Michael Ellerman c1bea0a840 powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug
Currently pmac32_defconfig with SMP=y doesn't build:

  arch/powerpc/platforms/powermac/smp.c:
  error: implicit declaration of function 'cleanup_cpu_mmu_context'

It would be nice for consistency if all platforms clear mm_cpumask and
flush TLBs on unplug, but the TLB invalidation bug described in commit
01b0f0eae0 ("powerpc/64s: Trim offlined CPUs from mm_cpumasks") only
applies to 64s and for now we only have the TLB flush code for that
platform.

So just add an empty version for 32-bit Book3S.

Fixes: 01b0f0eae0 ("powerpc/64s: Trim offlined CPUs from mm_cpumasks")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Change log based on comments from Nick]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2020-12-17 14:33:35 +11:00
2020-10-28 19:12:03 +01:00
2020-11-01 14:43:51 -08:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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