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Date: Tue, 8 Sep 2020 02:51:49 +0200 From: Andrew Lunn <andrew@...n.ch> To: David Miller <davem@...emloft.net> Cc: netdev <netdev@...r.kernel.org>, Chris Healy <cphealy@...il.com>, Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com> Subject: [PATCH net-next v2 1/7] net: dsa: Add helper to convert from devlink to ds Given a devlink instance, return the dsa switch it is associated to. Reviewed-by: Florian Fainelli <f.fainelli@...il.com> Signed-off-by: Andrew Lunn <andrew@...n.ch> --- include/net/dsa.h | 2 ++ net/dsa/dsa.c | 20 ++++++++++---------- 2 files changed, 12 insertions(+), 10 deletions(-) diff --git a/include/net/dsa.h b/include/net/dsa.h index 75c8fac82017..63ff6f717307 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -629,6 +629,8 @@ struct dsa_switch_ops { int (*port_max_mtu)(struct dsa_switch *ds, int port); }; +struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl); + #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ dsa_devlink_param_get, dsa_devlink_param_set, NULL) diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 1ce9ba8cf545..86351da4e202 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -327,14 +327,18 @@ int call_dsa_notifiers(unsigned long val, struct net_device *dev, } EXPORT_SYMBOL_GPL(call_dsa_notifiers); +struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) +{ + struct dsa_devlink_priv *dl_priv = devlink_priv(dl); + + return dl_priv->ds; +} +EXPORT_SYMBOL_GPL(dsa_devlink_to_ds); + int dsa_devlink_param_get(struct devlink *dl, u32 id, struct devlink_param_gset_ctx *ctx) { - struct dsa_devlink_priv *dl_priv; - struct dsa_switch *ds; - - dl_priv = devlink_priv(dl); - ds = dl_priv->ds; + struct dsa_switch *ds = dsa_devlink_to_ds(dl); if (!ds->ops->devlink_param_get) return -EOPNOTSUPP; @@ -346,11 +350,7 @@ EXPORT_SYMBOL_GPL(dsa_devlink_param_get); int dsa_devlink_param_set(struct devlink *dl, u32 id, struct devlink_param_gset_ctx *ctx) { - struct dsa_devlink_priv *dl_priv; - struct dsa_switch *ds; - - dl_priv = devlink_priv(dl); - ds = dl_priv->ds; + struct dsa_switch *ds = dsa_devlink_to_ds(dl); if (!ds->ops->devlink_param_set) return -EOPNOTSUPP; -- 2.28.0
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