mask nuisance get_user() warnings | From | "H.J. Lu" <> |
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On Tue, Feb 12, 2013 at 10:25 AM, H. Peter Anvin <hpa@zytor.com> wrote: > I just thought up this variant, I'm about to test it, but H.J., do you > see any problems with it? > > #define itype(x) \ > __typeof__(__builtin_choose_expr(sizeof(*(x)) > sizeof(0UL), 0ULL, 0UL)) > > I tried it out with a small test program (attached), and it seems to > work. Next for using it in the kernel... > > -hpa >
It looks OK to me.
-- H.J.
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