integ/kernel/kernel-rt/centos/patches/Make-kernel-start-eth-devic...

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From 97a7d3c050d7996f6a630184fa428a4d170c2ea8 Mon Sep 17 00:00:00 2001
Message-Id: <97a7d3c050d7996f6a630184fa428a4d170c2ea8.1528226387.git.Jim.Somerville@windriver.com>
In-Reply-To: <c8270e79f6b7008fde44b8d5aa6314d8cf89d3ed.1528226387.git.Jim.Somerville@windriver.com>
References: <c8270e79f6b7008fde44b8d5aa6314d8cf89d3ed.1528226387.git.Jim.Somerville@windriver.com>
From: Chris Friesen <chris.friesen@windriver.com>
Date: Thu, 12 May 2016 18:00:00 -0400
Subject: [PATCH 09/32] Make kernel start eth devices at offset
In order to avoid naming collisions, we want to make the kernel
start naming its "ethX" devices at eth1000 instead of eth0. This
will let us rename to a range starting at eth0.
Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
---
net/core/dev.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/net/core/dev.c b/net/core/dev.c
index 1425f9d..db04f3b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1092,6 +1092,12 @@ static int __dev_alloc_name(struct net *net, const char *name, char *buf)
set_bit(i, inuse);
}
+ /* STX extension, want kernel to start at eth1000 */
+ if (strcmp(name, "eth%d") == 0) {
+ for (i=0; i < 1000; i++)
+ set_bit(i, inuse);
+ }
+
i = find_first_zero_bit(inuse, max_netdevices);
free_page((unsigned long) inuse);
}
--
1.8.3.1