diff options
| author |   Nathan Huckleberry <nhuck@google.com> | 2022-09-13 16:07:38 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-09-19 18:28:50 -0700 |
| commit | 8bb7c4f8c9276eb61f7f39cc107f67a0e81de610 (patch) | |
| tree | 98a1e3bcf5bdb316795d9335de4dae25abfbc3ff | |
| parent | net: wwan: t7xx: Fix return type of t7xx_ccmni_start_xmit (diff) | |
| download | linux-dev-8bb7c4f8c9276eb61f7f39cc107f67a0e81de610.tar.xz linux-dev-8bb7c4f8c9276eb61f7f39cc107f67a0e81de610.zip | |
openvswitch: Change the return type for vport_ops.send function hook to int
All usages of the vport_ops struct have the .send field set to
dev_queue_xmit or internal_dev_recv. Since most usages are set to
dev_queue_xmit, the function hook should match the signature of
dev_queue_xmit.
The only call to vport_ops->send() is in net/openvswitch/vport.c and it
throws away the return value.
This mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Link: https://lore.kernel.org/r/20220913230739.228313-1-nhuck@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/openvswitch/vport-internal_dev.c | 2 | ||||
| -rw-r--r-- | net/openvswitch/vport.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c index 35f42c9821c2..74c88a6baa43 100644 --- a/net/openvswitch/vport-internal_dev.c +++ b/net/openvswitch/vport-internal_dev.c @@ -190,7 +190,7 @@ static void internal_dev_destroy(struct vport *vport) rtnl_unlock(); } -static netdev_tx_t internal_dev_recv(struct sk_buff *skb) +static int internal_dev_recv(struct sk_buff *skb) { struct net_device *netdev = skb->dev; diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h index 7d276f60c000..6ff45e8a0868 100644 --- a/net/openvswitch/vport.h +++ b/net/openvswitch/vport.h @@ -132,7 +132,7 @@ struct vport_ops { int (*set_options)(struct vport *, struct nlattr *); int (*get_options)(const struct vport *, struct sk_buff *); - netdev_tx_t (*send) (struct sk_buff *skb); + int (*send)(struct sk_buff *skb); struct module *owner; struct list_head list; }; |