When we try to 'select' drivers whose dependencies are not met,
we get a kconfig warning and undefined behavior as further 'select'
statements in those drivers can not be honored:
warning: (TEST_KMOD) selects TUN which has unmet direct dependencies
(NETDEVICES && NET_CORE && INET)
warning: (TEST_KMOD) selects XFS_FS which has unmet direct dependencies (BLOCK
&& (64BIT || LBDAF))
ERROR: "iomap_zero_range" [fs/xfs/xfs.ko] undefined!
ERROR: "iomap_fiemap" [fs/xfs/xfs.ko] undefined!
ERROR: "iomap_page_mkwrite" [fs/xfs/xfs.ko] undefined!
To work around that, this adds the dependencies required by the
'tun', 'xfs' and 'btrfs' modules for CONFIG_TEST_KMOD, guaranteeing
that we can always enable those, and fixing the 'randconfig' issues.
Unfortunately, there is another problem that I have not found a
good solution for: If any of the three drivers are built-in rather
than loadable modules, then the module load test will later fail
at runtime.
Fixes: ec159fed8677 ("kmod: add test driver to stress test the module loader")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
lib/Kconfig.debug | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 411cddd713c0..0f7ba738ef7a 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1883,6 +1883,8 @@ config TEST_KMOD
tristate "kmod stress tester"
default n
depends on m
+ depends on BLOCK && (64BIT || LBDAF) # for XFS, BTRFS
+ depends on NETDEVICES && NET_CORE && INET # for TUN
select TEST_LKM
select XFS_FS
select TUN
--
2.9.0
