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authorTejun Heo <tj@kernel.org>2010-02-16 15:20:26 +0000
committerDavid S. Miller <davem@davemloft.net>2010-02-16 23:05:38 -0800
commit7d720c3e4f0c4fc152a6bf17e24244a3c85412d2 (patch)
tree36e037187ce79acb211702bea22e99c625787757 /net/ipv6/af_inet6.c
parent2bb4646fce8d09916b351d1a62f98db7cec6fc41 (diff)
percpu: add __percpu sparse annotations to net
Add __percpu sparse annotations to net. These annotations are to make sparse consider percpu variables to be in a different address space and warn if accessed without going through percpu accessors. This patch doesn't affect normal builds. The macro and type tricks around snmp stats make things a bit interesting. DEFINE/DECLARE_SNMP_STAT() macros mark the target field as __percpu and SNMP_UPD_PO_STATS() macro is updated accordingly. All snmp_mib_*() users which used to cast the argument to (void **) are updated to cast it to (void __percpu **). Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Patrick McHardy <kaber@trash.net> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Vlad Yasevich <vladislav.yasevich@hp.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/af_inet6.c')
-rw-r--r--net/ipv6/af_inet6.c28
1 files changed, 14 insertions, 14 deletions
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index e29160ff4a0..37d14e735c2 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -971,41 +971,41 @@ static void ipv6_packet_cleanup(void)
static int __net_init ipv6_init_mibs(struct net *net)
{
- if (snmp_mib_init((void **)net->mib.udp_stats_in6,
+ if (snmp_mib_init((void __percpu **)net->mib.udp_stats_in6,
sizeof (struct udp_mib)) < 0)
return -ENOMEM;
- if (snmp_mib_init((void **)net->mib.udplite_stats_in6,
+ if (snmp_mib_init((void __percpu **)net->mib.udplite_stats_in6,
sizeof (struct udp_mib)) < 0)
goto err_udplite_mib;
- if (snmp_mib_init((void **)net->mib.ipv6_statistics,
+ if (snmp_mib_init((void __percpu **)net->mib.ipv6_statistics,
sizeof(struct ipstats_mib)) < 0)
goto err_ip_mib;
- if (snmp_mib_init((void **)net->mib.icmpv6_statistics,
+ if (snmp_mib_init((void __percpu **)net->mib.icmpv6_statistics,
sizeof(struct icmpv6_mib)) < 0)
goto err_icmp_mib;
- if (snmp_mib_init((void **)net->mib.icmpv6msg_statistics,
+ if (snmp_mib_init((void __percpu **)net->mib.icmpv6msg_statistics,
sizeof(struct icmpv6msg_mib)) < 0)
goto err_icmpmsg_mib;
return 0;
err_icmpmsg_mib:
- snmp_mib_free((void **)net->mib.icmpv6_statistics);
+ snmp_mib_free((void __percpu **)net->mib.icmpv6_statistics);
err_icmp_mib:
- snmp_mib_free((void **)net->mib.ipv6_statistics);
+ snmp_mib_free((void __percpu **)net->mib.ipv6_statistics);
err_ip_mib:
- snmp_mib_free((void **)net->mib.udplite_stats_in6);
+ snmp_mib_free((void __percpu **)net->mib.udplite_stats_in6);
err_udplite_mib:
- snmp_mib_free((void **)net->mib.udp_stats_in6);
+ snmp_mib_free((void __percpu **)net->mib.udp_stats_in6);
return -ENOMEM;
}
static void ipv6_cleanup_mibs(struct net *net)
{
- snmp_mib_free((void **)net->mib.udp_stats_in6);
- snmp_mib_free((void **)net->mib.udplite_stats_in6);
- snmp_mib_free((void **)net->mib.ipv6_statistics);
- snmp_mib_free((void **)net->mib.icmpv6_statistics);
- snmp_mib_free((void **)net->mib.icmpv6msg_statistics);
+ snmp_mib_free((void __percpu **)net->mib.udp_stats_in6);
+ snmp_mib_free((void __percpu **)net->mib.udplite_stats_in6);
+ snmp_mib_free((void __percpu **)net->mib.ipv6_statistics);
+ snmp_mib_free((void __percpu **)net->mib.icmpv6_statistics);
+ snmp_mib_free((void __percpu **)net->mib.icmpv6msg_statistics);
}
static int __net_init inet6_net_init(struct net *net)