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path: root/drivers/s390/net/qeth.h
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Diffstat (limited to 'drivers/s390/net/qeth.h')
-rw-r--r--drivers/s390/net/qeth.h35
1 files changed, 14 insertions, 21 deletions
diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h
index e8bd8c5ced1..c04ee915dc1 100644
--- a/drivers/s390/net/qeth.h
+++ b/drivers/s390/net/qeth.h
@@ -859,23 +859,18 @@ qeth_get_ipa_adp_type(enum qeth_link_types link_type)
}
}
-static inline int
-qeth_realloc_headroom(struct qeth_card *card, struct sk_buff **skb, int size)
+static inline struct sk_buff *
+qeth_realloc_headroom(struct qeth_card *card, struct sk_buff *skb, int size)
{
- struct sk_buff *new_skb = NULL;
-
- if (skb_headroom(*skb) < size){
- new_skb = skb_realloc_headroom(*skb, size);
- if (!new_skb) {
- PRINT_ERR("qeth_prepare_skb: could "
- "not realloc headroom for qeth_hdr "
- "on interface %s", QETH_CARD_IFNAME(card));
- return -ENOMEM;
- }
- kfree_skb(*skb);
- *skb = new_skb;
- }
- return 0;
+ struct sk_buff *new_skb = skb;
+
+ if (skb_headroom(skb) >= size)
+ return skb;
+ new_skb = skb_realloc_headroom(skb, size);
+ if (!new_skb)
+ PRINT_ERR("Could not realloc headroom for qeth_hdr "
+ "on interface %s", QETH_CARD_IFNAME(card));
+ return new_skb;
}
static inline struct sk_buff *
@@ -885,16 +880,15 @@ qeth_pskb_unshare(struct sk_buff *skb, int pri)
if (!skb_cloned(skb))
return skb;
nskb = skb_copy(skb, pri);
- kfree_skb(skb); /* free our shared copy */
return nskb;
}
static inline void *
-qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
+qeth_push_skb(struct qeth_card *card, struct sk_buff *skb, int size)
{
void *hdr;
- hdr = (void *) skb_push(*skb, size);
+ hdr = (void *) skb_push(skb, size);
/*
* sanity check, the Linux memory allocation scheme should
* never present us cases like this one (the qdio header size plus
@@ -903,8 +897,7 @@ qeth_push_skb(struct qeth_card *card, struct sk_buff **skb, int size)
if ((((unsigned long) hdr) & (~(PAGE_SIZE - 1))) !=
(((unsigned long) hdr + size +
QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
- PRINT_ERR("qeth_prepare_skb: misaligned "
- "packet on interface %s. Discarded.",
+ PRINT_ERR("Misaligned packet on interface %s. Discarded.",
QETH_CARD_IFNAME(card));
return NULL;
}