[PATCH] fs: Add MODULE_SOFTDEP declarations for hard-coded crypto drivers

[Ben Hutchings <ben@xxxxxxxxxxxxxxx>]

This helps initramfs builders and other tools to find the full
dependencies of a module.

References: https://bugs.debian.org/819725
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -2456,3 +2456,4 @@ late_initcall(init_btrfs_fs);
 module_exit(exit_btrfs_fs)
 
 MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: crypto-crc32c");
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1373,5 +1373,13 @@ MODULE_DESCRIPTION
     ("VFS to access servers complying with the SNIA CIFS Specification "
      "e.g. Samba and Windows");
 MODULE_VERSION(CIFS_VERSION);
+
+#ifdef CONFIG_CIFS_SMB2
+#define CIFS_SMB2_EXTRA_SOFTDEPS " crypto-aes crypto-cmac crypto-sha256"
+#else
+#define CIFS_SMB2_EXTRA_SOFTDEPS ""
+#endif
+MODULE_SOFTDEP("pre: crypto-arc4 crypto-des crypto-ecb crypto-hmac crypto-md4 crypto-md5" CIFS_SMB2_EXTRA_SOFTDEPS);
+
 module_init(init_cifs)
 module_exit(exit_cifs)
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -566,3 +566,4 @@ static void __exit fscrypt_exit(void)
 module_exit(fscrypt_exit);
 
 MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: crypto-aes crypto-ecb");
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5441,5 +5441,13 @@ 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");
+
+#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#define EXT4_ENC_EXTRA_SOFTDEPS " crypto-aes crypto-ecb"
+#else
+#define EXT4_ENC_EXTRA_SOFTDEPS ""
+#endif
+MODULE_SOFTDEP("pre: crypto-crc32c" EXT4_ENC_EXTRA_SOFTDEPS);
+
 module_init(ext4_init_fs)
 module_exit(ext4_exit_fs)
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1742,3 +1742,4 @@ module_exit(exit_f2fs_fs)
 MODULE_AUTHOR("Samsung Electronics's Praesto Team");
 MODULE_DESCRIPTION("Flash Friendly File System");
 MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: crypto-crc32c");
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -2716,6 +2716,7 @@ static void __exit journal_exit(void)
 }
 
 MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: crypto-crc32c");
 module_init(journal_init);
 module_exit(journal_exit);
 
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -1314,5 +1314,8 @@ static void __exit exit_nfsd(void)
 
 MODULE_AUTHOR("Olaf Kirch <okir@xxxxxxxxxxxx>");
 MODULE_LICENSE("GPL");
+#ifdef CONFIG_NFSD_V4
+MODULE_SOFTDEP("pre: crypto-md5");
+#endif
 module_init(init_nfsd)
 module_exit(exit_nfsd)

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