[PATCH] mailbox: mailbox-xgene-slimpro: constify mbox_chan_ops structure

[Bhumika Goyal]

Declare mbox_chan_ops structure as const as it is only stored in the ops
field of a mbox_controller structure. This field is of type const, so
add const to structure declaration of mbox_chan_ops structure.

File size before:
 text      data     bss     dec     hex filename
   1592     248       0    1840     730 mailbox/mailbox-xgene-slimpro.o

File size after:
  text     data     bss     dec     hex filename
   1648     192       0    1840     730 mailbox/mailbox-xgene-slimpro.o

Signed-off-by: Bhumika Goyal <bhumi...@gmail.com>
---
 drivers/mailbox/mailbox-xgene-slimpro.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/mailbox-xgene-slimpro.c 
b/drivers/mailbox/mailbox-xgene-slimpro.c
index dd2afbc..a704016 100644
--- a/drivers/mailbox/mailbox-xgene-slimpro.c
+++ b/drivers/mailbox/mailbox-xgene-slimpro.c
@@ -174,7 +174,7 @@ static void slimpro_mbox_shutdown(struct mbox_chan *chan)
        devm_free_irq(mb_chan->dev, mb_chan->irq, mb_chan);
 }
 
-static struct mbox_chan_ops slimpro_mbox_ops = {
+static const struct mbox_chan_ops slimpro_mbox_ops = {
        .send_data = slimpro_mbox_send_data,
        .startup = slimpro_mbox_startup,
        .shutdown = slimpro_mbox_shutdown,
-- 
2.7.4