vmlinux.o(.text+0x40e): Section mismatch in reference from the variable start_here_multiplatform to the function

[Christophe Leroy]

Le 02/07/2019 à 08:23, Christian Zigotzky a écrit :
> Hi All,
> 
> I get the following error messages after compiling the RC7 of kernel 5.2:
> 
> WARNING: vmlinux.o(.text+0x40e): Section mismatch in reference from the 
> variable start_here_multiplatform to the function .init.text:.early_setup()
> The function start_here_multiplatform() references
> the function __init .early_setup().
> This is often because start_here_multiplatform lacks a __init
> annotation or the annotation of .early_setup is wrong.

Harmless warning.

Fix at 
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/arch/powerpc/kernel/head_64.S?h=next-20190701&id=9c4e4c90ec24652921e31e9551fcaedc26eec86d

Will be cherry-picked by stable once merged into 4.3 I guess.

Christophe

> 
> FATAL: modpost: Section mismatches detected.
> Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.
> scripts/Makefile.modpost:97: recipe for target 'vmlinux.o' failed
> make[1]: *** [vmlinux.o] Error 1
> Makefile:1052: recipe for target 'vmlinux' failed
> make: *** [vmlinux] Error 2
> 
> Please find attached the kernel config.
> 
> Any hints?
> 
> Thanks,
> Christian