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powerpc/kexec_file: fix implicit decl error 

kexec (PPC64) code calls memory_hotplug_max(). Add the header
declaration for it from <asm/mmzone.h>. Using <linux/mmzone.h> does not
work since the #include for <asm/mmzone.h> depends on CONFIG_NUMA=y,
which is not always set.

Fixes this build error/warning:

  arch/powerpc/kexec/file_load_64.c: In function 'kexec_extra_fdt_size_ppc64':
  arch/powerpc/kexec/file_load_64.c:993:33: error: implicit declaration of function 'memory_hotplug_max'
  993 |                 usm_entries = ((memory_hotplug_max() / drmem_lmb_size()) +
      |                                 ^~~~~~~~~~~~~~~~~~

Fixes: fc546faa55 ("powerpc/kexec_file: Count hot-pluggable memory in FDT estimate")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230204172206.7662-1-rdunlap@infradead.org
This commit is contained in:
Randy Dunlap 2023-02-04 09:22:06 -08:00 committed by Michael Ellerman
parent e33416fca8
commit 97e45d469e
1 changed files with 1 additions and 0 deletions
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arch/powerpc/kexec/file_load_64.c
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@ -26,6 +26,7 @@
#include <asm/firmware.h>
#include <asm/kexec_ranges.h>
#include <asm/crashdump-ppc64.h>
#include <asm/mmzone.h>
#include <asm/prom.h>
struct umem_info {