> -----Original Message----- > From: Malinen, Jouni [mailto:jouni@xxxxxxxxxxxxxxxx] > Sent: Wednesday, April 6, 2016 12:34 PM > To: Grumbach, Emmanuel <emmanuel.grumbach@xxxxxxxxx> > Cc: johannes@xxxxxxxxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx; > Otcheretianski, Andrei <andrei.otcheretianski@xxxxxxxxx> > Subject: Re: [PATCHv3 RESEND 01/11] cfg80211: add start / stop NAN > commands > > On Tue, Mar 29, 2016 at 12:34:59PM +0300, Emmanuel Grumbach wrote: > > Define several attributes that may be configured by user space when > > starting NAN functionality (master preference and dual band operation) > > > diff --git a/include/uapi/linux/nl80211.h > > b/include/uapi/linux/nl80211.h @@ -826,6 +826,16 @@ > > + * @NL80211_CMD_START_NAN: Start NAN operation, identified by its > > + * %NL80211_ATTR_WDEV interface. This interface must have been > previously > > + * created with %NL80211_CMD_NEW_INTERFACE. After it has been > started, the > > + * NAN interface will create or join a cluster. This command must have a > > + * valid %NL80211_ATTR_NAN_MASTER_PREF attribute and optional > > + * %NL80211_ATTR_NAN_DUAL attributes. > > > > diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c > > > +static int nl80211_start_nan(struct sk_buff *skb, struct genl_info > > +*info) > > > + if (!info->attrs[NL80211_ATTR_NAN_MASTER_PREF]) > > + return -EINVAL; > > Why NL80211_ATTR_NAN_MASTER_PREF is mandatory? The spec suggests > to assume master preference value of 128 if not provided. Please see quoted > text from NAN 1.0 specification: > "A NAN Device which out-of-the-box will have a Master Preference greater > than or equal to 128 with the intention of being a NAN Master Device" > I think that this quote just defines "NAN infrastructure device". I don't see where the spec specifies that 128 should be used as a default value. Andrei > -- > Jouni Malinen PGP id EFC895FA -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
