This is a note to let you know that I've just added the patch titled lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB to the 5.16-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: lib-kconfig.debug-make-test_kmod-depend-on-page_size_less_than_256kb.patch and it can be found in the queue-5.16 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From bbd2e05fad3e692ff2495895975bd0fce02bdbae Mon Sep 17 00:00:00 2001 From: Nathan Chancellor <nathan@xxxxxxxxxx> Date: Wed, 19 Jan 2022 18:10:28 -0800 Subject: lib/Kconfig.debug: make TEST_KMOD depend on PAGE_SIZE_LESS_THAN_256KB From: Nathan Chancellor <nathan@xxxxxxxxxx> commit bbd2e05fad3e692ff2495895975bd0fce02bdbae upstream. 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> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- lib/Kconfig.debug | 1 + 1 file changed, 1 insertion(+) --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2487,6 +2487,7 @@ 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 Patches currently in stable-queue which might be from nathan@xxxxxxxxxx are queue-5.16/x86-boot-compressed-move-clang_flags-to-beginning-of.patch queue-5.16/lib-kconfig.debug-make-test_kmod-depend-on-page_size_less_than_256kb.patch queue-5.16/lkdtm-fix-content-of-section-containing-lkdtm_rodata_do_nothing.patch queue-5.16/mips-loongson64-use-three-arguments-for-slti.patch queue-5.16/iwlwifi-mvm-use-div_s64-instead-of-do_div-in-iwl_mvm.patch queue-5.16/media-atomisp-handle-errors-at-sh_css_create_isp_par.patch queue-5.16/mips-octeon-fix-build-errors-using-clang.patch queue-5.16/cxl-core-remove-cxld_const_init-in-cxl_decoder_alloc.patch