[PATCH] wifi: cfg80211: Constify struct cfg80211_ops

[Christophe JAILLET]

'struct cfg80211_ops' is not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increases overall security, especially when the structure holds some
function pointers.

On a x86_64, with allmodconfig, as an example:
Before:
======
   text	   data	    bss	    dec	    hex	filename
 143726	  34579	    192	 178497	  2b941	drivers/net/wireless/ath/ath6kl/cfg80211.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
 144814	  33491	    192	 178497	  2b941	drivers/net/wireless/ath/ath6kl/cfg80211.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested only.
---
 drivers/net/wireless/ath/ath6kl/cfg80211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
index cc0f2c45fc3a..ecde91159b54 100644
--- a/drivers/net/wireless/ath/ath6kl/cfg80211.c
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -3437,7 +3437,7 @@ ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
 	},
 };
 
-static struct cfg80211_ops ath6kl_cfg80211_ops = {
+static const struct cfg80211_ops ath6kl_cfg80211_ops = {
 	.add_virtual_intf = ath6kl_cfg80211_add_iface,
 	.del_virtual_intf = ath6kl_cfg80211_del_iface,
 	.change_virtual_intf = ath6kl_cfg80211_change_iface,
-- 
2.55.0