[PATCH] arcnet: com90xx: Mark cards and numcards variables as __ro_after_init

[Len Bao]

The 'cards' and 'numcards' variables are initialized only during the
init phase in the 'com90xx_found' function and never changed. So, mark
these as __ro_after_init.

Signed-off-by: Len Bao <len.bao@xxxxxx>
---
 drivers/net/arcnet/com90xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/arcnet/com90xx.c b/drivers/net/arcnet/com90xx.c
index b3b287c16..bdcdccbfb 100644
--- a/drivers/net/arcnet/com90xx.c
+++ b/drivers/net/arcnet/com90xx.c
@@ -67,8 +67,8 @@ static void com90xx_copy_from_card(struct net_device *dev, int bufnum,
 
 /* Known ARCnet cards */
 
-static struct net_device *cards[16];
-static int numcards;
+static struct net_device *cards[16] __ro_after_init;
+static int numcards __ro_after_init;
 
 /* Handy defines for ARCnet specific stuff */
 
-- 
2.43.0