From: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx>
In __clamp_once(),
__builtin_choose_expr(__is_constexpr((lo) > (hi)), (lo) <= (hi), true)
is equivalent to:
!is_const_false((lo) <= (hi))
Apply is_const_false() to simplify __clamp_once().
Signed-off-by: Vincent Mailhol <mailhol.vincent@xxxxxxxxxx>
---
include/linux/minmax.h | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/include/linux/minmax.h b/include/linux/minmax.h
index 98008dd92153db10c672155bca93201ffabee994..431bf76ac460a11a2e4af23acd90c0d26e99c862 100644
--- a/include/linux/minmax.h
+++ b/include/linux/minmax.h
@@ -111,8 +111,7 @@
__auto_type uval = (val); \
__auto_type ulo = (lo); \
__auto_type uhi = (hi); \
- static_assert(__builtin_choose_expr(__is_constexpr((lo) > (hi)), \
- (lo) <= (hi), true), \
+ static_assert(!is_const_false((lo) <= (hi)), \
"clamp() low limit " #lo " greater than high limit " #hi); \
BUILD_BUG_ON_MSG(!__types_ok3(val,lo,hi,uval,ulo,uhi), \
"clamp("#val", "#lo", "#hi") signedness error"); \
--
2.45.2
