diff mbox series

[52/55] lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB

Message ID 20220120021028.4n6F60o75%akpm@linux-foundation.org (mailing list archive)
State New
Headers show
Series [01/55] mm: percpu: generalize percpu related config | expand

Commit Message

Andrew Morton Jan. 20, 2022, 2:10 a.m. UTC 
From: Nathan Chancellor <nathan@kernel.org>
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@kernel.org
Fixes: b05fbcc36be1 ("btrfs: disable build on platforms having page size 256K")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Chris Mason <clm@fb.com>
Cc: David Sterba <dsterba@suse.com>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/Kconfig.debug |    1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

--- 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