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| author | Linus Luessing <linus.luessing@web.de> | 2012-03-11 06:17:52 +0800 |
|---|---|---|
| committer | Antonio Quartulli <ordex@autistici.org> | 2012-05-11 13:56:03 +0200 |
| commit | 9d853f624691776232a675768bcdb239d7b837ea (patch) | |
| tree | f329ab2db9f0faba5720d0dc905cfa3947a7b70d /net | |
| parent | f245c38ba74e1433294b5f41c9d6eb3e97b88e5b (diff) | |
| download | linux-9d853f624691776232a675768bcdb239d7b837ea.tar.gz linux-9d853f624691776232a675768bcdb239d7b837ea.tar.bz2 linux-9d853f624691776232a675768bcdb239d7b837ea.zip | |
batman-adv: Adding hard_iface specific sysfs wrapper macros for UINT
This allows us to easily add a sysfs parameter for an unsigned int
later, which is not for a batman mesh interface (e.g. bat0), but for a
common interface instead. It allows reading and writing an atomic_t in
hard_iface (instead of bat_priv compared to the mesh variant).
Developed by Linus during a 6 months trainee study period in Ascom
(Switzerland) AG.
Signed-off-by: Linus Luessing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/batman-adv/bat_sysfs.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/net/batman-adv/bat_sysfs.c b/net/batman-adv/bat_sysfs.c index 913299d03f4a..5bc7b66d32dc 100644 --- a/net/batman-adv/bat_sysfs.c +++ b/net/batman-adv/bat_sysfs.c @@ -117,6 +117,49 @@ ssize_t show_##_name(struct kobject *kobj, \ static BAT_ATTR(_name, _mode, show_##_name, store_##_name) +#define BAT_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func) \ +ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \ + char *buff, size_t count) \ +{ \ + struct net_device *net_dev = kobj_to_netdev(kobj); \ + struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev); \ + ssize_t length; \ + \ + if (!hard_iface) \ + return 0; \ + \ + length = __store_uint_attr(buff, count, _min, _max, _post_func, \ + attr, &hard_iface->_name, net_dev); \ + \ + hardif_free_ref(hard_iface); \ + return length; \ +} + +#define BAT_ATTR_HIF_SHOW_UINT(_name) \ +ssize_t show_##_name(struct kobject *kobj, \ + struct attribute *attr, char *buff) \ +{ \ + struct net_device *net_dev = kobj_to_netdev(kobj); \ + struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev); \ + ssize_t length; \ + \ + if (!hard_iface) \ + return 0; \ + \ + length = sprintf(buff, "%i\n", atomic_read(&hard_iface->_name));\ + \ + hardif_free_ref(hard_iface); \ + return length; \ +} + +/* Use this, if you are going to set [name] in hard_iface to an + * unsigned integer value*/ +#define BAT_ATTR_HIF_UINT(_name, _mode, _min, _max, _post_func) \ + static BAT_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func) \ + static BAT_ATTR_HIF_SHOW_UINT(_name) \ + static BAT_ATTR(_name, _mode, show_##_name, store_##_name) + + static int store_bool_attr(char *buff, size_t count, struct net_device *net_dev, const char *attr_name, atomic_t *attr) |