This driver has landed with Linux 0.99.13k, which was covered by the GNU
General Public License version 2, and no further conditions as to
licensing terms have been specified within the copyright notice included
with the driver itself.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
---
 drivers/net/ethernet/3com/3c509.c |    1 +
 1 file changed, 1 insertion(+)

linux-3c509-spdx.diff
Index: linux-3c509/drivers/net/ethernet/3com/3c509.c
===================================================================

--- linux-3c509.orig/drivers/net/ethernet/3com/3c509.c
+++ linux-3c509/drivers/net/ethernet/3com/3c509.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */
 /*
 	Written 1993-2000 by Donald Becker.