Linux-next-20200302: arm64 build failed

[Naresh Kamboju]

Linux-Next 20200302 arm64 build failed due to below errors,
Suspecting patch causing this build break.

87d900aef3e2  arm/arm64: add support for folded p4d page tables

Error log,
-------------
arch/arm64/mm/mmu.c: In function 'unmap_hotplug_pud_range':
include/linux/compiler.h:284:1: error: incompatible type for argument
1 of 'p4d_page_paddr'
 ({         \
 ^
arch/arm64/include/asm/memory.h:270:45: note: in definition of macro
'__phys_to_virt'
 #define __phys_to_virt(x) ((unsigned long)((x) - physvirt_offset))
                                             ^
arch/arm64/include/asm/pgtable.h:629:42: note: in expansion of macro '__va'
 #define pud_offset(dir, addr)  ((pud_t *)__va(pud_offset_phys((dir), (addr))))
                                          ^~~~
include/linux/compiler.h:293:22: note: in expansion of macro '__READ_ONCE'
 #define READ_ONCE(x) __READ_ONCE(x, 1)
                      ^~~~~~~~~~~
arch/arm64/include/asm/pgtable.h:628:52: note: in expansion of macro 'READ_ONCE'
 #define pud_offset_phys(dir, addr) (p4d_page_paddr(READ_ONCE(*(dir)))
+ pud_index(addr) * sizeof(pud_t))
                                                    ^~~~~~~~~
arch/arm64/include/asm/pgtable.h:629:47: note: in expansion of macro
'pud_offset_phys'
 #define pud_offset(dir, addr)  ((pud_t *)__va(pud_offset_phys((dir), (addr))))
                                               ^~~~~~~~~~~~~~~
arch/arm64/mm/mmu.c:827:10: note: in expansion of macro 'pud_offset'
   pudp = pud_offset(pgdp, addr);
          ^~~~~~~~~~

ref:
https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-next/DISTRO=lkft,MACHINE=juno,label=docker-lkft/716/consoleText

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