From: Daniel Borkmann
Date: Mon, 13 Jul 2015 20:49:32 +0200
> ARG1 = BPF_R1 as it stands, evaluates to regs[BPF_REG_1] = regs[BPF_REG_1]
> and thus has no effect. Add a comment instead, explaining what happens and
> why it's okay to just remove it. Since from user space side, a tail call is
> inv
On 7/13/15 11:49 AM, Daniel Borkmann wrote:
ARG1 = BPF_R1 as it stands, evaluates to regs[BPF_REG_1] = regs[BPF_REG_1]
and thus has no effect. Add a comment instead, explaining what happens and
why it's okay to just remove it. Since from user space side, a tail call is
invoked as a pseudo helper
ARG1 = BPF_R1 as it stands, evaluates to regs[BPF_REG_1] = regs[BPF_REG_1]
and thus has no effect. Add a comment instead, explaining what happens and
why it's okay to just remove it. Since from user space side, a tail call is
invoked as a pseudo helper function via bpf_tail_call_proto, the verifier
