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| author | Alexander Aring <alex.aring@gmail.com> | 2014-11-12 03:36:51 +0100 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-11-12 05:10:36 +0100 |
| commit | 6322d50d879c7ad150164cedc64015a7817f7b28 (patch) | |
| tree | 13e6bc3e863a1b8aa6c873b60b3209cdc34f0abd | |
| parent | 2789e6297f8fd4943b8d63599a75c3e1cf4f8517 (diff) | |
| download | lwn-6322d50d879c7ad150164cedc64015a7817f7b28.tar.gz lwn-6322d50d879c7ad150164cedc64015a7817f7b28.zip | |
mac802154: add wpan_phy priv id
This patch adds an unique id for an wpan_phy. This behaviour is mostly
grabbed from wireless stack. This is needed for upcomming patches which
identify the wpan netdev while NETDEV_CHANGENAME in netdev notify function.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| -rw-r--r-- | include/net/cfg802154.h | 8 | ||||
| -rw-r--r-- | net/mac802154/ieee802154_i.h | 3 | ||||
| -rw-r--r-- | net/mac802154/main.c | 2 | ||||
| -rw-r--r-- | net/mac802154/util.c | 3 |
4 files changed, 16 insertions, 0 deletions
diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h index e5570e011116..369515231302 100644 --- a/include/net/cfg802154.h +++ b/include/net/cfg802154.h @@ -42,6 +42,14 @@ struct cfg802154_ops { struct wpan_phy { struct mutex pib_lock; + /* If multiple wpan_phys are registered and you're handed e.g. + * a regular netdev with assigned ieee802154_ptr, you won't + * know whether it points to a wpan_phy your driver has registered + * or not. Assign this to something global to your driver to + * help determine whether you own this wpan_phy or not. + */ + const void *privid; + /* * This is a PIB according to 802.15.4-2011. * We do not provide timing-related variables, as they diff --git a/net/mac802154/ieee802154_i.h b/net/mac802154/ieee802154_i.h index abb19701d494..4be5e23c7e8b 100644 --- a/net/mac802154/ieee802154_i.h +++ b/net/mac802154/ieee802154_i.h @@ -96,6 +96,9 @@ struct ieee802154_sub_if_data { #define MAC802154_CHAN_NONE 0xff /* No channel is assigned */ +/* utility functions/constants */ +extern const void *const mac802154_wpan_phy_privid; /* for wpan_phy privid */ + static inline struct ieee802154_local * hw_to_local(struct ieee802154_hw *hw) { diff --git a/net/mac802154/main.c b/net/mac802154/main.c index 709dcc5f7f17..24e8ca6a669d 100644 --- a/net/mac802154/main.c +++ b/net/mac802154/main.c @@ -92,6 +92,8 @@ ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops) return NULL; } + phy->privid = mac802154_wpan_phy_privid; + local = wpan_phy_priv(phy); local->phy = phy; local->hw.phy = local->phy; diff --git a/net/mac802154/util.c b/net/mac802154/util.c index 117e4eff4ca8..9a04e4a8e50f 100644 --- a/net/mac802154/util.c +++ b/net/mac802154/util.c @@ -15,6 +15,9 @@ #include "ieee802154_i.h" +/* privid for wpan_phys to determine whether they belong to us or not */ +const void *const mac802154_wpan_phy_privid = &mac802154_wpan_phy_privid; + void ieee802154_wake_queue(struct ieee802154_hw *hw) { struct ieee802154_local *local = hw_to_local(hw); |