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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/dccp
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/dccp')
-rw-r--r--net/dccp/proto.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 85ec1cb7fd41..0ef7061920c0 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -1005,12 +1005,13 @@ EXPORT_SYMBOL_GPL(dccp_shutdown);
static inline int dccp_mib_init(void)
{
- return snmp_mib_init((void**)dccp_statistics, sizeof(struct dccp_mib));
+ return snmp_mib_init((void __percpu **)dccp_statistics,
+ sizeof(struct dccp_mib));
}
static inline void dccp_mib_exit(void)
{
- snmp_mib_free((void**)dccp_statistics);
+ snmp_mib_free((void __percpu **)dccp_statistics);
}
static int thash_entries;