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When b43legacy is compiled on the arm platform, the following errors are seen: CC [M] drivers/net/wireless/b43legacy/xmit.o In file included from include/net/dst.h:11, from drivers/net/wireless/b43legacy/xmit.c:31: include/net/dst_ops.h:28: error: expected ':', ',', ';', '}' or '__attribute__' before '____cacheline_aligned_in_smp' include/net/dst_ops.h: In function 'dst_entries_get_fast': include/net/dst_ops.h:33: error: 'struct dst_ops' has no member named 'pcpuc_entries' include/net/dst_ops.h: In function 'dst_entries_get_slow': include/net/dst_ops.h:41: error: 'struct dst_ops' has no member named 'pcpuc_entries' include/net/dst_ops.h: In function 'dst_entries_add': include/net/dst_ops.h:49: error: 'struct dst_ops' has no member named 'pcpuc_entries' include/net/dst_ops.h: In function 'dst_entries_init': include/net/dst_ops.h:55: error: 'struct dst_ops' has no member named 'pcpuc_entries' include/net/dst_ops.h: In function 'dst_entries_destroy': include/net/dst_ops.h:60: error: 'struct dst_ops' has no member named 'pcpuc_entries' make[4]: *** [drivers/net/wireless/b43legacy/xmit.o] Error 1 make[3]: *** [drivers/net/wireless/b43legacy] Error 2 make[2]: *** [drivers/net/wireless] Error 2 make[1]: *** [drivers/net] Error 2 make: *** [drivers] Error 2 The cause is a missing include of <linux/cache.h>, which is present for i386 and x86_64 architectures, but not for arm. Signed-off-by: Arnd Hannemann <arnd@arndnet.de> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
#ifndef _NET_DST_OPS_H
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#define _NET_DST_OPS_H
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#include <linux/types.h>
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#include <linux/percpu_counter.h>
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#include <linux/cache.h>
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struct dst_entry;
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struct kmem_cachep;
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struct net_device;
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struct sk_buff;
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struct dst_ops {
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unsigned short family;
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__be16 protocol;
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unsigned gc_thresh;
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int (*gc)(struct dst_ops *ops);
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struct dst_entry * (*check)(struct dst_entry *, __u32 cookie);
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void (*destroy)(struct dst_entry *);
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void (*ifdown)(struct dst_entry *,
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struct net_device *dev, int how);
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struct dst_entry * (*negative_advice)(struct dst_entry *);
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void (*link_failure)(struct sk_buff *);
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void (*update_pmtu)(struct dst_entry *dst, u32 mtu);
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int (*local_out)(struct sk_buff *skb);
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struct kmem_cache *kmem_cachep;
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struct percpu_counter pcpuc_entries ____cacheline_aligned_in_smp;
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};
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static inline int dst_entries_get_fast(struct dst_ops *dst)
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{
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return percpu_counter_read_positive(&dst->pcpuc_entries);
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}
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static inline int dst_entries_get_slow(struct dst_ops *dst)
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{
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int res;
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local_bh_disable();
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res = percpu_counter_sum_positive(&dst->pcpuc_entries);
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local_bh_enable();
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return res;
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}
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static inline void dst_entries_add(struct dst_ops *dst, int val)
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{
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local_bh_disable();
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percpu_counter_add(&dst->pcpuc_entries, val);
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local_bh_enable();
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}
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static inline int dst_entries_init(struct dst_ops *dst)
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{
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return percpu_counter_init(&dst->pcpuc_entries, 0);
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}
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static inline void dst_entries_destroy(struct dst_ops *dst)
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{
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percpu_counter_destroy(&dst->pcpuc_entries);
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}
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#endif
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