[PATCH] soreuseport: add compat case for setsockopt SO_ATTACH_REUSEPORT_CBPF

[Helge Deller]

Commit 538950a ("soreuseport: setsockopt SO_ATTACH_REUSEPORT_[CE]BPF")
missed to add the compat case for the SO_ATTACH_REUSEPORT_CBPF
setsockoption() option.

Since both SO_ATTACH_FILTER and SO_ATTACH_REUSEPORT_CBPF use a struct
sock_fprog let's combine the handling of both.

Signed-off-by: Helge Deller <del...@gmx.de>

diff --git a/net/compat.c b/net/compat.c
index 5cfd26a..7e2aac9 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -309,7 +309,7 @@ void scm_detach_fds_compat(struct msghdr *kmsg, struct 
scm_cookie *scm)
        __scm_destroy(scm);
 }
 
-static int do_set_attach_filter(struct socket *sock, int level, int optname,
+static int do_sockopt_fix_sock_fprog(struct socket *sock, int level, int 
optname,
                                char __user *optval, unsigned int optlen)
 {
        struct compat_sock_fprog __user *fprog32 = (struct compat_sock_fprog 
__user *)optval;
@@ -354,8 +354,9 @@ static int do_set_sock_timeout(struct socket *sock, int 
level,
 static int compat_sock_setsockopt(struct socket *sock, int level, int optname,
                                char __user *optval, unsigned int optlen)
 {
-       if (optname == SO_ATTACH_FILTER)
-               return do_set_attach_filter(sock, level, optname,
+       if (optname == SO_ATTACH_FILTER ||
+           optname == SO_ATTACH_REUSEPORT_CBPF)
+               return do_sockopt_fix_sock_fprog(sock, level, optname,
                                            optval, optlen);
        if (optname == SO_RCVTIMEO || optname == SO_SNDTIMEO)
                return do_set_sock_timeout(sock, level, optname, optval, 
optlen);