ia64: mca_drv: fix incorrect array size calculation

From: Arnd Bergmann <[email protected]>

gcc points out a mistake in the mca driver that goes back to before the git history:

arch/ia64/kernel/mca_drv.c: In function 'init_record_index_pools':
arch/ia64/kernel/mca_drv.c:346:54: error: expression does not compute the number of elements in this array; element typ e is 'int', not 'size_t' {aka 'long unsigned int'} [-Werror=sizeof-array-div]
346 | for (i = 1; i < sizeof sal_log_sect_min_sizes/sizeof(size_t); i++)
| ^

This is the same as sizeof(size_t), which is two shorter than the actual array. Use the ARRAY_SIZE() macro to get the correct calculation instead.

---
 arch/ia64/kernel/mca_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 36a69b4e6169..5bfc79be4cef 100644
@@ -343,7 +343,7 @@ init_record_index_pools(void)
 
 	/* - 2 - */
 	sect_min_size = sal_log_sect_min_sizes[0];
-	for (i = 1; i < sizeof sal_log_sect_min_sizes/sizeof(size_t); i++)
+	for (i = 1; i < ARRAY_SIZE(sal_log_sect_min_sizes); i++)
 		if (sect_min_size > sal_log_sect_min_sizes[i])
 			sect_min_size = sal_log_sect_min_sizes[i];
 

2.29.2