From db01868bf2e919a10551066d54cf4bef5dd5a01e Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Sun, 11 Sep 2022 04:06:57 +0300 Subject: net: introduce iterators over synced hw addresses Some network drivers use __dev_mc_sync()/__dev_uc_sync() and therefore program the hardware only with addresses with a non-zero sync_cnt. Some of the above drivers also need to save/restore the address filtering lists when certain events happen, and they need to walk through the struct net_device :: uc and struct net_device :: mc lists. But these lists contain unsynced addresses too. To keep the appearance of an elementary form of data encapsulation, provide iterators through these lists that only look at entries with a non-zero sync_cnt, instead of filtering entries out from device drivers. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli Signed-off-by: Paolo Abeni --- include/linux/netdevice.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux/netdevice.h') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f0068c1ff1df..9f42fc871c3b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -253,11 +253,17 @@ struct netdev_hw_addr_list { #define netdev_uc_empty(dev) netdev_hw_addr_list_empty(&(dev)->uc) #define netdev_for_each_uc_addr(ha, dev) \ netdev_hw_addr_list_for_each(ha, &(dev)->uc) +#define netdev_for_each_synced_uc_addr(_ha, _dev) \ + netdev_for_each_uc_addr((_ha), (_dev)) \ + if ((_ha)->sync_cnt) #define netdev_mc_count(dev) netdev_hw_addr_list_count(&(dev)->mc) #define netdev_mc_empty(dev) netdev_hw_addr_list_empty(&(dev)->mc) #define netdev_for_each_mc_addr(ha, dev) \ netdev_hw_addr_list_for_each(ha, &(dev)->mc) +#define netdev_for_each_synced_mc_addr(_ha, _dev) \ + netdev_for_each_mc_addr((_ha), (_dev)) \ + if ((_ha)->sync_cnt) struct hh_cache { unsigned int hh_len; -- cgit v1.2.3-59-g8ed1b