evm: Clean up some variables

Make hmac_tfm static since it's not used anywhere else besides the file it is in. Remove declaration of hash_tfm since it doesn't exist. Signed-off-by: Stefan Berger <[email protected]> Signed-off-by: Mimi Zohar <[email protected]>
josf · May 16, 2022 · 4c41186 · 4c41186
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commit 4c41186
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Showing 2 changed files with 1 addition and 4 deletions.
diff --git a/security/integrity/evm/evm.h b/security/integrity/evm/evm.h
@@ -38,9 +38,6 @@ extern int evm_initialized;
 
 extern int evm_hmac_attrs;
 
-extern struct crypto_shash *hmac_tfm;
-extern struct crypto_shash *hash_tfm;
-
 /* List of EVM protected security xattrs */
 extern struct list_head evm_config_xattrnames;
 

diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c
@@ -26,7 +26,7 @@
 static unsigned char evmkey[MAX_KEY_SIZE];
 static const int evmkey_len = MAX_KEY_SIZE;
 
-struct crypto_shash *hmac_tfm;
+static struct crypto_shash *hmac_tfm;
 static struct crypto_shash *evm_tfm[HASH_ALGO__LAST];
 
 static DEFINE_MUTEX(mutex);