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authorJohannes Berg <johannes.berg@intel.com>2016-10-24 14:40:05 +0200
committerDavid S. Miller <davem@davemloft.net>2016-10-27 16:16:09 -0400
commit56989f6d8568c21257dcec0f5e644d5570ba3281 (patch)
tree60a6b44865e68e25dbc8bcc38d0000e12106f2d8 /net/wireless/nl80211.c
parent2ae0f17df1cd52aafd1ab0415ea1f1dd56dc0e2a (diff)
downloadlinux-56989f6d8568c21257dcec0f5e644d5570ba3281.tar.bz2
genetlink: mark families as __ro_after_init
Now genl_register_family() is the only thing (other than the users themselves, perhaps, but I didn't find any doing that) writing to the family struct. In all families that I found, genl_register_family() is only called from __init functions (some indirectly, in which case I've add __init annotations to clarifly things), so all can actually be marked __ro_after_init. This protects the data structure from accidental corruption. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r--net/wireless/nl80211.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 8e5ca3c47593..271707dacfea 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -12586,7 +12586,7 @@ static const struct genl_ops nl80211_ops[] = {
},
};
-static struct genl_family nl80211_fam = {
+static struct genl_family nl80211_fam __ro_after_init = {
.name = NL80211_GENL_NAME, /* have users key off the name instead */
.hdrsize = 0, /* no private header */
.version = 1, /* no particular meaning now */
@@ -14563,7 +14563,7 @@ void nl80211_send_ap_stopped(struct wireless_dev *wdev)
/* initialisation/exit functions */
-int nl80211_init(void)
+int __init nl80211_init(void)
{
int err;