diff options
| author | Nathan Huckleberry <nhuck@google.com> | 2022-09-14 14:07:50 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-24 13:05:33 +0200 |
| commit | 2851349ac351010a2649e0ff86a1e3d68fe5d683 (patch) | |
| tree | 1a93062bda8ee588cc5ff8983e38d22341c11d92 /drivers/staging/rtl8192u | |
| parent | 2a2db520e3ca5aafba7c211abfd397666c9b5f9d (diff) | |
| download | lwn-2851349ac351010a2649e0ff86a1e3d68fe5d683.tar.gz lwn-2851349ac351010a2649e0ff86a1e3d68fe5d683.zip | |
staging: rtl8192u: Fix return type of ieee80211_xmit
The ndo_start_xmit field in net_device_ops is expected to be of type
netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev).
The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.
The return type of ieee80211_xmit should be changed from int to
netdev_tx_t.
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Reported-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Link: https://lore.kernel.org/r/20220914210750.423048-1-nhuck@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rtl8192u')
| -rw-r--r-- | drivers/staging/rtl8192u/ieee80211/ieee80211.h | 2 | ||||
| -rw-r--r-- | drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h index b577f9c81f85..9cd4b1896745 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h @@ -2178,7 +2178,7 @@ int ieee80211_set_encryption(struct ieee80211_device *ieee); int ieee80211_encrypt_fragment(struct ieee80211_device *ieee, struct sk_buff *frag, int hdr_len); -int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev); +netdev_tx_t ieee80211_xmit(struct sk_buff *skb, struct net_device *dev); void ieee80211_txb_free(struct ieee80211_txb *txb); diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c index 8602e3a6c837..e4b6454809a0 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c @@ -526,7 +526,7 @@ static void ieee80211_query_seqnum(struct ieee80211_device *ieee, } } -int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) +netdev_tx_t ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) { struct ieee80211_device *ieee = netdev_priv(dev); struct ieee80211_txb *txb = NULL; @@ -822,13 +822,13 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) if ((*ieee->hard_start_xmit)(txb, dev) == 0) { stats->tx_packets++; stats->tx_bytes += __le16_to_cpu(txb->payload_size); - return 0; + return NETDEV_TX_OK; } ieee80211_txb_free(txb); } } - return 0; + return NETDEV_TX_OK; failed: spin_unlock_irqrestore(&ieee->lock, flags); |