On Sun, Jun 24, 2007 at 08:07:10PM +0200, Arnd Bergmann wrote: > One minor issue though: > While BUILD_BUG_ON and a few other macros in linux/kernel.h are currently > exported to user space, I would think that they should really be hidden > in #ifdef __KERNEL__, which means that we also need something like > > #ifdef __KERNEL__ > #define _IOC_TYPECHECK(t) \ > (sizeof(t) + BUILD_BUG_ON_ZERO(sizeof(t) == sizeof(t[1]) && \ > sizeof(t) < (1 << _IOC_SIZEBITS))) > #else > #define _IOC_TYPECHECK(t) sizeof(t) > #endif Point, but then we might want to export the damn thing in properly named version (i.e. put it into __.... reserved namespace). It doesn't depend on anything kernel-specific... FWIW, the current version suffers from similar problem - it's outside of __KERNEL__ in userland-exported header and it can lead to breakage when included in build by something other than gcc... - To unsubscribe from this list: send the line "unsubscribe linux-sparse" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
