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| author |   Hayes Wang <hayeswang@realtek.com> | 2022-07-13 11:31:11 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-07-13 14:52:49 +0100 |
| commit | 057cc8c9005e23330e368afd18839ce3764dc0af (patch) | |
| tree | 693d65147bbb90c0725c0c24b2c4ecf62d0447fb /drivers/net/usb/r8152.c | |
| parent | Merge tag 'wireless-2022-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless (diff) | |
| download | linux-dev-057cc8c9005e23330e368afd18839ce3764dc0af.tar.xz linux-dev-057cc8c9005e23330e368afd18839ce3764dc0af.zip | |
r8152: fix accessing unset transport header
A warning is triggered by commit 66e4c8d95008 ("net: warn if transport
header was not set"). The warning is harmless, because the value from
skb_transport_offset() is only used for skb_is_gso() is true or the
skb->ip_summed is equal to CHECKSUM_PARTIAL.
Fixes: 66e4c8d95008 ("net: warn if transport header was not set")
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/usb/r8152.c')
| -rw-r--r-- | drivers/net/usb/r8152.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 7389d6ef8569..b082819509e1 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -2156,7 +2156,7 @@ static inline void rtl_rx_vlan_tag(struct rx_desc *desc, struct sk_buff *skb) } static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, - struct sk_buff *skb, u32 len, u32 transport_offset) + struct sk_buff *skb, u32 len) { u32 mss = skb_shinfo(skb)->gso_size; u32 opts1, opts2 = 0; @@ -2167,6 +2167,8 @@ static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, opts1 = len | TX_FS | TX_LS; if (mss) { + u32 transport_offset = (u32)skb_transport_offset(skb); + if (transport_offset > GTTCPHO_MAX) { netif_warn(tp, tx_err, tp->netdev, "Invalid transport offset 0x%x for TSO\n", @@ -2197,6 +2199,7 @@ static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, opts1 |= transport_offset << GTTCPHO_SHIFT; opts2 |= min(mss, MSS_MAX) << MSS_SHIFT; } else if (skb->ip_summed == CHECKSUM_PARTIAL) { + u32 transport_offset = (u32)skb_transport_offset(skb); u8 ip_protocol; if (transport_offset > TCPHO_MAX) { @@ -2260,7 +2263,6 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg) struct tx_desc *tx_desc; struct sk_buff *skb; unsigned int len; - u32 offset; skb = __skb_dequeue(&skb_head); if (!skb) @@ -2276,9 +2278,7 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg) tx_data = tx_agg_align(tx_data); tx_desc = (struct tx_desc *)tx_data; - offset = (u32)skb_transport_offset(skb); - - if (r8152_tx_csum(tp, tx_desc, skb, skb->len, offset)) { + if (r8152_tx_csum(tp, tx_desc, skb, skb->len)) { r8152_csum_workaround(tp, skb, &skb_head); continue; } @@ -2759,9 +2759,9 @@ rtl8152_features_check(struct sk_buff *skb, struct net_device *dev, { u32 mss = skb_shinfo(skb)->gso_size; int max_offset = mss ? GTTCPHO_MAX : TCPHO_MAX; - int offset = skb_transport_offset(skb); - if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && offset > max_offset) + if ((mss || skb->ip_summed == CHECKSUM_PARTIAL) && + skb_transport_offset(skb) > max_offset) features &= ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK); else if ((skb->len + sizeof(struct tx_desc)) > agg_buf_sz) features &= ~NETIF_F_GSO_MASK; |