[PATCH v2 4/6] software node: Imply kobj_to_swnode() to be no-op

From: Andy Shevchenko
Date: Mon Mar 29 2021 - 11:12:50 EST


Since we don't use structure field layout randomization
the manual shuffling can affect some macros, in particular
kobj_to_swnode(), which becomes a no-op when kobj member
is the first one in the struct swnode.

Bloat-o-meter statistics for swnode.o:

add/remove: 0/0 grow/shrink: 2/10 up/down: 9/-100 (-91)
Total: Before=7217, After=7126, chg -1.26%

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
v2: added the object file name against which bloat-o-meter was run (Greg)
drivers/base/swnode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index db982859171e..e83028e11f50 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -12,10 +12,10 @@
#include <linux/slab.h>

struct swnode {
- int id;
struct kobject kobj;
struct fwnode_handle fwnode;
const struct software_node *node;
+ int id;

/* hierarchy */
struct ida child_ids;
--
2.30.2