Re: [linux-next:master 8475/9410] ERROR: "__vmalloc_node_range" [lib/test_vmalloc.ko] undefined!

[Uladzislau Rezki <urezki@gmail.com>]

Hello, Andrew.

On Tue, Feb 19, 2019 at 06:04:38AM +0800, kbuild test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   cb916fc5eabf8832e05f73c246eb467259846ef0
> commit: bd7e49fa421950084fff786200b7fd6872d51643 [8475/9410] vmalloc: add test driver to analyse vmalloc allocator
> config: h8300-allyesconfig (attached as .config)
> compiler: h8300-linux-gcc (GCC) 8.2.0
> reproduce:
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout bd7e49fa421950084fff786200b7fd6872d51643
>         # save the attached .config to linux build tree
>         GCC_VERSION=8.2.0 make.cross ARCH=h8300 
> 
> All errors (new ones prefixed by >>):
> 
>    ERROR: "__divdi3" [lib/test_vmalloc.ko] undefined!
> >> ERROR: "__vmalloc_node_range" [lib/test_vmalloc.ko] undefined!
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
Could you please apply below patch to fix the error?

From f6ac7bddfc5969b0982ddf52ab248a1abb0b90a8 Mon Sep 17 00:00:00 2001
From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Date: Tue, 19 Feb 2019 09:47:51 +0100
Subject: [PATCH] lib/Kconfig.debug: make CONFIG_TEST_VMALLOC depends on
 CONFIG_MMU

The vmalloc test driver can not be used on no-MMU systems. Add that
dependency to prevent the driver to be compiled on such systems.

Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---
 lib/Kconfig.debug | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 960ba0cb58c4..618c3ee466e6 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1913,6 +1913,7 @@ config TEST_LKM
 config TEST_VMALLOC
        tristate "Test module for stress/performance analysis of vmalloc allocator"
        default n
+       depends on MMU
        depends on m
        help
          This builds the "test_vmalloc" module that should be used for
-- 
2.11.0

Sorry for inconvenience.

--
Vlad Rezki