It will be null op in any cases. I want to do this, because it allows
to push solock() down to sosplice() and make future sblock()/solock()
dances easier with standalone sblock().
Index: sys/kern/uipc_socket.c
===================================================================
RCS file: /cvs/src/sys/kern/uipc_socket.c,v
retrieving revision 1.299
diff -u -p -r1.299 uipc_socket.c
--- sys/kern/uipc_socket.c 27 Jan 2023 21:01:59 -0000 1.299
+++ sys/kern/uipc_socket.c 28 Jan 2023 10:59:50 -0000
@@ -1932,7 +1932,8 @@ sosetopt(struct socket *so, int level, i
mtod(m, struct splice *)->sp_max,
&mtod(m, struct splice *)->sp_idle);
}
- break;
+
+ return (error);
#endif /* SOCKET_SPLICE */
default:
