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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/xfrm/xfrm_proc.c
parent2bb4646fce8d09916b351d1a62f98db7cec6fc41 (diff)
downloadkernel-7d720c3e4f0c4fc152a6bf17e24244a3c85412d2.tar.gz
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/xfrm/xfrm_proc.c')
-rw-r--r--net/xfrm/xfrm_proc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_proc.c b/net/xfrm/xfrm_proc.c
index c083a4e4e796..003f2c437ac3 100644
--- a/net/xfrm/xfrm_proc.c
+++ b/net/xfrm/xfrm_proc.c
@@ -50,7 +50,8 @@ static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
int i;
for (i=0; xfrm_mib_list[i].name; i++)
seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name,
- snmp_fold_field((void **)net->mib.xfrm_statistics,
+ snmp_fold_field((void __percpu **)
+ net->mib.xfrm_statistics,
xfrm_mib_list[i].entry));
return 0;
}