I noticed that OVS CI [1] patches the dpdk sources to force some inlining parameters and get kni and igb_uio to build fine.
Looking at it in dpdk, meson support dropped this. In the makefiles, I can't find a reason in the git history (we go back to 1.3.0rX version). [dmarchan@dmarchan dpdk]$ git grep max-inline-insns-single kernel/linux/igb_uio/Makefile:MODULE_CFLAGS += -I$(SRCDIR) --param max-inline-insns-single=100 kernel/linux/kni/Makefile:MODULE_CFLAGS += -I$(SRCDIR) --param max-inline-insns-single=50 [dmarchan@dmarchan dpdk]$ git blame origin/master -- kernel/linux/igb_uio/Makefile |grep max-inline-insns-single 13dc56a6 lib/librte_eal/linuxapp/igb_uio/Makefile (Intel 2012-12-20 00:00:00 +0100 15) MODULE_CFLAGS += -I$(SRCDIR) --param max-inline-insns-single=100 [dmarchan@dmarchan dpdk]$ git blame origin/master -- kernel/linux/kni/Makefile |grep max-inline-insns-single 3fc5ca2f lib/librte_eal/linuxapp/kni/Makefile (Intel 2012-12-20 00:00:00 +0100 14) MODULE_CFLAGS += -I$(SRCDIR) --param max-inline-insns-single=50 Is there a valid reason to keep this? 1: https://github.com/openvswitch/ovs/blob/master/.travis/linux-build.sh#L81 -- David Marchand
