Markos Chandras b4fe0ec86d MIPS: bpf: Fix PKT_TYPE case for big-endian cores ... The skb->pkt_type field is defined as follows: u8 pkt_type:3, fclone:2, ipvs_property:1, peeked:1, nf_trace:1 resulting to the following layout in big-endian systems [pkt_type][fclone][ipvs_propery][peeked][nf_trace] ^ ^ | | LSB MSB As a result, the existing code did not work because it was trying to match pkt_type == 7 whereas in reality it is 7<<5 on big-endian systems. This has been fixed in the interpreter in 0dcceabb0c "net: filter: fix SKF_AD_PKTTYPE extension on big-endian" The fix is to look for 7<<5 on big-endian systems for the pkt_type field, and shift by 5 so the packet type will be at the lower 3 bits of the A register. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: David S. Miller <davem@davemloft.net> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: netdev@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/7132/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2014-06-26 10:48:22 +01:00
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bpf_jit.c	MIPS: bpf: Fix PKT_TYPE case for big-endian cores	2014-06-26 10:48:22 +01:00
bpf_jit.h
Makefile