Hi, I have already told Sasha that "MIPS: Reserve nosave data for hibernation" should not be backported to 4.1/3.18. But he has no response. Huacai ------------------ Original ------------------ From: "Guenter Roeck"<linux@xxxxxxxxxxxx>; Date: Mon, Aug 1, 2016 07:57 AM To: "Sasha Levin"<sasha.levin@xxxxxxxxxx>; Cc: "stable"<stable@xxxxxxxxxxxxxxx>; "linux-kernel@xxxxxxxxxxxxxxx"<linux-kernel@xxxxxxxxxxxxxxx>; "Huacai Chen"<chenhc@xxxxxxxxxx>; Subject: mips builds failing in v3.18.38 and v4.1.29 Sorry I didn't notice earlier - my 3.18/4.1 build scripts were broken. arch/mips/kernel/setup.c: In function 'arch_mem_init': arch/mips/kernel/setup.c:689:2: error: implicit declaration of function 'reserve_bootmem_region' Offending commit is 1dd0964204277108e ("MIPS: Reserve nosave data for hibernation"). It fixes a bug which does not exist in 3.18 / 4.1, in turn causing all mips builds in 3.18 and 4.1 to fail. Guenter��.n��������+%������w��{.n�����������ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f