v6.9.0
make yacc usage POSIX compatible
ss: add checks for bc filter support
arpd: create /var/lib/arpd on first use
ifstat: don't set errno if strdup fails
lnstat: Fix deref of null in print_json() function
lnstat: use same version as iproute2
misc: use SPDX
iproute2: move generic_proc_open into lib
Merge branch 'main' of git://git.kernel.org/pub/scm/network/iproute2/iproute2-next
ssfilter: fix clang warning about conversion