[PATCH] powerpc/pseries: Simplify attribute description check in papr_init()

[Thorsten Blum]

Check only the first byte instead of scanning the entire string with
strnlen().

Signed-off-by: Thorsten Blum <thorsten.blum@xxxxxxxxx>
---
 arch/powerpc/platforms/pseries/papr_platform_attributes.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/papr_platform_attributes.c b/arch/powerpc/platforms/pseries/papr_platform_attributes.c
index c6159870de0e..ff8adda02341 100644
--- a/arch/powerpc/platforms/pseries/papr_platform_attributes.c
+++ b/arch/powerpc/platforms/pseries/papr_platform_attributes.c
@@ -325,12 +325,8 @@ static int __init papr_init(void)
 	}
 
 	for (idx = 0; idx < num_attrs; idx++) {
-		bool show_val_desc = true;
-
 		/* Do not add the value desc attr if it does not exist */
-		if (strnlen(esi_attrs[idx].value_desc,
-			    sizeof(esi_attrs[idx].value_desc)) == 0)
-			show_val_desc = false;
+		bool show_val_desc = *esi_attrs[idx].value_desc != '\0';
 
 		if (add_attr_group(be64_to_cpu(esi_attrs[idx].id),
 				   &papr_groups[idx],