genhd: overlapping variable definition
This fixes the sparse warning:
fs/ext4/super.c:2390:40: warning: symbol 'i' shadows an earlier one
fs/ext4/super.c:2368:22: originally declared here
Using 'i' in a macro is dubious practice.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index c6c0c41..9717081 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -256,9 +256,9 @@
#define part_stat_read(part, field) \
({ \
typeof((part)->dkstats->field) res = 0; \
- int i; \
- for_each_possible_cpu(i) \
- res += per_cpu_ptr((part)->dkstats, i)->field; \
+ unsigned int _cpu; \
+ for_each_possible_cpu(_cpu) \
+ res += per_cpu_ptr((part)->dkstats, _cpu)->field; \
res; \
})