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From: Stefan Weil on 3 Aug 2010 13:10
Without forward declaration for struct sk_buff, compilation
of drivers/net/phy/fixed.c results in a warning:

CC drivers/net/phy/fixed.o
In file included from drivers/net/phy/fixed.c:20:
include/linux/phy.h:342: warning: 'struct sk_buff' declared inside parameter list
include/linux/phy.h:342: warning: its scope is only this definition or declaration, which is probably not what you want
include/linux/phy.h:343: warning: 'struct sk_buff' declared inside parameter list

(tested with linux kernel for openwrt / ar7, gcc-4.1.2)

Cc: David S. Miller <davem(a)davemloft.net>
Cc: Anton Vorontsov <avorontsov(a)ru.mvista.com>
Cc: Ben Hutchings <ben(a)decadent.org.uk>
Cc: Jason Gunthorpe <jgunthorpe(a)obsidianresearch.com>
Cc: linux-kernel(a)vger.kernel.org
Signed-off-by: Stefan Weil <weil(a)mail.berlios.de>
---
include/linux/phy.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/linux/phy.h b/include/linux/phy.h
index 987e111..65e8d72 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -51,6 +51,8 @@
#define PHY_HAS_INTERRUPT 0x00000001
#define PHY_HAS_MAGICANEG 0x00000002

+struct sk_buff;
+
/* Interface Mode definitions */
typedef enum {
PHY_INTERFACE_MODE_MII,
--
1.5.6.5

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