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fscrypt: remove unnecessary extern keywords
Remove the unnecessary 'extern' keywords from function declarations. This makes it so that we don't have a mix of both styles, so it won't be ambiguous what to use in new fscrypt patches. This also makes the code shorter and matches the 'checkpatch --strict' expectation. Link: https://lore.kernel.org/r/20200511191358.53096-4-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
Eric Biggers
parent
fe015a78e5
commit
607009020a
@ -231,15 +231,14 @@ typedef enum {
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/* crypto.c */
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extern struct kmem_cache *fscrypt_info_cachep;
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extern int fscrypt_initialize(unsigned int cop_flags);
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extern int fscrypt_crypt_block(const struct inode *inode,
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fscrypt_direction_t rw, u64 lblk_num,
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struct page *src_page, struct page *dest_page,
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unsigned int len, unsigned int offs,
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gfp_t gfp_flags);
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extern struct page *fscrypt_alloc_bounce_page(gfp_t gfp_flags);
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int fscrypt_initialize(unsigned int cop_flags);
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int fscrypt_crypt_block(const struct inode *inode, fscrypt_direction_t rw,
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u64 lblk_num, struct page *src_page,
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struct page *dest_page, unsigned int len,
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unsigned int offs, gfp_t gfp_flags);
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struct page *fscrypt_alloc_bounce_page(gfp_t gfp_flags);
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extern void __printf(3, 4) __cold
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void __printf(3, 4) __cold
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fscrypt_msg(const struct inode *inode, const char *level, const char *fmt, ...);
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#define fscrypt_warn(inode, fmt, ...) \
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@ -264,12 +263,10 @@ void fscrypt_generate_iv(union fscrypt_iv *iv, u64 lblk_num,
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const struct fscrypt_info *ci);
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/* fname.c */
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extern int fscrypt_fname_encrypt(const struct inode *inode,
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const struct qstr *iname,
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u8 *out, unsigned int olen);
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extern bool fscrypt_fname_encrypted_size(const struct inode *inode,
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u32 orig_len, u32 max_len,
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u32 *encrypted_len_ret);
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int fscrypt_fname_encrypt(const struct inode *inode, const struct qstr *iname,
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u8 *out, unsigned int olen);
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bool fscrypt_fname_encrypted_size(const struct inode *inode, u32 orig_len,
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u32 max_len, u32 *encrypted_len_ret);
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extern const struct dentry_operations fscrypt_d_ops;
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/* hkdf.c */
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@ -278,8 +275,8 @@ struct fscrypt_hkdf {
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struct crypto_shash *hmac_tfm;
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};
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extern int fscrypt_init_hkdf(struct fscrypt_hkdf *hkdf, const u8 *master_key,
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unsigned int master_key_size);
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int fscrypt_init_hkdf(struct fscrypt_hkdf *hkdf, const u8 *master_key,
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unsigned int master_key_size);
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/*
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* The list of contexts in which fscrypt uses HKDF. These values are used as
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@ -294,11 +291,11 @@ extern int fscrypt_init_hkdf(struct fscrypt_hkdf *hkdf, const u8 *master_key,
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#define HKDF_CONTEXT_IV_INO_LBLK_64_KEY 4
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#define HKDF_CONTEXT_DIRHASH_KEY 5
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extern int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context,
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const u8 *info, unsigned int infolen,
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u8 *okm, unsigned int okmlen);
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int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context,
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const u8 *info, unsigned int infolen,
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u8 *okm, unsigned int okmlen);
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extern void fscrypt_destroy_hkdf(struct fscrypt_hkdf *hkdf);
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void fscrypt_destroy_hkdf(struct fscrypt_hkdf *hkdf);
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/* keyring.c */
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@ -436,14 +433,14 @@ static inline int master_key_spec_len(const struct fscrypt_key_specifier *spec)
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return 0;
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}
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extern struct key *
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struct key *
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fscrypt_find_master_key(struct super_block *sb,
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const struct fscrypt_key_specifier *mk_spec);
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extern int fscrypt_verify_key_added(struct super_block *sb,
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const u8 identifier[FSCRYPT_KEY_IDENTIFIER_SIZE]);
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int fscrypt_verify_key_added(struct super_block *sb,
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const u8 identifier[FSCRYPT_KEY_IDENTIFIER_SIZE]);
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extern int __init fscrypt_init_keyring(void);
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int __init fscrypt_init_keyring(void);
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/* keysetup.c */
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@ -457,33 +454,32 @@ struct fscrypt_mode {
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extern struct fscrypt_mode fscrypt_modes[];
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extern struct crypto_skcipher *
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fscrypt_allocate_skcipher(struct fscrypt_mode *mode, const u8 *raw_key,
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const struct inode *inode);
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struct crypto_skcipher *fscrypt_allocate_skcipher(struct fscrypt_mode *mode,
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const u8 *raw_key,
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const struct inode *inode);
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extern int fscrypt_set_per_file_enc_key(struct fscrypt_info *ci,
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const u8 *raw_key);
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int fscrypt_set_per_file_enc_key(struct fscrypt_info *ci, const u8 *raw_key);
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extern int fscrypt_derive_dirhash_key(struct fscrypt_info *ci,
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const struct fscrypt_master_key *mk);
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int fscrypt_derive_dirhash_key(struct fscrypt_info *ci,
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const struct fscrypt_master_key *mk);
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/* keysetup_v1.c */
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extern void fscrypt_put_direct_key(struct fscrypt_direct_key *dk);
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void fscrypt_put_direct_key(struct fscrypt_direct_key *dk);
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extern int fscrypt_setup_v1_file_key(struct fscrypt_info *ci,
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const u8 *raw_master_key);
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int fscrypt_setup_v1_file_key(struct fscrypt_info *ci,
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const u8 *raw_master_key);
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int fscrypt_setup_v1_file_key_via_subscribed_keyrings(struct fscrypt_info *ci);
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extern int fscrypt_setup_v1_file_key_via_subscribed_keyrings(
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struct fscrypt_info *ci);
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/* policy.c */
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extern bool fscrypt_policies_equal(const union fscrypt_policy *policy1,
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const union fscrypt_policy *policy2);
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extern bool fscrypt_supported_policy(const union fscrypt_policy *policy_u,
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const struct inode *inode);
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extern int fscrypt_policy_from_context(union fscrypt_policy *policy_u,
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const union fscrypt_context *ctx_u,
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int ctx_size);
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bool fscrypt_policies_equal(const union fscrypt_policy *policy1,
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const union fscrypt_policy *policy2);
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bool fscrypt_supported_policy(const union fscrypt_policy *policy_u,
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const struct inode *inode);
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int fscrypt_policy_from_context(union fscrypt_policy *policy_u,
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const union fscrypt_context *ctx_u,
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int ctx_size);
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#endif /* _FSCRYPT_PRIVATE_H */
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@ -108,22 +108,21 @@ static inline void fscrypt_handle_d_move(struct dentry *dentry)
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}
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/* crypto.c */
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extern void fscrypt_enqueue_decrypt_work(struct work_struct *);
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void fscrypt_enqueue_decrypt_work(struct work_struct *);
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extern struct page *fscrypt_encrypt_pagecache_blocks(struct page *page,
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unsigned int len,
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unsigned int offs,
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gfp_t gfp_flags);
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extern int fscrypt_encrypt_block_inplace(const struct inode *inode,
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struct page *page, unsigned int len,
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unsigned int offs, u64 lblk_num,
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gfp_t gfp_flags);
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struct page *fscrypt_encrypt_pagecache_blocks(struct page *page,
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unsigned int len,
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unsigned int offs,
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gfp_t gfp_flags);
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int fscrypt_encrypt_block_inplace(const struct inode *inode, struct page *page,
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unsigned int len, unsigned int offs,
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u64 lblk_num, gfp_t gfp_flags);
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extern int fscrypt_decrypt_pagecache_blocks(struct page *page, unsigned int len,
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unsigned int offs);
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extern int fscrypt_decrypt_block_inplace(const struct inode *inode,
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struct page *page, unsigned int len,
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unsigned int offs, u64 lblk_num);
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int fscrypt_decrypt_pagecache_blocks(struct page *page, unsigned int len,
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unsigned int offs);
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int fscrypt_decrypt_block_inplace(const struct inode *inode, struct page *page,
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unsigned int len, unsigned int offs,
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u64 lblk_num);
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static inline bool fscrypt_is_bounce_page(struct page *page)
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{
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@ -135,81 +134,74 @@ static inline struct page *fscrypt_pagecache_page(struct page *bounce_page)
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return (struct page *)page_private(bounce_page);
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}
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extern void fscrypt_free_bounce_page(struct page *bounce_page);
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void fscrypt_free_bounce_page(struct page *bounce_page);
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/* policy.c */
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extern int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg);
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extern int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg);
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extern int fscrypt_ioctl_get_policy_ex(struct file *filp, void __user *arg);
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extern int fscrypt_ioctl_get_nonce(struct file *filp, void __user *arg);
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extern int fscrypt_has_permitted_context(struct inode *parent,
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struct inode *child);
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extern int fscrypt_inherit_context(struct inode *parent, struct inode *child,
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void *fs_data, bool preload);
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int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg);
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int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg);
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int fscrypt_ioctl_get_policy_ex(struct file *filp, void __user *arg);
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int fscrypt_ioctl_get_nonce(struct file *filp, void __user *arg);
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int fscrypt_has_permitted_context(struct inode *parent, struct inode *child);
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int fscrypt_inherit_context(struct inode *parent, struct inode *child,
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void *fs_data, bool preload);
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/* keyring.c */
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extern void fscrypt_sb_free(struct super_block *sb);
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extern int fscrypt_ioctl_add_key(struct file *filp, void __user *arg);
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extern int fscrypt_ioctl_remove_key(struct file *filp, void __user *arg);
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extern int fscrypt_ioctl_remove_key_all_users(struct file *filp,
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void __user *arg);
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extern int fscrypt_ioctl_get_key_status(struct file *filp, void __user *arg);
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void fscrypt_sb_free(struct super_block *sb);
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int fscrypt_ioctl_add_key(struct file *filp, void __user *arg);
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int fscrypt_ioctl_remove_key(struct file *filp, void __user *arg);
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int fscrypt_ioctl_remove_key_all_users(struct file *filp, void __user *arg);
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int fscrypt_ioctl_get_key_status(struct file *filp, void __user *arg);
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/* keysetup.c */
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extern int fscrypt_get_encryption_info(struct inode *inode);
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extern void fscrypt_put_encryption_info(struct inode *inode);
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extern void fscrypt_free_inode(struct inode *inode);
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extern int fscrypt_drop_inode(struct inode *inode);
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int fscrypt_get_encryption_info(struct inode *inode);
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void fscrypt_put_encryption_info(struct inode *inode);
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void fscrypt_free_inode(struct inode *inode);
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int fscrypt_drop_inode(struct inode *inode);
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/* fname.c */
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extern int fscrypt_setup_filename(struct inode *inode, const struct qstr *iname,
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int lookup, struct fscrypt_name *fname);
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int fscrypt_setup_filename(struct inode *inode, const struct qstr *iname,
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int lookup, struct fscrypt_name *fname);
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static inline void fscrypt_free_filename(struct fscrypt_name *fname)
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{
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kfree(fname->crypto_buf.name);
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}
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extern int fscrypt_fname_alloc_buffer(const struct inode *inode,
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u32 max_encrypted_len,
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struct fscrypt_str *crypto_str);
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extern void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str);
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extern int fscrypt_fname_disk_to_usr(const struct inode *inode,
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u32 hash, u32 minor_hash,
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const struct fscrypt_str *iname,
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struct fscrypt_str *oname);
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extern bool fscrypt_match_name(const struct fscrypt_name *fname,
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const u8 *de_name, u32 de_name_len);
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extern u64 fscrypt_fname_siphash(const struct inode *dir,
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const struct qstr *name);
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int fscrypt_fname_alloc_buffer(const struct inode *inode, u32 max_encrypted_len,
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struct fscrypt_str *crypto_str);
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void fscrypt_fname_free_buffer(struct fscrypt_str *crypto_str);
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int fscrypt_fname_disk_to_usr(const struct inode *inode,
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u32 hash, u32 minor_hash,
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const struct fscrypt_str *iname,
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struct fscrypt_str *oname);
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bool fscrypt_match_name(const struct fscrypt_name *fname,
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const u8 *de_name, u32 de_name_len);
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u64 fscrypt_fname_siphash(const struct inode *dir, const struct qstr *name);
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/* bio.c */
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extern void fscrypt_decrypt_bio(struct bio *bio);
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extern int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
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sector_t pblk, unsigned int len);
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void fscrypt_decrypt_bio(struct bio *bio);
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int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
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sector_t pblk, unsigned int len);
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/* hooks.c */
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extern int fscrypt_file_open(struct inode *inode, struct file *filp);
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extern int __fscrypt_prepare_link(struct inode *inode, struct inode *dir,
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struct dentry *dentry);
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extern int __fscrypt_prepare_rename(struct inode *old_dir,
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struct dentry *old_dentry,
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struct inode *new_dir,
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struct dentry *new_dentry,
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unsigned int flags);
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extern int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry,
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struct fscrypt_name *fname);
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extern int fscrypt_prepare_setflags(struct inode *inode,
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unsigned int oldflags, unsigned int flags);
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extern int __fscrypt_prepare_symlink(struct inode *dir, unsigned int len,
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unsigned int max_len,
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struct fscrypt_str *disk_link);
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extern int __fscrypt_encrypt_symlink(struct inode *inode, const char *target,
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unsigned int len,
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struct fscrypt_str *disk_link);
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extern const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
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unsigned int max_size,
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struct delayed_call *done);
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int fscrypt_file_open(struct inode *inode, struct file *filp);
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int __fscrypt_prepare_link(struct inode *inode, struct inode *dir,
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struct dentry *dentry);
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int __fscrypt_prepare_rename(struct inode *old_dir, struct dentry *old_dentry,
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struct inode *new_dir, struct dentry *new_dentry,
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unsigned int flags);
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int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry,
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struct fscrypt_name *fname);
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int fscrypt_prepare_setflags(struct inode *inode,
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unsigned int oldflags, unsigned int flags);
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int __fscrypt_prepare_symlink(struct inode *dir, unsigned int len,
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unsigned int max_len,
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struct fscrypt_str *disk_link);
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int __fscrypt_encrypt_symlink(struct inode *inode, const char *target,
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unsigned int len, struct fscrypt_str *disk_link);
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const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
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unsigned int max_size,
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struct delayed_call *done);
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static inline void fscrypt_set_ops(struct super_block *sb,
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const struct fscrypt_operations *s_cop)
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{
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