[PATCH net-next 8/9] qlcnic: use pskb_may_pull() to pull excess TX frags into the head

[Josef Bacik <josef@xxxxxxxxxxxxxx>]

qlcnic_xmit_frame() pulls the frags that don't fit in a TX descriptor
into the head with __pskb_pull_tail().  It already checks the result.
Switch to pskb_may_pull(), which takes the length the head should end
up with and checks it against the skb, so this driver no longer calls
__pskb_pull_tail() directly.

Assisted-by: LLM
Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c 
b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 761ef3bc8193..4a81d499e51c 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -682,7 +682,7 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct 
net_device *netdev)
                for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
                        delta += skb_frag_size(&skb_shinfo(skb)->frags[i]);
 
-               if (!__pskb_pull_tail(skb, delta))
+               if (!pskb_may_pull(skb, skb_headlen(skb) + delta))
                        goto drop_packet;
 
                frag_count = 1 + skb_shinfo(skb)->nr_frags;

-- 
2.55.0