---- ipset-7.15/configure.ac~ 2021-08-04 08:18:14.000000000 +0200
-+++ ipset-7.15/configure.ac 2022-01-20 22:11:42.308828836 +0100
-@@ -450,7 +450,7 @@
-
- AC_MSG_CHECKING([kernel source for kvfree])
- if test -f $ksourcedir/include/linux/mm.h && \
-- $GREP -q 'kvfree' $ksourcedir/include/linux/mm.h; then
-+ $GREP -q 'kvfree' $ksourcedir/include/linux/mm.h $ksourcedir/include/linux/slab.h; then
- AC_MSG_RESULT(yes)
- AC_SUBST(HAVE_KVFREE, define)
- else
---- ipset-7.15/configure.ac~ 2022-01-20 22:12:29.000000000 +0100
-+++ ipset-7.15/configure.ac 2022-01-20 22:13:17.434329590 +0100
-@@ -839,7 +839,7 @@
-
- AC_MSG_CHECKING([kernel source for kvzalloc() in mm.h])
- if test -f $ksourcedir/include/linux/mm.h && \
-- $GREP -q 'static inline void \*kvzalloc(' $ksourcedir/include/linux/mm.h; then
-+ $GREP -q ' void \*kvzalloc(' $ksourcedir/include/linux/mm.h $ksourcedir/include/linux/slab.h; then
- AC_MSG_RESULT(yes)
- AC_SUBST(HAVE_KVZALLOC, define)
- else