[PATCH 02/13] READ_ONCE: Undefine internal __READ_ONCE_SIZE macro after use

From: Will Deacon
Date: Fri Nov 08 2019 - 12:01:40 EST


The '__READ_ONCE_SIZE()' macro is only used as part of building
'READ_ONCE()', so undefine it once we don't need it anymore.

Signed-off-by: Will Deacon <will@xxxxxxxxxx>
---
include/asm-generic/rwonce.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/asm-generic/rwonce.h b/include/asm-generic/rwonce.h
index d189455ae038..abf326634ecd 100644
--- a/include/asm-generic/rwonce.h
+++ b/include/asm-generic/rwonce.h
@@ -59,6 +59,8 @@ void __read_once_size_nocheck(const volatile void *p, void *res, int size)
__READ_ONCE_SIZE;
}

+#undef __READ_ONCE_SIZE
+
static __always_inline void __write_once_size(volatile void *p, void *res, int size)
{
switch (size) {
--
2.24.0.rc1.363.gb1bccd3e3d-goog