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ACPI: Constify ACPI device IDs in documentation 

ACPI device ID arrays normally don't need to be written to as they're
only ever read. The common usage -- embedding pointers to acpi_device_id
arrays in other data structures -- reference them as 'const', e.g. as in
struct acpi_driver / acpi_scan_handler / device_driver. The matchers are
taking const pointers, too. So it's only natural, to propose using const
arrays. Change the documentation accordingly.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Mathias Krause 2015-06-13 14:27:00 +02:00 committed by Rafael J. Wysocki
parent eb34866461
commit 1a147ed75c
1 changed files with 3 additions and 3 deletions
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6
Documentation/acpi/enumeration.txt
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@ -42,7 +42,7 @@ Adding ACPI support for an existing driver should be pretty
straightforward. Here is the simplest example: straightforward. Here is the simplest example:
#ifdef CONFIG_ACPI #ifdef CONFIG_ACPI
static struct acpi_device_id mydrv_acpi_match[] = { static const struct acpi_device_id mydrv_acpi_match[] = {
/* ACPI IDs here */ /* ACPI IDs here */
{ } { }
}; };
@ -166,7 +166,7 @@ the platform device drivers. Below is an example where we add ACPI support
to at25 SPI eeprom driver (this is meant for the above ACPI snippet): to at25 SPI eeprom driver (this is meant for the above ACPI snippet):
#ifdef CONFIG_ACPI #ifdef CONFIG_ACPI
static struct acpi_device_id at25_acpi_match[] = { static const struct acpi_device_id at25_acpi_match[] = {
{ "AT25", 0 }, { "AT25", 0 },
{ }, { },
}; };
@ -230,7 +230,7 @@ Below is an example of how to add ACPI support to the existing mpu3050
input driver: input driver:
#ifdef CONFIG_ACPI #ifdef CONFIG_ACPI
static struct acpi_device_id mpu3050_acpi_match[] = { static const struct acpi_device_id mpu3050_acpi_match[] = {
{ "MPU3050", 0 }, { "MPU3050", 0 },
{ }, { },
}; };