fscrypt: remove fscrypt_set_test_dummy_encryption()

Now that all its callers have been converted to
fscrypt_parse_test_dummy_encryption() and fscrypt_add_test_dummy_key()
instead, fscrypt_set_test_dummy_encryption() can be removed.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20220513231605.175121-6-ebiggers@kernel.org

fs/crypto/policy.c

@@ -833,19 +833,6 @@ bool fscrypt_dummy_policies_equal(const struct fscrypt_dummy_policy *p1,
 }
 EXPORT_SYMBOL_GPL(fscrypt_dummy_policies_equal);
 
-/* Deprecated, do not use */
-int fscrypt_set_test_dummy_encryption(struct super_block *sb, const char *arg,
-				      struct fscrypt_dummy_policy *dummy_policy)
-{
-	struct fs_parameter param = {
-		.type = fs_value_is_string,
-		.string = arg ? (char *)arg : "",
-	};
-	return fscrypt_parse_test_dummy_encryption(&param, dummy_policy) ?:
-		fscrypt_add_test_dummy_key(sb, dummy_policy);
-}
-EXPORT_SYMBOL_GPL(fscrypt_set_test_dummy_encryption);
-
 /**
  * fscrypt_show_test_dummy_encryption() - show '-o test_dummy_encryption'
  * @seq: the seq_file to print the option to

include/linux/fscrypt.h

@@ -295,8 +295,6 @@ int fscrypt_parse_test_dummy_encryption(const struct fs_parameter *param,
 				    struct fscrypt_dummy_policy *dummy_policy);
 bool fscrypt_dummy_policies_equal(const struct fscrypt_dummy_policy *p1,
 				  const struct fscrypt_dummy_policy *p2);
-int fscrypt_set_test_dummy_encryption(struct super_block *sb, const char *arg,
-				struct fscrypt_dummy_policy *dummy_policy);
 void fscrypt_show_test_dummy_encryption(struct seq_file *seq, char sep,
 					struct super_block *sb);
 static inline bool