This helps initramfs builders and other tools to find the full dependencies of a module. Debian on powerpc (ppc32) still uses yaboot as default boot loader. Using a default installation (debian-installer) 64bit and metadata_csum feature are not setup in ext4. This is discussed in more details at: https://bugs.debian.org/825110#81 and implemented here: https://anonscm.debian.org/cgit/d-i/partman-ext3.git/patch/?id=f87dc92157262de1ad8dd3f2343436f08271b4dc This means that building the kernel as default debian package: make ARCH=powerpc XYZ_defconfig make -j8 ARCH=powerpc CROSS_COMPILE=powerpc-linux-gnu- bindeb-pkg Will lead to the following boot failure (initramfs prompt): /dev/sda3: clean, 127679/305216 files, 11128559/1220703 blocks done. [ 5.592819] EXT4-fs (sda3): Cannot load crc32c driver. mount: mounting /dev/sda3 on /root failed: No such file or directory Link: https://bugs.debian.org/819725 Link: https://salsa.debian.org/kernel-team/linux/blob/master/debian/patches/bugfix/all/fs-add-module_softdep-declarations-for-hard-coded-cr.patch Suggested-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> Cc: Milan Kupcevic <milan@xxxxxxxxxx> Signed-off-by: Mathieu Malaterre <malat@xxxxxxxxxx> --- fs/ext4/super.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 185f7e61f4cf..10bda040e78f 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -5886,5 +5886,6 @@ static void __exit ext4_exit_fs(void) MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others"); MODULE_DESCRIPTION("Fourth Extended Filesystem"); MODULE_LICENSE("GPL"); +MODULE_SOFTDEP("pre: crypto-crc32c"); module_init(ext4_init_fs) module_exit(ext4_exit_fs) -- 2.11.0
