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Merge branch 'net-dev-Make-protocol-ptr-dependent-on-CONFIG'

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David Ahern says:

====================
net: dev: Make protocol ptr dependent on CONFIG

Found these in a branch from 3-years ago. Still relevant today.
Make decnet, ax25, and atalk ptrs in net_device based on their
respective CONFIG.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-02-14 11:55:39 -05:00
commit 1d631583ae
5 changed files with 12 additions and 2 deletions
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2
include/linux/atalk.h
View file

@ -113,10 +113,12 @@ extern void aarp_proto_init(void);
/* Inter module exports */
/* Give a device find its atif control structure */
#if IS_ENABLED(CONFIG_IRDA) || IS_ENABLED(CONFIG_ATALK)
static inline struct atalk_iface *atalk_find_dev(struct net_device *dev)
{
return dev->atalk_ptr;
}
#endif
extern struct atalk_addr *atalk_find_dev_addr(struct net_device *dev);
extern struct net_device *atrtr_get_dev(struct atalk_addr *sa);

6
include/linux/netdevice.h
View file

@ -1798,11 +1798,17 @@ struct net_device {
#if IS_ENABLED(CONFIG_TIPC)
struct tipc_bearer __rcu *tipc_ptr;
#endif
#if IS_ENABLED(CONFIG_IRDA) || IS_ENABLED(CONFIG_ATALK)
void *atalk_ptr;
#endif
struct in_device __rcu *ip_ptr;
#if IS_ENABLED(CONFIG_DECNET)
struct dn_dev __rcu *dn_ptr;
#endif
struct inet6_dev __rcu *ip6_ptr;
#if IS_ENABLED(CONFIG_AX25)
void *ax25_ptr;
#endif
struct wireless_dev *ieee80211_ptr;
struct wpan_dev *ieee802154_ptr;
#if IS_ENABLED(CONFIG_MPLS_ROUTING)

2
include/net/ax25.h
View file

@ -318,10 +318,12 @@ void ax25_digi_invert(const ax25_digi *, ax25_digi *);
extern ax25_dev *ax25_dev_list;
extern spinlock_t ax25_dev_lock;
#if IS_ENABLED(CONFIG_AX25)
static inline ax25_dev *ax25_dev_ax25dev(struct net_device *dev)
{
return dev->ax25_ptr;
}
#endif
ax25_dev *ax25_addr_ax25dev(ax25_address *);
void ax25_dev_device_up(struct net_device *);

3
net/core/dev.c
View file

@ -8134,8 +8134,9 @@ void netdev_run_todo(void)
BUG_ON(!list_empty(&dev->ptype_specific));
WARN_ON(rcu_access_pointer(dev->ip_ptr));
WARN_ON(rcu_access_pointer(dev->ip6_ptr));
#if IS_ENABLED(CONFIG_DECNET)
WARN_ON(dev->dn_ptr);
#endif
if (dev->priv_destructor)
dev->priv_destructor(dev);
if (dev->needs_free_netdev)

1
net/socket.c
View file

@ -104,7 +104,6 @@
#include <linux/ipv6_route.h>
#include <linux/route.h>
#include <linux/sockios.h>
#include <linux/atalk.h>
#include <net/busy_poll.h>
#include <linux/errqueue.h>