ARM kernels with MMU disabled fail to build because of CONFIG_ARCH_MMAP_RND_BITS:
kernel/built-in.o:(.data+0x754): undefined reference to `mmap_rnd_bits' kernel/built-in.o:(.data+0x76c): undefined reference to `mmap_rnd_bits_min' kernel/built-in.o:(.data+0x770): undefined reference to `mmap_rnd_bits_max' This changes the newly added line to only select this allow for MMU-enabled kernels. Signed-off-by: Arnd Bergmann <[email protected]> Fixes: 14570b3fd31a ("arm: mm: support ARCH_MMAP_RND_BITS") --- Found on yesterday's linux-next with ARM randconfig. The commit that introduced this is currently in Andrew's tree. If you don't already have a fix, please either apply this patch on top, or fold it into the original patch. diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b64f64d124c4..5a0957e3ea36 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -34,7 +34,7 @@ config ARM select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU - select HAVE_ARCH_MMAP_RND_BITS + select HAVE_ARCH_MMAP_RND_BITS if MMU select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT) select HAVE_ARCH_TRACEHOOK select HAVE_BPF_JIT -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
