From: Gregory Greenman <gregory.greenman@xxxxxxxxx> type=maint ticket=none Signed-off-by: Gregory Greenman <gregory.greenman@xxxxxxxxx> --- backport/backport-include/linux/kernel.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/backport/backport-include/linux/kernel.h b/backport/backport-include/linux/kernel.h index 36bb755e353c..2555e3c4a0a8 100644 --- a/backport/backport-include/linux/kernel.h +++ b/backport/backport-include/linux/kernel.h @@ -5,6 +5,17 @@ #include <linux/bug.h> #include <linux/version.h> +#if LINUX_VERSION_IS_LESS(4,17,0) + +/* + * This returns a constant expression while determining if an argument is + * a constant expression, most importantly without evaluating the argument. + * Glory to Martin Uecker <Martin.Uecker@xxxxxxxxxxxxxxxxxxxxx> + */ +#define __is_constexpr(x) \ + (sizeof(int) == sizeof(*(8 ? ((void *)((long)(x) * 0l)) : (int *)8))) + +#endif /* < 4.17.0 */ #if LINUX_VERSION_IS_LESS(4,6,0) #define kstrtobool LINUX_BACKPORT(kstrtobool) -- 2.37.3 -- To unsubscribe from this list: send the line "unsubscribe backports" in
