ERROR: "sysctl_llc_station_ack_timeout" [net/llc/llc2.ko] undefined!

Hi Ben,

FYI, kernel build failed on

tree:   git://gitorious.org/linux-can/linux-can-next master
head:   029d8ada9150a1177f09148284b5cd27a30d4db7
commit: 025e36332573177ecd7c12730e18a4390f994f05 [118/170] llc2: Remove dead code for state machine
config: x86_64-allmodconfig

All related error/warning messages:

ERROR: "sysctl_llc_station_ack_timeout" [net/llc/llc2.ko] undefined!

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0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu, Yuanhan Liu Intel Corporation

From: Fengguang Wu <[email protected]>
Date: Fri, 21 Sep 2012 19:27:40 +0800

The very next commit, written by me, after Ben's fixes this build error.

It wasn't added by the CAN tree so bugging them is very inappropriate, the change came from the net-next tree.

OK..

Yup, I got an idea to fix it! :)

The root cause is the CAN tree get tested before the net-next tree that it bases on, and I'm CCing the CAN list because it "seems" to be testing the CAN tree.

The fix is to

a) Test the trees as soon as they are published, which will naturally result in upstream trees being tested first. Currently some of the build threads are overloaded, which leads to out-of-order testing and some missed tests.

b) Use the pair (committer, git tree) to find the related mailing list. The git tree alone is not reliable information, because one tree can pull from the others, in which case the committer is actually more reliable than the git url.

Thanks,
Fengguang