[PATCH] pinctrl: single: make two arrays static const, reduces object code size
From: Colin King
Date: Tue Sep 19 2017 - 10:42:26 EST
From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Don't populate the read-only arrays prop2 and prop4 on the stack, instead
make them static const. Makes the object code smaller by over 230 bytes:
Before:
text data bss dec hex filename
28235 5820 192 34247 85c7 drivers/pinctrl/pinctrl-single.o
After:
text data bss dec hex filename
27839 5980 192 34011 84db drivers/pinctrl/pinctrl-single.o
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/pinctrl/pinctrl-single.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index b8b3d932cd73..e6cd8de793e2 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -873,13 +873,13 @@ static int pcs_parse_pinconf(struct pcs_device *pcs, struct device_node *np,
int i = 0, nconfs = 0;
unsigned long *settings = NULL, *s = NULL;
struct pcs_conf_vals *conf = NULL;
- struct pcs_conf_type prop2[] = {
+ static const struct pcs_conf_type prop2[] = {
{ "pinctrl-single,drive-strength", PIN_CONFIG_DRIVE_STRENGTH, },
{ "pinctrl-single,slew-rate", PIN_CONFIG_SLEW_RATE, },
{ "pinctrl-single,input-schmitt", PIN_CONFIG_INPUT_SCHMITT, },
{ "pinctrl-single,low-power-mode", PIN_CONFIG_LOW_POWER_MODE, },
};
- struct pcs_conf_type prop4[] = {
+ static const struct pcs_conf_type prop4[] = {
{ "pinctrl-single,bias-pullup", PIN_CONFIG_BIAS_PULL_UP, },
{ "pinctrl-single,bias-pulldown", PIN_CONFIG_BIAS_PULL_DOWN, },
{ "pinctrl-single,input-schmitt-enable",
--
2.14.1