[U-Boot] [PATCH v2 03/14] linux_compat: move vzalloc() to header file as an inline function

Masahiro Yamada
2015-07-13T04:17:06Z

The vzalloc(size) is equivalent to kzalloc(size, 0). Move it to
include/linux/compat.h as an inline function in order to avoid the
function call overhead.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

include/linux/compat.h | 6 ++++--
lib/linux_compat.c | 5 -----
2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/include/linux/compat.h b/include/linux/compat.h
index da1420f..a3d136b 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -40,6 +40,10 @@ void *kmalloc(size_t size, int flags);
void *kzalloc(size_t size, int flags);
#define vmalloc(size) kmalloc(size, 0)
#define __vmalloc(size, flags, pgsz) kmalloc(size, flags)
+static inline void *vzalloc(unsigned long size)
+{
+ return kzalloc(size, 0);
+}
#define kfree(ptr) free(ptr)
#define vfree(ptr) free(ptr)

@@ -189,8 +193,6 @@ struct work_struct {};
unsigned long copy_from_user(void *dest, const void *src,
unsigned long count);

-void *vzalloc(unsigned long size);
-
typedef unused_t spinlock_t;
typedef int wait_queue_head_t;

diff --git a/lib/linux_compat.c b/lib/linux_compat.c
index a3d4675..8c7a7b5 100644
--- a/lib/linux_compat.c
+++ b/lib/linux_compat.c
@@ -26,11 +26,6 @@ void *kzalloc(size_t size, int flags)
return ptr;
}

-void *vzalloc(unsigned long size)
-{
- return kzalloc(size, 0);
-}
-
struct kmem_cache *get_mem(int element_sz)
{
struct kmem_cache *ret;
--
1.9.1