powerpc: Don't change the section in _GLOBAL()

[Michael Ellerman]

On Thu, 2016-15-09 at 00:40:20 UTC, Michael Ellerman wrote:
> Currently the _GLOBAL() macro unilaterally sets the assembler section to
> ".text" at the start of the macro. This is rude as the caller may be
> using a different section.
> 
> So let the caller decide which section to emit the code into. On big
> endian we do need to switch to the ".opd" section to emit the OPD, but
> do that with pushsection/popsection, thereby leaving the original
> section intact.
> 
> The only place I could find where this requires changes to the code is
> in misc_32.S, where we need to switch back to ".text" after
> flush_icache_range() which is in ".kprobes.text".
> 
> I verified that the order of all entries in System.map is unchanged
> after this patch. The actual addresses shift around slightly so you
> can't just diff the System.map.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
> Reviewed-by: Nicholas Piggin <npiggin at gmail.com>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/bea2dccccfd47ef3f8612f1265

cheers