netdev: set __percpu attribute on netdev_alloc_pcpu_stats

This patch fixes sparse warnings in vlan driver.
It propagates the sparse __percpu attribute from alloc_percpu
into netdev_alloc_pcpu_stats. I expect it may trigger additional
sparse warnings from other drivers that are missing the __percpu
attribute.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1a86948..b8d8c80 100644 (file)
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1812,7 +1812,7 @@ struct pcpu_sw_netstats {
 
 #define netdev_alloc_pcpu_stats(type)                          \
 ({                                                             \
-       typeof(type) *pcpu_stats = alloc_percpu(type);          \
+       typeof(type) __percpu *pcpu_stats = alloc_percpu(type); \
        if (pcpu_stats) {                                       \
                int i;                                          \
                for_each_possible_cpu(i) {                      \