media: staging: atomisp: lm3554: constify acpi_device_id
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Thu, 6 Jul 2017 15:56:29 +0000 (11:56 -0400)
committerMauro Carvalho Chehab <mchehab@s-opensource.com>
Wed, 19 Jul 2017 20:22:39 +0000 (16:22 -0400)
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
   5347    1920      24    7291    1c7b drivers/staging/media/atomisp/i2c/lm3554.o

File size After adding 'const':
   text    data     bss     dec     hex filename
   5411    1856      24    7291    1c7b drivers/staging/media/atomisp/i2c/lm3554.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
drivers/staging/media/atomisp/i2c/lm3554.c

index 2b170c07aaba71c98e28a70753c9199eb85b8100..679176f7c542a79f2db31f7685667403847206a0 100644 (file)
@@ -974,7 +974,7 @@ static const struct dev_pm_ops lm3554_pm_ops = {
        .resume = lm3554_resume,
 };
 
-static struct acpi_device_id lm3554_acpi_match[] = {
+static const struct acpi_device_id lm3554_acpi_match[] = {
        { "INTCF1C" },
        {},
 };