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author | Márton Németh <nm127@freemail.hu> | 2010-01-10 17:15:36 +0100 |
---|---|---|
committer | Len Brown <len.brown@intel.com> | 2010-01-16 15:56:43 -0500 |
commit | c97adf9e7bebf17a86b95e2131bf9ba76c4857c7 (patch) | |
tree | 11667422c8b8a8d9f2980affd5f74611c4d12724 /drivers/acpi/power.c | |
parent | c14973f93027500301fc40333e16ae49e58923a7 (diff) | |
download | lwn-c97adf9e7bebf17a86b95e2131bf9ba76c4857c7.tar.gz lwn-c97adf9e7bebf17a86b95e2131bf9ba76c4857c7.zip |
acpi: make ACPI device id constant
The ids field of the struct acpi_driver is constant in <linux/acpi/acpi_bus.h>
so it is worth to make the initialization data also constant.
The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
...
const struct I2 *x;
...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
.x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>
Signed-off-by: Márton Németh <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/power.c')
-rw-r--r-- | drivers/acpi/power.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 22b297916519..0f30c3c1eea4 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -65,7 +65,7 @@ static int acpi_power_remove(struct acpi_device *device, int type); static int acpi_power_resume(struct acpi_device *device); static int acpi_power_open_fs(struct inode *inode, struct file *file); -static struct acpi_device_id power_device_ids[] = { +static const struct acpi_device_id power_device_ids[] = { {ACPI_POWER_HID, 0}, {"", 0}, }; |