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ACPI / scan: constify first argument of struct acpi_scan_handler::match

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One wouldn't expect a "match" function modify the string it searches
for, and indeed the only instance of the struct
acpi_scan_handler::match callback, acpi_pnp_match, can easily be
changed. While there, update its helper matching_id().

This is also preparation for constifying struct acpi_hardware_id::id.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rasmus Villemoes 2015-09-09 23:59:41 +02:00 committed by Rafael J. Wysocki
parent 6ff33f3902
commit 636c19d389
2 changed files with 3 additions and 3 deletions
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4
drivers/acpi/acpi_pnp.c
View File

@ -316,7 +316,7 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
{""},
};
static bool matching_id(char *idstr, char *list_id)
static bool matching_id(const char *idstr, const char *list_id)
{
int i;
@ -333,7 +333,7 @@ static bool matching_id(char *idstr, char *list_id)
return true;
}
static bool acpi_pnp_match(char *idstr, const struct acpi_device_id **matchid)
static bool acpi_pnp_match(const char *idstr, const struct acpi_device_id **matchid)
{
const struct acpi_device_id *devid;

2
include/acpi/acpi_bus.h
View File

@ -129,7 +129,7 @@ static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
struct acpi_scan_handler {
const struct acpi_device_id *ids;
struct list_head list_node;
bool (*match)(char *idstr, const struct acpi_device_id **matchid);
bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
void (*detach)(struct acpi_device *dev);
void (*bind)(struct device *phys_dev);