3.8-rc3: yet another MIPS build failure

[Aaro Koskinen <aaro.koskinen@iki.fi>]

Hi,

Commit d3ce88431892b703b04769566338a89eda6b0477 (MIPS: Fix modpost
error in modules attepting to use virt_addr_valid()) broke the 64-bit
MIPS build:

  LD      init/built-in.o
kernel/built-in.o: In function `memory_bm_free':
snapshot.c:(.text+0x3c76c): undefined reference to `__virt_addr_valid'
snapshot.c:(.text+0x3c800): undefined reference to `__virt_addr_valid'
kernel/built-in.o: In function `snapshot_write_next':
(.text+0x3e094): undefined reference to `__virt_addr_valid'
kernel/built-in.o: In function `snapshot_write_next':
(.text+0x3e468): undefined reference to `__virt_addr_valid'
make[4]: *** [vmlinux] Error 1

A quick workaround is to compile ioremap.c always, but it adds ~2KB
unused code for 64-bit-only kernels...

A.