mirror of https://gitee.com/openkylin/linux.git
d3761023e7
This structure is only used to copy into another structure, so declare
it as const.
This issue was detected using Coccinelle and the following semantic patch:
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct gpio_chip i@p = { ... };
@ok@
identifier r.i;
expression e;
position p;
@@
e = i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct gpio_chip e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct gpio_chip i = { ... };
In the following log you can see a significant difference in the code size
and data segment, hence in the dec segment. This log is the output
of the size command, before and after the code change:
before:
text data bss dec hex filename
17545 5376 0 22921 5989 drivers/pinctrl/nomadik/pinctrl-abx500.o
after:
bss dec hex filename
17273 5320 0 22593 5841 drivers/pinctrl/nomadik/pinctrl-abx500.o
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
|
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| pinctrl-ab8500.c | ||
| pinctrl-ab8505.c | ||
| pinctrl-ab8540.c | ||
| pinctrl-ab9540.c | ||
| pinctrl-abx500.c | ||
| pinctrl-abx500.h | ||
| pinctrl-nomadik-db8500.c | ||
| pinctrl-nomadik-db8540.c | ||
| pinctrl-nomadik-stn8815.c | ||
| pinctrl-nomadik.c | ||
| pinctrl-nomadik.h | ||