Section mismatches in arch/powerpc/kernel/head_64.S

[Denis Kirjanov]

On 11/13/15, Laura Abbott <labbott at redhat.com> wrote:
> Hi,
>
> There seem to be section mismatches coming from head_64.S
>
> WARNING: vmlinux.o(.text+0x8994): Section mismatch in reference from the
> variable __boot_from_prom to the function .init.text:prom_init()
> The function __boot_from_prom() references
> the function __init prom_init().
> This is often because __boot_from_prom lacks a __init
> annotation or the annotation of prom_init is wrong.
>
> WARNING: vmlinux.o(.text+0x8c30): 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.
>
> WARNING: vmlinux.o(.text+0x8c54): Section mismatch in reference from the
> variable start_here_common to the function .init.text:setup_system()
> The function start_here_common() references
> the function __init setup_system().
> This is often because start_here_common lacks a __init
> annotation or the annotation of setup_system is wrong.
>
> WARNING: vmlinux.o(.text+0x8c68): Section mismatch in reference from the
> variable start_here_common to the function .init.text:start_kernel()
> The function start_here_common() references
> the function __init start_kernel().
> This is often because start_here_common lacks a __init
> annotation or the annotation of start_kernel is wrong.
>
> 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
>
> These were noticed when I accidentally turned off
> CONFIG_SECTION_MISMATCH_WARN_ONLY
> (see https://bugzilla.redhat.com/show_bug.cgi?id=1281446) which now
> makes them a compilation failure. Config attached. Currently just working
> around this by keeping that option on.

Looks like something new because I haven't seen these warnings. I'll
check what can be done here...

Thanks!
>
> Thanks,
> Laura
>