Re: linux-next: build failure after merge of the final tree (wirelesstree related)

From: Michal Marek
Date: Thu Dec 22 2011 - 11:56:07 EST


Dne 22.12.2011 06:58, Stephen Rothwell napsal(a):
> Hi ,
>
> After merging the final tree, today's linux-next build (powerpc
> allyesconfig) failed like this:
>
> drivers/net/wireless/ath/ath6kl/cfg80211.c:27:1: error: expected ')' before 'KBUILD_MODNAME'
> drivers/net/wireless/ath/ath6kl/cfg80211.c:27:1: error: 'KBUILD_MODNAME' undeclared here (not in a function)
[...]
>
> I can't figure out what goes wrong here. On the compile command line,
> KBUILD_MODNAME is not defined, but KBUILD_BASE_NAME is.

scripts/Makefile.lib says
# Note: It's possible that one object gets potentially linked into more
# than one module. In that case KBUILD_MODNAME will be set to foo_bar,
# where foo and bar are the name of the modules.

but reality does not match this comment:
modname_flags = $(if $(filter 1,$(words $(modname))),\
-D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")

But I wonder why you need to link all the object files twice? Usually,
drivers have a foo_common.ko and foo_{usb,pci,whatever}.ko that provide
the pci/usb/whatever driver.

Michal
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