Date: Mon, 11 Mar 2019 08:45:46 -0700 (PDT) From: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> To: Warner Losh <imp@bsdimp.com> Cc: "Rodney W. Grimes" <rgrimes@freebsd.org>, Andriy Voskoboinyk <avos@freebsd.org>, src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org> Subject: Re: svn commit: r344990 - in head: share/man/man9 sys/dev/ath sys/dev/bwi sys/dev/bwn sys/dev/ipw sys/dev/iwi sys/dev/iwm sys/dev/iwn sys/dev/malo sys/dev/mwl sys/dev/otus sys/dev/ral sys/dev/rtwn sys/... Message-ID: <201903111545.x2BFjk5s010151@ gndrsh.dnsmgr.net> In-Reply-To: <CANCZdfqj51uoTr8pbp7vB2inTrmObiYrSLUHJ=c9DaMRwsCikw@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> On Sun, Mar 10, 2019 at 8:12 PM Rodney W. Grimes <freebsd@gndrsh.dnsmgr.net> > wrote: > > > > Author: avos > > > Date: Mon Mar 11 01:27:01 2019 > > > New Revision: 344990 > > > URL: https://svnweb.freebsd.org/changeset/base/344990 > > > > > > Log: > > > Fix ieee80211_radiotap(9) usage in wireless drivers: > > > > > > - Alignment issues: > > > * Add missing __packed attributes + padding across all drivers; in > > > most places there was an assumption that padding will be always > > > minimally suitable; in few places - e.g., in urtw(4) / rtwn(4) - > > > padding was just missing. > > > * Add __aligned(8) attribute for all Rx radiotap headers since they > > can > > > contain 64-bit TSF timestamp; it cannot appear in Tx radiotap headers, > > so > > > just drop the attribute here. Refresh ieee80211_radiotap(9) man page > > > accordingly. > > > > > > - Since net80211 automatically updates channel frequency / flags in > > > ieee80211_radiotap_chan_change() drop duplicate setup for these fields > > > in drivers. > > > > > > Tested with Netgear WG111 v3 (urtw(4)), STA mode. > > > > > > MFC after: 2 weeks > > > > Isnt this going to seriously break module load compatibility > > due to struct size and alignment changes if you merge this to stable/12? > > > > It looks like all these changes are within the modules, not in the KBI... > It looks like this will make things work better on architectures that don't > like unaligned accesses. It seems like modules that aren't updated don't > work today on those architectures... Thank you for clarifying that; > Warner > > > Modified: > > > head/share/man/man9/ieee80211_radiotap.9 > > > head/sys/dev/ath/if_athioctl.h > > > head/sys/dev/bwi/if_bwi.c > > > head/sys/dev/bwi/if_bwivar.h > > > head/sys/dev/bwn/if_bwn.c > > > head/sys/dev/bwn/if_bwnvar.h > > ... > > -- > > Rod Grimes > > rgrimes@freebsd.org -- Rod Grimes rgrimes@freebsd.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201903111545.x2BFjk5s010151>