Messages in this thread Patch in this message |  | | From | Colin King <> | Subject | [PATCH] gpio: 104-dio-48e: make array 'ports' static, shrinks object size | Date | Thu, 5 Apr 2018 13:00:12 +0100 |
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From: Colin Ian King <colin.king@canonical.com>
Don't populate the const read-only array 'ports' on the stack but instead make it static. Makes the object code smaller by over 100 buytes:
Before: text data bss dec hex filename 10959 4952 832 16743 4167 drivers/gpio/gpio-104-dio-48e.o
After: text data bss dec hex filename 10790 5008 832 16630 40f6 drivers/gpio/gpio-104-dio-48e.o
(gcc version 7.2.0 x86_64)
Signed-off-by: Colin Ian King <colin.king@canonical.com> --- drivers/gpio/gpio-104-dio-48e.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c index 31e22c93e844..9c4e07fcb74b 100644 --- a/drivers/gpio/gpio-104-dio-48e.c +++ b/drivers/gpio/gpio-104-dio-48e.c @@ -188,7 +188,7 @@ static int dio48e_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask, { struct dio48e_gpio *const dio48egpio = gpiochip_get_data(chip); size_t i; - const size_t ports[] = { 0, 1, 2, 4, 5, 6 }; + static const size_t ports[] = { 0, 1, 2, 4, 5, 6 }; const unsigned int gpio_reg_size = 8; unsigned int bits_offset; size_t word_index; -- 2.15.1
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