diff options
| author |   Johannes Berg <johannes.berg@intel.com> | 2016-10-24 14:40:05 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-10-27 16:16:09 -0400 |
| commit | 56989f6d8568c21257dcec0f5e644d5570ba3281 (patch) | |
| tree | 60a6b44865e68e25dbc8bcc38d0000e12106f2d8 /net/ieee802154 | |
| parent | genetlink: use idr to track families (diff) | |
| download | linux-dev-56989f6d8568c21257dcec0f5e644d5570ba3281.tar.xz linux-dev-56989f6d8568c21257dcec0f5e644d5570ba3281.zip | |
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/ieee802154')
| -rw-r--r-- | net/ieee802154/netlink.c | 2 | ||||
| -rw-r--r-- | net/ieee802154/nl802154.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c index 08e62470bac2..6bde9e5a5503 100644 --- a/net/ieee802154/netlink.c +++ b/net/ieee802154/netlink.c @@ -131,7 +131,7 @@ static const struct genl_multicast_group ieee802154_mcgrps[] = { [IEEE802154_BEACON_MCGRP] = { .name = IEEE802154_MCAST_BEACON_NAME, }, }; -struct genl_family nl802154_family = { +struct genl_family nl802154_family __ro_after_init = { .hdrsize = 0, .name = IEEE802154_NL_NAME, .version = 1, diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index f7e75578aedd..fc60cd061f39 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -2462,7 +2462,7 @@ static const struct genl_ops nl802154_ops[] = { #endif /* CONFIG_IEEE802154_NL802154_EXPERIMENTAL */ }; -static struct genl_family nl802154_fam = { +static struct genl_family nl802154_fam __ro_after_init = { .name = NL802154_GENL_NAME, /* have users key off the name instead */ .hdrsize = 0, /* no private header */ .version = 1, /* no particular meaning now */ @@ -2478,7 +2478,7 @@ static struct genl_family nl802154_fam = { }; /* initialisation/exit functions */ -int nl802154_init(void) +int __init nl802154_init(void) { return genl_register_family(&nl802154_fam); } |