linux-kernel - Re: bpf: handling non BPF register names in inline assembly with -target bpf

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Message-ID: <20180411194729.GD12166@redhat.com>
Date:   Wed, 11 Apr 2018 16:47:29 -0300
From:   Arnaldo Carvalho de Melo <acme@...hat.com>
To:     Yonghong Song <yhs@...com>
Cc:     Alexei Starovoitov <ast@...com>,
        Daniel Borkmann <daniel@...earbox.net>,
        David Miller <davem@...emloft.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>, acme@...nel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: bpf: handling non BPF register names in inline assembly with
 -target bpf

Em Wed, Apr 11, 2018 at 12:22:37PM -0700, Yonghong Song escreveu:
> Look at test bpf-script-test-kbuild.c, I think you can drop
> uapi/asm/ptrace.h from include file list. This way, you do not need
> __BPF__ in x86/include/asm/asm.h. At the same time, you can
> remove __BPF__ as well.

That's even better, I'll try that approach, that code was done by
someone else, so I ended up not considering looking if removing a
unnecessary header would fix the issue, I'll check and if that works
I'll revert the patch that introduced that ifndef __BPF__.

- Arnaldo