We prefer to ARRAY_SIZE rather than duplicating its implementation.
So just replace it.

Signed-off-by: zhong jiang <zhongji...@huawei.com>
---
 arch/ia64/kernel/perfmon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index a9d4dc6..6cbe6e0 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -4645,7 +4645,7 @@ static char *pfmfs_dname(struct dentry *dentry, char 
*buffer, int buflen)
 /* 32 */PFM_CMD(pfm_write_ibrs, PFM_CMD_PCLRWS, PFM_CMD_ARG_MANY, 
pfarg_dbreg_t, NULL),
 /* 33 */PFM_CMD(pfm_write_dbrs, PFM_CMD_PCLRWS, PFM_CMD_ARG_MANY, 
pfarg_dbreg_t, NULL)
 };
-#define PFM_CMD_COUNT  (sizeof(pfm_cmd_tab)/sizeof(pfm_cmd_desc_t))
+#define PFM_CMD_COUNT  ARRAY_SIZE(pfm_cmd_tab)
 
 static int
 pfm_check_task_state(pfm_context_t *ctx, int cmd, unsigned long flags)
-- 
1.7.12.4

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