Update src/sys/socket/mod.rs

Co-authored-by: Alan Somers <[email protected]>

Author: fpagliughi

src/sys/socket/mod.rs

@@ -234,13 +234,14 @@ pub enum SockProtocol {
     CanRaw = libc::CAN_RAW,
 }
 
-/// The Controller Area Network broadcast manager protocol
-/// ([ref](https://docs.kernel.org/networking/can.html#how-to-use-socketcan))
-#[cfg(target_os = "linux")]
-#[cfg_attr(docsrs, doc(cfg(all())))]
-#[allow(non_upper_case_globals)]
-pub const CanBcm: SockProtocol = SockProtocol::NetlinkUserSock; // Matches libc::CAN_BCM
-
+impl SockProtocol {
+    /// The Controller Area Network broadcast manager protocol
+    /// ([ref](https://docs.kernel.org/networking/can.html#how-to-use-socketcan))
+    #[cfg(target_os = "linux")]
+    #[cfg_attr(docsrs, doc(cfg(all())))]
+    #[allow(non_upper_case_globals)]
+    pub const CanBcm: SockProtocol = SockProtocol::NetlinkUserSock; // Matches libc::CAN_BCM
+}
 #[cfg(any(target_os = "linux"))]
 libc_bitflags! {
     /// Configuration flags for `SO_TIMESTAMPING` interface