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genetlink: mark families as __ro_after_init

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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Johannes Berg 2016-10-24 14:40:05 +02:00 • committed by David S. Miller
commit 56989f6d85
35 changed files with 51 additions and 51 deletions
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2
net/netlink/genetlink.c
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@ -936,7 +936,7 @@ static const struct genl_multicast_group genl_ctrl_groups[] = {
{ .name = "notify", },
};
static struct genl_family genl_ctrl = {
static struct genl_family genl_ctrl __ro_after_init = {
.module = THIS_MODULE,
.ops = genl_ctrl_ops,
.n_ops = ARRAY_SIZE(genl_ctrl_ops),