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>
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@ -117,6 +117,49 @@ ssize_t show_##_name(struct kobject *kobj, \
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static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
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static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
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#define BAT_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func) \
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ssize_t store_##_name(struct kobject *kobj, struct attribute *attr, \
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char *buff, size_t count) \
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{ \
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struct net_device *net_dev = kobj_to_netdev(kobj); \
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struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev); \
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ssize_t length; \
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\
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if (!hard_iface) \
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return 0; \
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\
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length = __store_uint_attr(buff, count, _min, _max, _post_func, \
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attr, &hard_iface->_name, net_dev); \
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\
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hardif_free_ref(hard_iface); \
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return length; \
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}
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#define BAT_ATTR_HIF_SHOW_UINT(_name) \
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ssize_t show_##_name(struct kobject *kobj, \
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struct attribute *attr, char *buff) \
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{ \
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struct net_device *net_dev = kobj_to_netdev(kobj); \
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struct hard_iface *hard_iface = hardif_get_by_netdev(net_dev); \
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ssize_t length; \
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\
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if (!hard_iface) \
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return 0; \
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\
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length = sprintf(buff, "%i\n", atomic_read(&hard_iface->_name));\
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\
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hardif_free_ref(hard_iface); \
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return length; \
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}
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/* Use this, if you are going to set [name] in hard_iface to an
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* unsigned integer value*/
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#define BAT_ATTR_HIF_UINT(_name, _mode, _min, _max, _post_func) \
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static BAT_ATTR_HIF_STORE_UINT(_name, _min, _max, _post_func) \
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static BAT_ATTR_HIF_SHOW_UINT(_name) \
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static BAT_ATTR(_name, _mode, show_##_name, store_##_name)
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static int store_bool_attr(char *buff, size_t count,
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static int store_bool_attr(char *buff, size_t count,
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struct net_device *net_dev,
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struct net_device *net_dev,
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const char *attr_name, atomic_t *attr)
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const char *attr_name, atomic_t *attr)
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