From 56989f6d8568c21257dcec0f5e644d5570ba3281 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 24 Oct 2016 14:40:05 +0200 Subject: 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 Signed-off-by: David S. Miller --- net/tipc/netlink.c | 4 ++-- net/tipc/netlink_compat.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'net/tipc') diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c index 74a405bf107b..26ca8dd64ded 100644 --- a/net/tipc/netlink.c +++ b/net/tipc/netlink.c @@ -249,7 +249,7 @@ static const struct genl_ops tipc_genl_v2_ops[] = { #endif }; -struct genl_family tipc_genl_family = { +struct genl_family tipc_genl_family __ro_after_init = { .name = TIPC_GENL_V2_NAME, .version = TIPC_GENL_V2_VERSION, .hdrsize = 0, @@ -271,7 +271,7 @@ int tipc_nlmsg_parse(const struct nlmsghdr *nlh, struct nlattr ***attr) return nlmsg_parse(nlh, GENL_HDRLEN, *attr, maxattr, tipc_nl_policy); } -int tipc_netlink_start(void) +int __init tipc_netlink_start(void) { int res; diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c index 07b19931e458..e1ae8a8a2b8e 100644 --- a/net/tipc/netlink_compat.c +++ b/net/tipc/netlink_compat.c @@ -1222,7 +1222,7 @@ static struct genl_ops tipc_genl_compat_ops[] = { }, }; -static struct genl_family tipc_genl_compat_family = { +static struct genl_family tipc_genl_compat_family __ro_after_init = { .name = TIPC_GENL_NAME, .version = TIPC_GENL_VERSION, .hdrsize = TIPC_GENL_HDRLEN, @@ -1233,7 +1233,7 @@ static struct genl_family tipc_genl_compat_family = { .n_ops = ARRAY_SIZE(tipc_genl_compat_ops), }; -int tipc_netlink_compat_start(void) +int __init tipc_netlink_compat_start(void) { int res; -- cgit v1.2.3