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device property: export code duplicating array of property entries

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When augmenting ACPI-enumerated devices with additional property data based
on DMI info, a module has often several potential property sets, with only
one being active on a given box. In order to save memory it should be
possible to mark everything and __initdata or __initconst, execute DMI
match early, and duplicate relevant properties. Then kernel will discard
the rest of them.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dmitry Torokhov
2017-02-02 17:41:27 -08:00
committed by Rafael J. Wysocki
parent 9426998ce6
commit 2d479e1fa2
2 changed files with 134 additions and 65 deletions
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5
include/linux/property.h
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@@ -241,6 +241,11 @@ struct property_entry {
.name = _name_, \
}
struct property_entry *
property_entries_dup(const struct property_entry *properties);
void property_entries_free(const struct property_entry *properties);
int device_add_properties(struct device *dev,
const struct property_entry *properties);
void device_remove_properties(struct device *dev);