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    SubjectRe: build issue #538 for v2.6.27-rc1 :undefined reference to `pnp_get_resource'
    On Wed, Jul 30, 2008 at 03:03:44AM -0700, Andrew Morton wrote:
    > On Tue, 29 Jul 2008 18:11:46 +0200 Toralf F__rster <toralf.foerster@gmx.de> wrote:
    >
    > > Hello,
    > >
    > > the build (.config attached) failed, make ends with :
    > > ...
    > > AS arch/x86/lib/thunk_32.o
    > > CC arch/x86/lib/usercopy_32.o
    > > AR arch/x86/lib/lib.a
    > > LD vmlinux.o
    > > MODPOST vmlinux.o
    > > WARNING: modpost: Found 13 section mismatch(es).
    > > To see full details build your kernel with:
    > > 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
    > > GEN .version
    > > CHK include/linux/compile.h
    > > UPD include/linux/compile.h
    > > CC init/version.o
    > > LD init/built-in.o
    > > LD .tmp_vmlinux1
    > > drivers/built-in.o: In function `pnp_port_start':
    > > /home/tfoerste/devel/linux-2.6/include/linux/pnp.h:51: undefined reference to `pnp_get_resource'
    > > make: *** [.tmp_vmlinux1] Error 1
    > >
    >
    > y:/usr/src/25> grep PNP .config
    > y:/usr/src/25> grep pnp_port_start $(find . -name '*.o')
    > Binary file ./drivers/built-in.o matches
    > Binary file ./drivers/telephony/built-in.o matches
    > Binary file ./drivers/telephony/ixj.o matches
    > Binary file ./vmlinux.o matches
    >
    > I assume that drivers/telephony/ixj.c needs to depend on PNP.
    >...

    No, it does not need this dependency.

    CONFIG_OPTIMIZE_INLINING broke it, and Bjorn has already done a fix
    (it's silly to get an out-of-line pnp_port_start() function only due to
    it having two callers in one source file, but that is what gcc 4.2 does
    as "optimized inlining"...).

    cu
    Adrian

    --

    "Is there not promise of rain?" Ling Tan asked suddenly out
    of the darkness. There had been need of rain for many days.
    "Only a promise," Lao Er said.
    Pearl S. Buck - Dragon Seed



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