| Message ID | 1357944049-29620-11-git-send-email-yinghai@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Friday, January 11, 2013 02:40:37 PM Yinghai Lu wrote: > From: Tang Chen <tangchen@cn.fujitsu.com> > > We need to find out if one handle is for root bridge, and install notify > handler for it to handle pci root bus hot add. > At that time, root bridge acpi device is not created yet. > > So acpi_match_device_ids() will not work. > > This patch add a function to check if new acpi handle's HID matches a list > of IDs. The new api use acpi_device_info instead acpi_device. > > -v2: updated changelog, also check length for string info... > change checking sequence by moving string comaring close to for loop. > - Yinghai > -v3: change to _GPL according to Rafael Please fold this into [11/22]. Otherwise one has to look at these two patches at the same time to understand how the code is supposed to work, which is less than useful. Thanks, Rafael > Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> > Signed-off-by: Yinghai Lu <yinghai@kernel.org> > Cc: Len Brown <lenb@kernel.org> > Cc: linux-acpi@vger.kernel.org > --- > drivers/acpi/scan.c | 33 +++++++++++++++++++++++++++++++++ > include/acpi/acpi_bus.h | 2 ++ > 2 files changed, 35 insertions(+) > > diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c > index db7664e..8883539 100644 > --- a/drivers/acpi/scan.c > +++ b/drivers/acpi/scan.c > @@ -470,6 +470,39 @@ int acpi_match_device_ids(struct acpi_device *device, > } > EXPORT_SYMBOL(acpi_match_device_ids); > > +int acpi_match_object_info_ids(struct acpi_device_info *info, > + const struct acpi_device_id *ids) > +{ > + const struct acpi_device_id *id; > + char *str; > + u32 len; > + int i; > + > + len = info->hardware_id.length; > + if (len) { > + str = info->hardware_id.string; > + if (str) > + for (id = ids; id->id[0]; id++) > + if (!strcmp((char *)id->id, str)) > + return 0; > + } > + > + for (i = 0; i < info->compatible_id_list.count; i++) { > + len = info->compatible_id_list.ids[i].length; > + if (!len) > + continue; > + str = info->compatible_id_list.ids[i].string; > + if (!str) > + continue; > + for (id = ids; id->id[0]; id++) > + if (!strcmp((char *)id->id, str)) > + return 0; > + } > + > + return -ENOENT; > +} > +EXPORT_SYMBOL_GPL(acpi_match_object_info_ids); > + > static void acpi_free_ids(struct acpi_device *device) > { > struct acpi_hardware_id *id, *tmp; > diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h > index a9e1421..2246ba9 100644 > --- a/include/acpi/acpi_bus.h > +++ b/include/acpi/acpi_bus.h > @@ -355,6 +355,8 @@ int acpi_bus_trim(struct acpi_device *start, int rmdevice); > acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); > int acpi_match_device_ids(struct acpi_device *device, > const struct acpi_device_id *ids); > +int acpi_match_object_info_ids(struct acpi_device_info *info, > + const struct acpi_device_id *ids); > int acpi_create_dir(struct acpi_device *); > void acpi_remove_dir(struct acpi_device *); > >
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index db7664e..8883539 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -470,6 +470,39 @@ int acpi_match_device_ids(struct acpi_device *device, } EXPORT_SYMBOL(acpi_match_device_ids); +int acpi_match_object_info_ids(struct acpi_device_info *info, + const struct acpi_device_id *ids) +{ + const struct acpi_device_id *id; + char *str; + u32 len; + int i; + + len = info->hardware_id.length; + if (len) { + str = info->hardware_id.string; + if (str) + for (id = ids; id->id[0]; id++) + if (!strcmp((char *)id->id, str)) + return 0; + } + + for (i = 0; i < info->compatible_id_list.count; i++) { + len = info->compatible_id_list.ids[i].length; + if (!len) + continue; + str = info->compatible_id_list.ids[i].string; + if (!str) + continue; + for (id = ids; id->id[0]; id++) + if (!strcmp((char *)id->id, str)) + return 0; + } + + return -ENOENT; +} +EXPORT_SYMBOL_GPL(acpi_match_object_info_ids); + static void acpi_free_ids(struct acpi_device *device) { struct acpi_hardware_id *id, *tmp; diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index a9e1421..2246ba9 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -355,6 +355,8 @@ int acpi_bus_trim(struct acpi_device *start, int rmdevice); acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd); int acpi_match_device_ids(struct acpi_device *device, const struct acpi_device_id *ids); +int acpi_match_object_info_ids(struct acpi_device_info *info, + const struct acpi_device_id *ids); int acpi_create_dir(struct acpi_device *); void acpi_remove_dir(struct acpi_device *);