[RFC V3 PATCH 14/26] net/netpolicy: handle channel changes
From: <hidden>
Date: 2016-09-12 15:01:04
Also in:
lkml
Subsystem:
networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Kan Liang <redacted> User can uses ethtool to set the channel number. This patch handles the channel changes by rebuilding the object list. Signed-off-by: Kan Liang <redacted> --- include/linux/netpolicy.h | 8 ++++++++ net/core/ethtool.c | 8 +++++++- net/core/netpolicy.c | 1 + 3 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/include/linux/netpolicy.h b/include/linux/netpolicy.h
index f60331d..d6ba9f6 100644
--- a/include/linux/netpolicy.h
+++ b/include/linux/netpolicy.h@@ -80,4 +80,12 @@ struct netpolicy_info { struct list_head obj_list[NETPOLICY_RXTX][NET_POLICY_MAX]; }; +#ifdef CONFIG_NETPOLICY +extern void update_netpolicy_sys_map(void); +#else +static inline void update_netpolicy_sys_map(void) +{ +} +#endif + #endif /*__LINUX_NETPOLICY_H*/
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 9774898..e1f8bd0 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c@@ -1703,6 +1703,7 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev, { struct ethtool_channels channels, max; u32 max_rx_in_use = 0; + int ret; if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels) return -EOPNOTSUPP;
@@ -1726,7 +1727,12 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev, (channels.combined_count + channels.rx_count) <= max_rx_in_use) return -EINVAL; - return dev->ethtool_ops->set_channels(dev, &channels); + ret = dev->ethtool_ops->set_channels(dev, &channels); +#ifdef CONFIG_NETPOLICY + if (!ret) + update_netpolicy_sys_map(); +#endif + return ret; } static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr)
diff --git a/net/core/netpolicy.c b/net/core/netpolicy.c
index 3bf0a44..a739ac7 100644
--- a/net/core/netpolicy.c
+++ b/net/core/netpolicy.c@@ -893,6 +893,7 @@ unlock: } } } +EXPORT_SYMBOL(update_netpolicy_sys_map); static int netpolicy_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
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2.5.5