early_param memmap is only implemented on X86, MIPS and XTENSA. To avoid
wasting users’ time on trying this on platform like ARM, mark it clearly.
Signed-off-by: NBarry Song <song.bao.hua@hisilicon.com>
Reviewed-by: NMike Rapoport <rppt@linux.ibm.com>
Link: https://lore.kernel.org/r/20201128195121.2556-1-song.bao.hua@hisilicon.comSigned-off-by: NJonathan Corbet <corbet@lwn.net>