[PATCH] ipmi: use ARRAY_SIZE for poweroff_functions array sizing calculation

[Colin King]

From: Colin Ian King <colin.k...@canonical.com>

Use the ARRAY_SIZE macro on a array poweroff_functions to determine
size of the array. Improvement suggested by Coccinelle.

Signed-off-by: Colin Ian King <colin.k...@canonical.com>
---
 drivers/char/ipmi/ipmi_poweroff.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_poweroff.c 
b/drivers/char/ipmi/ipmi_poweroff.c
index 07fa366bc8f0..fccb1e9fd3b7 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -519,8 +519,7 @@ static struct poweroff_function poweroff_functions[] = {
          .detect               = ipmi_chassis_detect,
          .poweroff_func        = ipmi_poweroff_chassis },
 };
-#define NUM_PO_FUNCS (sizeof(poweroff_functions) \
-                     / sizeof(struct poweroff_function))
+#define NUM_PO_FUNCS ARRAY_SIZE(poweroff_functions)
 
 
 /* Called on a powerdown request. */
-- 
2.15.1