tree 7e1096e0050aab2c73c3e348a0b8e09227b55610
parent 4f67e8976f7bbcaec6e74ab73085031938315009
author Pablo Neira Ayuso <pablo@netfilter.org> 1550060316 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1556783930 +0200

netfilter: nft_compat: use .release_ops and remove list of extension

[ Upstream commit b8e204006340b7aaf32bd2b9806c692f6e0cb38a ]

Add .release_ops, that is called in case of error at a later stage in
the expression initialization path, ie. .select_ops() has been already
set up operations and that needs to be undone. This allows us to unwind
.select_ops from the error path, ie. release the dynamic operations for
this extension.

Moreover, allocate one single operation instead of recycling them, this
comes at the cost of consuming a bit more memory per rule, but it
simplifies the infrastructure.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>