From c8c868abc91ff23f6f5c4444c419de7c277d77e1 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 16 Sep 2020 21:11:36 -0700 Subject: fscrypt: make fscrypt_set_test_dummy_encryption() take a 'const char *' fscrypt_set_test_dummy_encryption() requires that the optional argument to the test_dummy_encryption mount option be specified as a substring_t. That doesn't work well with filesystems that use the new mount API, since the new way of parsing mount options doesn't use substring_t. Make it take the argument as a 'const char *' instead. Instead of moving the match_strdup() into the callers in ext4 and f2fs, make them just use arg->from directly. Since the pattern is "test_dummy_encryption=%s", the argument will be null-terminated. Acked-by: Jeff Layton Link: https://lore.kernel.org/r/20200917041136.178600-14-ebiggers@kernel.org Signed-off-by: Eric Biggers --- fs/ext4/super.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ext4/super.c') diff --git a/fs/ext4/super.c b/fs/ext4/super.c index aa6f64badf58..8b2736283481 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1892,7 +1892,7 @@ static int ext4_set_test_dummy_encryption(struct super_block *sb, "Can't set test_dummy_encryption on remount"); return -1; } - err = fscrypt_set_test_dummy_encryption(sb, arg, + err = fscrypt_set_test_dummy_encryption(sb, arg->from, &sbi->s_dummy_enc_policy); if (err) { if (err == -EEXIST) -- cgit v1.2.3