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openvswitch/datapath/linux/compat/include/net/dst.h

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gre: Compatibility with older Linux kernel versions. The upcoming GRE kernel module compiles on a range (2.6.18+) of Linux kernel versions. The module expects the kernel headers to look like newer versions. Where older and newer versions of the kernel differ this commit implements shims to paper over the changes.
2009-12-02 18:56:36 -08:00
#ifndef __NET_DST_WRAPPER_H
#define __NET_DST_WRAPPER_H 1
datapath: Support for kernel 3.3 Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com>
2012-03-23 10:50:08 -07:00
#include <linux/version.h>
gre: Compatibility with older Linux kernel versions. The upcoming GRE kernel module compiles on a range (2.6.18+) of Linux kernel versions. The module expects the kernel headers to look like newer versions. Where older and newer versions of the kernel differ this commit implements shims to paper over the changes.
2009-12-02 18:56:36 -08:00
#include_next <net/dst.h>
datapath: Support for kernel 3.3 Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com>
2012-03-23 10:50:08 -07:00
#if LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0) && \
LINUX_VERSION_CODE > KERNEL_VERSION(3,0,20)
#define dst_get_neighbour_noref dst_get_neighbour
#endif
Don't define "skb_dst_drop" if other skb_dst accessor funcs are defined When "skb_dst" is included in the kernel sources, don't redefine "skb_dst_drop", which is defined in dst.h.
2010-05-17 13:57:29 -07:00
#ifndef HAVE_SKB_DST_ACCESSOR_FUNCS
gre: Compatibility with older Linux kernel versions. The upcoming GRE kernel module compiles on a range (2.6.18+) of Linux kernel versions. The module expects the kernel headers to look like newer versions. Where older and newer versions of the kernel differ this commit implements shims to paper over the changes.
2009-12-02 18:56:36 -08:00
static inline void skb_dst_drop(struct sk_buff *skb)
{
if (skb->dst)
dst_release(skb_dst(skb));
datapath: Use NULL for null pointer in compat code. Fixes a sparse warning on 2.6.18: datapath/linux-2.6/compat-2.6/include/net/dst.h:12:20: warning: Using plain integer as NULL pointer Signed-off-by: Ben Pfaff <blp@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com>
2011-01-12 09:49:44 -08:00
skb->dst = NULL;
gre: Compatibility with older Linux kernel versions. The upcoming GRE kernel module compiles on a range (2.6.18+) of Linux kernel versions. The module expects the kernel headers to look like newer versions. Where older and newer versions of the kernel differ this commit implements shims to paper over the changes.
2009-12-02 18:56:36 -08:00
}
Don't define "skb_dst_drop" if other skb_dst accessor funcs are defined When "skb_dst" is included in the kernel sources, don't redefine "skb_dst_drop", which is defined in dst.h.
2010-05-17 13:57:29 -07:00
#endif
gre: Compatibility with older Linux kernel versions. The upcoming GRE kernel module compiles on a range (2.6.18+) of Linux kernel versions. The module expects the kernel headers to look like newer versions. Where older and newer versions of the kernel differ this commit implements shims to paper over the changes.
2009-12-02 18:56:36 -08:00
#endif
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