Daniel Borkmann 9beb8bedb0 bpf: make error reporting in bpf_warn_invalid_xdp_action more clear ... Differ between illegal XDP action code and just driver unsupported one to provide better feedback when we throw a one-time warning here. Reason is that with 814abfabef ("xdp: add bpf_redirect helper function") not all drivers support the new XDP return code yet and thus they will fall into their 'default' case when checking for return codes after program return, which then triggers a bpf_warn_invalid_xdp_action() stating that the return code is illegal, but from XDP perspective it's not. I decided not to place something like a XDP_ACT_MAX define into uapi i) given we don't have this either for all other program types, ii) future action codes could have further encoding there, which would render such define unsuitable and we wouldn't be able to rip it out again, and iii) we rarely add new action codes. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-09-08 21:13:09 -07:00
..
asm-generic	sock: add SOCK_ZEROCOPY sockopt	2017-08-03 21:37:29 -07:00
drm	Merge branch 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux into drm-next	2017-08-29 10:38:14 +10:00
linux	bpf: make error reporting in bpf_warn_invalid_xdp_action more clear	2017-09-08 21:13:09 -07:00
misc	uapi: export all headers under uapi directories	2017-05-11 00:21:54 +09:00
mtd	uapi: export all headers under uapi directories	2017-05-11 00:21:54 +09:00
rdma	IB/core: Add completion queue (cq) object actions	2017-08-31 08:35:13 -04:00
scsi	scsi: cxlflash: Support AFU debug	2017-06-26 15:01:12 -04:00
sound	ASoC: Updates for v4.13	2017-07-03 19:51:42 +02:00
video	uapi: export all headers under uapi directories	2017-05-11 00:21:54 +09:00
xen	uapi: export all headers under uapi directories	2017-05-11 00:21:54 +09:00