On Sat, May 14, 2022 at 06:49:35PM +0200, Phil Sutter wrote: > Hi Pablo, > > On Mon, May 02, 2022 at 01:07:44PM +0200, Pablo Neira Ayuso wrote: > > Starting Linux kernel 5.18-rc, operations on registers that already > > contain the expected data are turned into noop. > > > > Track operation on registers to use the same register through > > nftnl_reg_get(). This patch introduces an LRU eviction strategy when all > > the registers are in used. > > > > nftnl_reg_get_scratch() is used to allocate a register as scratchpad > > area: no tracking is performed in this case, although register eviction > > might occur. > > > > Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> > > --- > > include/expr_ops.h | 6 + > > include/internal.h | 1 + > > include/libnftnl/Makefile.am | 1 + > > include/regs.h | 32 ++++++ > > src/Makefile.am | 1 + > > src/expr/meta.c | 44 +++++++ > > src/expr/payload.c | 31 +++++ > > src/libnftnl.map | 7 ++ > > src/regs.c | 216 +++++++++++++++++++++++++++++++++++ > > 9 files changed, 339 insertions(+) > > create mode 100644 include/regs.h > > create mode 100644 src/regs.c > > Did you forget to add include/libnftnl/regs.h to this patch? It is > referenced from src/regs.c and build fails. Yes, this is fixed here: http://git.netfilter.org/libnftnl/commit/?id=e549f5b3239c19f78af2f7c7a582fe5616403ca8