Michael Holzheu 6edf0aa4f8 s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop ... In case of usage of skb_vlan_push/pop, in the prologue we store the SKB pointer on the stack and restore it after BPF_JMP_CALL to skb_vlan_push/pop. Unfortunately currently there are two bugs in the code: 1) The wrong stack slot (offset 170 instead of 176) is used 2) The wrong register (W1 instead of B1) is saved So fix this and use correct stack slot and register. Fixes: 9db7f2b818 ("s390/bpf: recache skb->data/hlen for skb_vlan_push/pop") Cc: stable@vger.kernel.org # 4.3+ Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2016-05-19 09:14:27 +02:00
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Makefile	s390/bpf,jit: BPF Just In Time compiler for s390	2012-09-26 15:44:49 +02:00
bpf_jit.S	s390/bpf: Add s390x eBPF JIT compiler backend	2015-04-15 12:23:49 +02:00
bpf_jit.h	s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop	2016-05-19 09:14:27 +02:00
bpf_jit_comp.c	s390/bpf: fix recache skb->data/hlen for skb_vlan_push/pop	2016-05-19 09:14:27 +02:00