From 7f6bdd72b1260396f2e2ea0efde8cfb3ca7f56d4 Mon Sep 17 00:00:00 2001
From: Stefan Lankes <slankes@eonerc.rwth-aachen.de>
Date: Thu, 3 Aug 2017 22:30:30 +0200
Subject: [PATCH] add option to enable e1000 driver

---
 drivers/net/e1000.c | 4 ++++
 drivers/net/e1000.h | 4 ++++
 kernel/main.c       | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/drivers/net/e1000.c b/drivers/net/e1000.c
index c460f96f6..330c16f5c 100644
--- a/drivers/net/e1000.c
+++ b/drivers/net/e1000.c
@@ -45,6 +45,8 @@
 #include <netif/etharp.h>
 #include <net/e1000.h>
 
+#if USE_E1000
+
 #define RX_BUF_LEN      (2048)
 #define TX_BUF_LEN      (1792)
 
@@ -603,3 +605,5 @@ oom:
 
 	return ERR_MEM;
 }
+
+#endif
diff --git a/drivers/net/e1000.h b/drivers/net/e1000.h
index 08f0d886f..49ade1225 100644
--- a/drivers/net/e1000.h
+++ b/drivers/net/e1000.h
@@ -32,6 +32,8 @@
 #include <hermit/stddef.h>
 #include <hermit/spinlock.h>
 
+#ifdef USE_E1000
+
 #define NUM_RX_DESCRIPTORS	64
 #define NUM_TX_DESCRIPTORS	64
 
@@ -324,3 +326,5 @@ typedef struct e1000if {
 err_t e1000if_init(struct netif* netif);
 
 #endif
+
+#endif
diff --git a/kernel/main.c b/kernel/main.c
index d2fe61327..b5c0bf214 100644
--- a/kernel/main.c
+++ b/kernel/main.c
@@ -206,8 +206,10 @@ static int init_netifs(void)
 			goto success;
 		if ((err = netifapi_netif_add(&default_netif, ip_2_ip4(&ipaddr), ip_2_ip4(&netmask), ip_2_ip4(&gw), NULL, rtl8139if_init, ethernet_input)) == ERR_OK)
 			goto success;
+#ifdef USE_E1000
 		if ((err = netifapi_netif_add(&default_netif, ip_2_ip4(&ipaddr), ip_2_ip4(&netmask), ip_2_ip4(&gw), NULL, e1000if_init, ethernet_input)) == ERR_OK)
 			goto success;
+#endif
 
 		LOG_ERROR("Unable to add the network interface: err = %d\n", err);