Date: Sun, 24 Feb 2008 19:02:06 -0800 From: Sam Leffler <sam@errno.com> To: Perforce Change Reviews <perforce@freebsd.org> Subject: Re: PERFORCE change 136138 for review Message-ID: <47C22FAE.3080400@errno.com> In-Reply-To: <200802250254.m1P2stMd015043@repoman.freebsd.org> References: <200802250254.m1P2stMd015043@repoman.freebsd.org>
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Sam Leffler wrote: > http://perforce.freebsd.org/chv.cgi?CH=136138 > > Change 136138 by sam@sam_ebb on 2008/02/25 02:54:10 > > o require drivers to allocate the ifnet w/ IFT_IEEE80211 > instead of blindly clobbering if_type in ieee80211_ifattach; > this is effectively a noop but codifies the fact drivers > are 802.11-specific > o fix various radiotap bogosity in drivers; in particular > we no longer need to use bpfattach2 or maintain a private > sc_drvbpf as if_bpf isn't used by way of attaching as an > 802.11 device (and not calling ether_ifattach) > > FWIW switching over to use if_bpf is required to make tcpdump work on the parent device as otherwise BIOCSETIF fails because it checks for if_bpf being NULL and that doesn't happen any more as a side effect of calling ether_ifattach. netbsd is smarter about this; it walks the bpf_iflist regardless of if_bpf. Sam
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