[OpenWrt-Devel] Possible Fix for broken hwsim on UML target

[Martin Tippmann]

Hi,

there is also a ticket about the problem here[1].

The problem is a missing include for barrier.h that is caused by a
duplicate header guard - I guess it might be this commit that introduced
the problem: [2]

The problem seems to be that both barrier.h header  files are included when
compiling mac80211 for UML, however the identical header guard prevents the
inclusion of the original <asm-generic/barrier.h> hat therefore barrier.h
is never included[3]. Missing definitions are the cause for the failing
build.

The fix is simple:

Changing the header guard for backports-generic/asm/barrier.h to something
different like __BACKPORT_ASM_BARRIER_H fixes the problem for me.


Unfortunately I'm not sure how to create a patch for this or where to send
it.

This fixes the build issue and mac80211 hwsim could be activated again for
the UML targets.



thanks&regards
Martin

1: https://dev.openwrt.org/ticket/19146
2:
https://git.kernel.org/cgit/linux/kernel/git/backports/backports.git/commit/?id=2d7d4083a7a418c1682d289920683f8b159d16c7
3:
https://gist.githubusercontent.com/anonymous/32f08ca5b5c12e46b8d7/raw/347509635de4f30034eb79dc9860fb90f61ab479/gistfile1.txt
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/openwrt-devel/attachments/20150612/03e18aa3/attachment.htm>
-------------- next part --------------
_______________________________________________
openwrt-devel mailing list
openwrt-devel at lists.openwrt.org
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel