percpu: add __percpu sparse annotations to net

[safe/jmp/linux-2.6] / include / net / snmp.h

diff --git a/include/net/snmp.h b/include/net/snmp.h
index da02ee0..692ee00 100644 (file)
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -129,9 +129,9 @@ struct linux_xfrm_mib {
  * nonlocked_atomic_inc() primitives -AK
  */ 
 #define DEFINE_SNMP_STAT(type, name)   \
-       __typeof__(type) *name[2]
+       __typeof__(type) __percpu *name[2]
 #define DECLARE_SNMP_STAT(type, name)  \
-       extern __typeof__(type) *name[2]
+       extern __typeof__(type) __percpu *name[2]
 
 #define SNMP_STAT_BHPTR(name)  (name[0])
 #define SNMP_STAT_USRPTR(name) (name[1])
@@ -148,9 +148,13 @@ struct linux_xfrm_mib {
                        __this_cpu_add(mib[0]->mibs[field], addend)
 #define SNMP_ADD_STATS_USER(mib, field, addend)        \
                        this_cpu_add(mib[1]->mibs[field], addend)
+/*
+ * Use "__typeof__(*mib[0]) *ptr" instead of "__typeof__(mib[0]) ptr"
+ * to make @ptr a non-percpu pointer.
+ */
 #define SNMP_UPD_PO_STATS(mib, basefield, addend)      \
        do { \
-               __typeof__(mib[0]) ptr; \
+               __typeof__(*mib[0]) *ptr; \
                preempt_disable(); \
                ptr = this_cpu_ptr((mib)[!in_softirq()]); \
                ptr->mibs[basefield##PKTS]++; \
@@ -159,7 +163,7 @@ struct linux_xfrm_mib {
        } while (0)
 #define SNMP_UPD_PO_STATS_BH(mib, basefield, addend)   \
        do { \
-               __typeof__(mib[0]) ptr = \
+               __typeof__(*mib[0]) *ptr = \
                        __this_cpu_ptr((mib)[!in_softirq()]); \
                ptr->mibs[basefield##PKTS]++; \
                ptr->mibs[basefield##OCTETS] += addend;\