diff options
| author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2009-05-21 10:34:04 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-05-21 16:50:22 -0700 |
| commit | a7b11d738282337488ae158c975d76271ad43a98 (patch) | |
| tree | 82c27ba3224309e442fffbaa7e5d9ae6453a20a1 | |
| parent | 4ea7e38696c7e798c47ebbecadfd392f23f814f9 (diff) | |
genetlink: Introduce genl_register_family_with_ops()
This introduces genl_register_family_with_ops() that registers a genetlink
family along with operations from a table. This is used to kill copy'n'paste
occurrences in following patches.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/genetlink.h | 2 | ||||
| -rw-r--r-- | net/netlink/genetlink.c | 46 |
2 files changed, 48 insertions, 0 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h index 747c255d1df..1b0e3ee4ddd 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -88,6 +88,8 @@ struct genl_ops }; extern int genl_register_family(struct genl_family *family); +extern int genl_register_family_with_ops(struct genl_family *family, + struct genl_ops *ops, size_t n_ops); extern int genl_unregister_family(struct genl_family *family); extern int genl_register_ops(struct genl_family *, struct genl_ops *ops); extern int genl_unregister_ops(struct genl_family *, struct genl_ops *ops); diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index 1d3dd30099d..eed4c6a8afc 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -384,6 +384,52 @@ errout: } /** + * genl_register_family_with_ops - register a generic netlink family + * @family: generic netlink family + * @ops: operations to be registered + * @n_ops: number of elements to register + * + * Registers the specified family and operations from the specified table. + * Only one family may be registered with the same family name or identifier. + * + * The family id may equal GENL_ID_GENERATE causing an unique id to + * be automatically generated and assigned. + * + * Either a doit or dumpit callback must be specified for every registered + * operation or the function will fail. Only one operation structure per + * command identifier may be registered. + * + * See include/net/genetlink.h for more documenation on the operations + * structure. + * + * This is equivalent to calling genl_register_family() followed by + * genl_register_ops() for every operation entry in the table taking + * care to unregister the family on error path. + * + * Return 0 on success or a negative error code. + */ +int genl_register_family_with_ops(struct genl_family *family, + struct genl_ops *ops, size_t n_ops) +{ + int err, i; + + err = genl_register_family(family); + if (err) + return err; + + for (i = 0; i < n_ops; ++i, ++ops) { + err = genl_register_ops(family, ops); + if (err) + goto err_out; + } + return 0; +err_out: + genl_unregister_family(family); + return err; +} +EXPORT_SYMBOL(genl_register_family_with_ops); + +/** * genl_unregister_family - unregister generic netlink family * @family: generic netlink family * |