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authorVinay Kumar Yadav <vinay.yadav@chelsio.com>2019-12-19 16:21:48 +0530
committerHerbert Xu <herbert@gondor.apana.org.au>2019-12-27 18:18:04 +0800
commit93e23eb2ed6c11b4f483c8111ac155ec2b1f3042 (patch)
tree0747f360fe190e3f4322fdce3ef2939f58ffc247 /drivers/crypto/chelsio/chtls/chtls_cm.h
parent596d0a289554a6946173ec898928e6390bb0943a (diff)
crypto: chtls - Fixed memory leak
Freed work request skbs when connection terminates. enqueue_wr()/ dequeue_wr() is shared between softirq and application contexts, should be protected by socket lock. Moved dequeue_wr() to appropriate file. Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/chelsio/chtls/chtls_cm.h')
-rw-r--r--drivers/crypto/chelsio/chtls/chtls_cm.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/crypto/chelsio/chtls/chtls_cm.h b/drivers/crypto/chelsio/chtls/chtls_cm.h
index 129d7ac649a9..3fac0c74a41f 100644
--- a/drivers/crypto/chelsio/chtls/chtls_cm.h
+++ b/drivers/crypto/chelsio/chtls/chtls_cm.h
@@ -185,6 +185,12 @@ static inline void chtls_kfree_skb(struct sock *sk, struct sk_buff *skb)
kfree_skb(skb);
}
+static inline void chtls_reset_wr_list(struct chtls_sock *csk)
+{
+ csk->wr_skb_head = NULL;
+ csk->wr_skb_tail = NULL;
+}
+
static inline void enqueue_wr(struct chtls_sock *csk, struct sk_buff *skb)
{
WR_SKB_CB(skb)->next_wr = NULL;
@@ -197,4 +203,19 @@ static inline void enqueue_wr(struct chtls_sock *csk, struct sk_buff *skb)
WR_SKB_CB(csk->wr_skb_tail)->next_wr = skb;
csk->wr_skb_tail = skb;
}
+
+static inline struct sk_buff *dequeue_wr(struct sock *sk)
+{
+ struct chtls_sock *csk = rcu_dereference_sk_user_data(sk);
+ struct sk_buff *skb = NULL;
+
+ skb = csk->wr_skb_head;
+
+ if (likely(skb)) {
+ /* Don't bother clearing the tail */
+ csk->wr_skb_head = WR_SKB_CB(skb)->next_wr;
+ WR_SKB_CB(skb)->next_wr = NULL;
+ }
+ return skb;
+}
#endif