2017-07-06 16:40:59

by Arvind Yadav

[permalink] [raw]
Subject: [PATCH] staging: atomisp: mt9m114: constify acpi_device_id.

acpi_device_id are not supposed to change at runtime. All functions
working with acpi_device_id provided by <acpi/acpi_bus.h> work with
const acpi_device_id. So mark the non-const structs as const.

File size before:
text data bss dec hex filename
15148 2640 8 17796 4584
drivers/staging/media/atomisp/i2c/mt9m114.o

File size After adding 'const':
text data bss dec hex filename
15244 2512 8 17764 4564
drivers/staging/media/atomisp/i2c/mt9m114.o

Signed-off-by: Arvind Yadav <[email protected]>
---
drivers/staging/media/atomisp/i2c/mt9m114.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/atomisp/i2c/mt9m114.c b/drivers/staging/media/atomisp/i2c/mt9m114.c
index ced175c..68980ab 100644
--- a/drivers/staging/media/atomisp/i2c/mt9m114.c
+++ b/drivers/staging/media/atomisp/i2c/mt9m114.c
@@ -1928,7 +1928,7 @@ static int mt9m114_probe(struct i2c_client *client,

MODULE_DEVICE_TABLE(i2c, mt9m114_id);

-static struct acpi_device_id mt9m114_acpi_match[] = {
+static const struct acpi_device_id mt9m114_acpi_match[] = {
{ "INT33F0" },
{ "CRMT1040" },
{},
--
2.7.4