From mboxrd@z Thu Jan 1 00:00:00 1970 From: Antonio Quartulli Subject: [PATCH 11/15] batman-adv: Adding hard_iface specific sysfs wrapper macros for UINT Date: Fri, 11 May 2012 14:21:28 +0200 Message-ID: <1336738892-7401-12-git-send-email-ordex@autistici.org> References: <1336738892-7401-1-git-send-email-ordex@autistici.org> Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org, Linus Luessing , Marek Lindner , Antonio Quartulli To: davem@davemloft.net Return-path: Received: from investici.nine.ch ([217.150.252.179]:58890 "EHLO confino.investici.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758752Ab2EKMZh (ORCPT ); Fri, 11 May 2012 08:25:37 -0400 In-Reply-To: <1336738892-7401-1-git-send-email-ordex@autistici.org> Sender: netdev-owner@vger.kernel.org List-ID: From: Linus Luessing 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 Signed-off-by: Marek Lindner Signed-off-by: Antonio Quartulli --- net/batman-adv/bat_sysfs.c | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/net/batman-adv/bat_sysfs.c b/net/batman-adv/bat_sysfs.c index 913299d..5bc7b66 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) -- 1.7.9.4