powerpc/mm: Fix page table dump build on PPC32
On PPC32 (eg. mpc885_ads_defconfig), page table dump compilation fails as follows. This is because the memory layout is slightly different on PPC32. This patch adapts it. arch/powerpc/mm/dump_linuxpagetables.c: In function 'walk_pagetables': arch/powerpc/mm/dump_linuxpagetables.c:369:10: error: 'KERN_VIRT_START' undeclared (first use in this function) ... Fixes: 8eb07b18 ("powerpc/mm: Dump linux pagetables") Signed-off-by: NChristophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
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