From ac37c095ea166e777c75482a503453fd203bf788 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 28 Apr 2014 11:14:27 -0700 Subject: [PATCH] net: dsa: add ds_to_priv DSA drivers have a trick which consists in allocating "priv_size" more bytes to account for the DSA driver private context. Add a helper function to access that private context instead of open-coding it in drivers with (void *)(ds + 1). Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- include/net/dsa.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/net/dsa.h b/include/net/dsa.h index 7828ebf99ee13..6efce384451e5 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -181,6 +181,11 @@ struct dsa_switch_driver { void register_switch_driver(struct dsa_switch_driver *type); void unregister_switch_driver(struct dsa_switch_driver *type); +static inline void *ds_to_priv(struct dsa_switch *ds) +{ + return (void *)(ds + 1); +} + /* * The original DSA tag format and some other tag formats have no * ethertype, which means that we need to add a little hack to the -- 2.39.5