From: Nathan Chancellor <nathan@xxxxxxxxxx>
Subject: lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB
Commit b05fbcc36be1 ("btrfs: disable build on platforms having page size
256K") disabled btrfs for configurations that used a 256kB page size.
However, it did not fully solve the problem because CONFIG_TEST_KMOD
selects CONFIG_BTRFS, which does not account for the dependency. This
results in a Kconfig warning and the failed BUILD_BUG_ON error returning.
WARNING: unmet direct dependencies detected for BTRFS_FS
Depends on [n]: BLOCK [=y] && !PPC_256K_PAGES && !PAGE_SIZE_256KB [=y]
Selected by [m]:
- TEST_KMOD [=m] && RUNTIME_TESTING_MENU [=y] && m && MODULES [=y] && NETDEVICES [=y] && NET_CORE [=y] && INET [=y] && BLOCK [=y]
To resolve this, add CONFIG_PAGE_SIZE_LESS_THAN_256KB as a dependency of
CONFIG_TEST_KMOD so there is no more invalid configuration or build
errors.
Link: https://lkml.kernel.org/r/20211129230141.228085-4-nathan@xxxxxxxxxx
Fixes: b05fbcc36be1 ("btrfs: disable build on platforms having page size 256K")
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Cc: Chris Mason <clm@xxxxxx>
Cc: David Sterba <dsterba@xxxxxxxx>
Cc: Josef Bacik <josef@xxxxxxxxxxxxxx>
Cc: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.debug | 1 +
1 file changed, 1 insertion(+)
--- a/lib/Kconfig.debug~lib-kconfigdebug-make-test_kmod-depend-on-page_size_less_than_256kb
+++ a/lib/Kconfig.debug
@@ -2505,6 +2505,7 @@ config TEST_KMOD
depends on m
depends on NETDEVICES && NET_CORE && INET # for TUN
depends on BLOCK
+ depends on PAGE_SIZE_LESS_THAN_256KB # for BTRFS
select TEST_LKM
select XFS_FS
select TUN
_
