[PATCH] evm: Clean up some variables

From: Stefan Berger
Date: Fri May 13 2022 - 13:41:27 EST


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 <stefanb@xxxxxxxxxxxxx>
---
security/integrity/evm/evm.h | 3 ---
security/integrity/evm/evm_crypto.c | 2 +-
2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/security/integrity/evm/evm.h b/security/integrity/evm/evm.h
index 0d44f41d16f8..f8b8c5004fc7 100644
--- 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
index 0450d79afdc8..a733aff02006 100644
--- 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);
--
2.35.1