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authorAlexei Starovoitov <ast@fb.com>2017-05-30 23:31:27 +0300
committerDavid S. Miller <davem@davemloft.net>2017-06-01 02:29:47 +0300
commit71189fa9b092ef125ee741eccb2f5fa916798afd (patch)
tree6a2f3dd82c3332011d215d85d9b56d38502e8864 /arch/arm64/net
parentd2e0ef493ad953048bdf562b06cc4330b3fd9fb7 (diff)
downloadlinux-71189fa9b092ef125ee741eccb2f5fa916798afd.tar.xz
bpf: free up BPF_JMP | BPF_CALL | BPF_X opcode
free up BPF_JMP | BPF_CALL | BPF_X opcode to be used by actual indirect call by register and use kernel internal opcode to mark call instruction into bpf_tail_call() helper. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm64/net')
-rw-r--r--arch/arm64/net/bpf_jit_comp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/net/bpf_jit_comp.c b/arch/arm64/net/bpf_jit_comp.c
index 71f930501ade..b1d38eeb24f6 100644
--- a/arch/arm64/net/bpf_jit_comp.c
+++ b/arch/arm64/net/bpf_jit_comp.c
@@ -586,7 +586,7 @@ emit_cond_jmp:
break;
}
/* tail call */
- case BPF_JMP | BPF_CALL | BPF_X:
+ case BPF_JMP | BPF_TAIL_CALL:
if (emit_bpf_tail_call(ctx))
return -EFAULT;
break;