Messages in this thread | | | Subject | Re: netdevice.7 SIOCGIFFLAGS/SIOCSIFFLAGS | From | "Alejandro Colomar (man-pages)" <> | Date | Fri, 30 Apr 2021 21:32:52 +0200 |
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[PING mtk, netdev@] [CC += linux-kernel]
Hi Erik,
On 4/29/21 9:45 PM, Erik Flodin wrote: > On Wed, 14 Apr 2021 at 21:56, Alejandro Colomar (man-pages) > <alx.manpages@gmail.com> wrote: >> >> [CC += netdev] >> >> Hi Erik, >> >> On 4/14/21 8:52 PM, Erik Flodin wrote: >>> Hi, >>> >>> On Fri, 19 Mar 2021 at 20:53, Alejandro Colomar (man-pages) >>> <alx.manpages@gmail.com> wrote: >>>> On 3/17/21 3:12 PM, Erik Flodin wrote: >>>>> The documentation for SIOCGIFFLAGS/SIOCSIFFLAGS in netdevice.7 lists >>>>> IFF_LOWER_UP, IFF_DORMANT and IFF_ECHO, but those can't be set in >>>>> ifr_flags as it is only a short and the flags start at 1<<16. >>>>> >>>>> See also https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=746e6ad23cd6fec2edce056e014a0eabeffa838c >>>>> >>>> >>>> I don't know what's the history of that. >>> >>> Judging from commit message in the commit linked above it was added by >>> mistake. As noted the flags are accessible via netlink, just not via >>> SIOCGIFFLAGS. >>> >>> // Erik >>> >> >> I should have CCd netdev@ before. Thanks for the update. Let's see if >> anyone there can comment. >> >> Thanks, >> >> Alex >>
> Hi again, > > Have there been any updates on this one?
No, Noone from the kernel answered. And I'm sorry, but I'm not sure what is going on in the code, so I don't want to close this here by just removing those flags from the manual page, because I worry that the actual code may be wrong or something. So I prefer that when Michael has some time he can maybe review this and say something. Ideally, someone from the kernel would also respond, but they haven't. I've CCd the LKML; let's see if someone reads this and can help.
Thanks,
Alex
P.S.: Please, if we haven't responded in a month from now, ping us again. Thanks again.
> > // Erik > >> >> -- >> Alejandro Colomar >> Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/ >> http://www.alejandro-colomar.es/
-- Alejandro Colomar Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/ http://www.alejandro-colomar.es/
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