evm: Fix build warnings

Fix build warnings (function parameters description) for
evm_read_protected_xattrs(), evm_set_key() and evm_verifyxattr().

Fixes: 7626676320 ("evm: provide a function to set the EVM key from the kernel") # v4.5+
Fixes: 8314b6732a ("ima: Define new template fields xattrnames, xattrlengths and xattrvalues") # v5.14+
Fixes: 2960e6cb5f ("evm: additional parameter to pass integrity cache entry 'iint'") # v3.2+
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

security/integrity/evm/evm_crypto.c

@@ -40,7 +40,7 @@ static const char evm_hmac[] = "hmac(sha1)";
 /**
  * evm_set_key() - set EVM HMAC key from the kernel
  * @key: pointer to a buffer with the key data
- * @size: length of the key data
+ * @keylen: length of the key data
  *
  * This function allows setting the EVM HMAC key from the kernel
  * without using the "encrypted" key subsystem keys. It can be used

security/integrity/evm/evm_main.c

@@ -318,7 +318,6 @@ int evm_protected_xattr_if_enabled(const char *req_xattr_name)
 /**
  * evm_read_protected_xattrs - read EVM protected xattr names, lengths, values
  * @dentry: dentry of the read xattrs
- * @inode: inode of the read xattrs
  * @buffer: buffer xattr names, lengths or values are copied to
  * @buffer_size: size of buffer
  * @type: n: names, l: lengths, v: values
@@ -390,6 +389,7 @@ int evm_read_protected_xattrs(struct dentry *dentry, u8 *buffer,
  * @xattr_name: requested xattr
  * @xattr_value: requested xattr value
  * @xattr_value_len: requested xattr value length
+ * @iint: inode integrity metadata
  *
  * Calculate the HMAC for the given dentry and verify it against the stored
  * security.evm xattr. For performance, use the xattr value and length