diff options
| author | Nathan Huckleberry <nhuck@google.com> | 2022-09-14 02:07:38 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-09-20 04:28:50 +0300 |
| commit | 8bb7c4f8c9276eb61f7f39cc107f67a0e81de610 (patch) | |
| tree | 98a1e3bcf5bdb316795d9335de4dae25abfbc3ff /net/openvswitch/vport.h | |
| parent | 73c99e26036529e633a0f2d628ad7ddff6594668 (diff) | |
| download | linux-8bb7c4f8c9276eb61f7f39cc107f67a0e81de610.tar.xz | |
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>
Diffstat (limited to 'net/openvswitch/vport.h')
| -rw-r--r-- | net/openvswitch/vport.h | 2 |
1 files changed, 1 insertions, 1 deletions
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; }; |