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authorTyler Hicks <tyhicks@canonical.com>2013-05-23 21:08:40 +0200
committerTyler Hicks <tyhicks@canonical.com>2013-06-08 02:28:29 +0200
commit0df5ed65c14e2c36ed842fcff58118662009f1a1 (patch)
tree6e053b8e634ca9c74f7151e3a0969851c471abce /fs
parenteCryptfs: Collapse crypt_page_offset() into crypt_extent() (diff)
downloadlinux-0df5ed65c14e2c36ed842fcff58118662009f1a1.tar.xz
linux-0df5ed65c14e2c36ed842fcff58118662009f1a1.zip
eCryptfs: Make extent and scatterlist crypt function parameters similar
The 'dest' abbreviation is only used in crypt_scatterlist(), while all other functions in crypto.c use 'dst' so dest_sg should be renamed to dst_sg. The crypt_stat parameter is typically the first parameter in internal eCryptfs functions so crypt_stat and dst_page should be swapped in crypt_extent(). Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/ecryptfs/crypto.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 9947388ccd8d..46a6f6a4a705 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -330,7 +330,7 @@ static void extent_crypt_complete(struct crypto_async_request *req, int rc)
/**
* crypt_scatterlist
* @crypt_stat: Pointer to the crypt_stat struct to initialize.
- * @dest_sg: Destination of the data after performing the crypto operation
+ * @dst_sg: Destination of the data after performing the crypto operation
* @src_sg: Data to be encrypted or decrypted
* @size: Length of data
* @iv: IV to use
@@ -339,7 +339,7 @@ static void extent_crypt_complete(struct crypto_async_request *req, int rc)
* Returns the number of bytes encrypted or decrypted; negative value on error
*/
static int crypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,
- struct scatterlist *dest_sg,
+ struct scatterlist *dst_sg,
struct scatterlist *src_sg, int size,
unsigned char *iv, int op)
{
@@ -384,7 +384,7 @@ static int crypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,
crypt_stat->flags |= ECRYPTFS_KEY_SET;
}
mutex_unlock(&crypt_stat->cs_tfm_mutex);
- ablkcipher_request_set_crypt(req, src_sg, dest_sg, size, iv);
+ ablkcipher_request_set_crypt(req, src_sg, dst_sg, size, iv);
rc = op == ENCRYPT ? crypto_ablkcipher_encrypt(req) :
crypto_ablkcipher_decrypt(req);
if (rc == -EINPROGRESS || rc == -EBUSY) {
@@ -413,9 +413,9 @@ static loff_t lower_offset_for_page(struct ecryptfs_crypt_stat *crypt_stat,
/**
* crypt_extent
- * @dst_page: The page to write the result into
* @crypt_stat: crypt_stat containing cryptographic context for the
* encryption operation
+ * @dst_page: The page to write the result into
* @src_page: The page to read from
* @extent_offset: Page extent offset for use in generating IV
* @op: ENCRYPT or DECRYPT to indicate the desired operation
@@ -424,8 +424,8 @@ static loff_t lower_offset_for_page(struct ecryptfs_crypt_stat *crypt_stat,
*
* Return zero on success; non-zero otherwise
*/
-static int crypt_extent(struct page *dst_page,
- struct ecryptfs_crypt_stat *crypt_stat,
+static int crypt_extent(struct ecryptfs_crypt_stat *crypt_stat,
+ struct page *dst_page,
struct page *src_page,
unsigned long extent_offset, int op)
{
@@ -508,7 +508,7 @@ int ecryptfs_encrypt_page(struct page *page)
for (extent_offset = 0;
extent_offset < (PAGE_CACHE_SIZE / crypt_stat->extent_size);
extent_offset++) {
- rc = crypt_extent(enc_extent_page, crypt_stat, page,
+ rc = crypt_extent(crypt_stat, enc_extent_page, page,
extent_offset, ENCRYPT);
if (rc) {
printk(KERN_ERR "%s: Error encrypting extent; "
@@ -581,7 +581,7 @@ int ecryptfs_decrypt_page(struct page *page)
for (extent_offset = 0;
extent_offset < (PAGE_CACHE_SIZE / crypt_stat->extent_size);
extent_offset++) {
- rc = crypt_extent(page, crypt_stat, page,
+ rc = crypt_extent(crypt_stat, page, page,
extent_offset, DECRYPT);
if (rc) {
printk(KERN_ERR "%s: Error encrypting extent; "