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mm: remove kzfree() compatibility definition

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Commit 453431a549 ("mm, treewide: rename kzfree() to
kfree_sensitive()") renamed kzfree() to kfree_sensitive(),
but it left a compatibility definition of kzfree() to avoid
being too disruptive.

Since then a few more instances of kzfree() have slipped in.

Just get rid of them and remove the compatibility definition
once and for all.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Eric Biggers 2020-10-23 16:27:16 -07:00 committed by Linus Torvalds
parent 0f7f635b06
commit 23224e4500
6 changed files with 6 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/staging/rtl8192e/rtllib_crypt_tkip.c
View File

@ -100,7 +100,7 @@ static void rtllib_tkip_deinit(void *priv)
crypto_free_shash(_priv->tx_tfm_michael);
crypto_free_shash(_priv->rx_tfm_michael);
}
kzfree(priv);
kfree_sensitive(priv);
}

2
drivers/staging/rtl8192e/rtllib_crypt_wep.c
View File

@ -49,7 +49,7 @@ static void *prism2_wep_init(int keyidx)
static void prism2_wep_deinit(void *priv)
{
kzfree(priv);
kfree_sensitive(priv);
}
/* Perform WEP encryption on given skb that has at least 4 bytes of headroom

2
drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_tkip.c
View File

@ -107,7 +107,7 @@ static void ieee80211_tkip_deinit(void *priv)
crypto_free_shash(_priv->tx_tfm_michael);
crypto_free_shash(_priv->rx_tfm_michael);
}
kzfree(priv);
kfree_sensitive(priv);
}

2
drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_wep.c
View File

@ -54,7 +54,7 @@ static void *prism2_wep_init(int keyidx)
static void prism2_wep_deinit(void *priv)
{
kzfree(priv);
kfree_sensitive(priv);
}
/* Perform WEP encryption on given skb that has at least 4 bytes of headroom

2
include/linux/slab.h
View File

@ -187,8 +187,6 @@ void kfree_sensitive(const void *);
size_t __ksize(const void *);
size_t ksize(const void *);
#define kzfree(x) kfree_sensitive(x) /* For backward compatibility */
#ifdef CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR
void __check_heap_object(const void *ptr, unsigned long n, struct page *page,
bool to_user);

4
net/tipc/crypto.c
View File

@ -418,7 +418,7 @@ static void tipc_aead_free(struct rcu_head *rp)
kfree(head);
}
free_percpu(aead->tfm_entry);
kzfree(aead->key);
kfree_sensitive(aead->key);
kfree(aead);
}
@ -2452,7 +2452,7 @@ static void tipc_crypto_work_tx(struct work_struct *work)
tipc_crypto_key_init(tx, skey, PER_NODE_KEY, false);
if (likely(rc > 0))
rc = tipc_crypto_key_distr(tx, rc, NULL);
kzfree(skey);
kfree_sensitive(skey);
}
if (unlikely(rc))