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 <arnd@xxxxxxxx>
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-arch" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
