From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: Hao Luo <haoluo@google.com>
Cc: Andrii Nakryiko <andriin@fb.com>, bpf <bpf@vger.kernel.org>,
Networking <netdev@vger.kernel.org>,
Alexei Starovoitov <ast@fb.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Kernel Team <kernel-team@fb.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Song Liu <songliubraving@fb.com>,
Quentin Monnet <quentin@isovalent.com>
Subject: Re: [RFC PATCH bpf-next 1/8] libbpf: generalize libbpf externs support
Date: Mon, 15 Jun 2020 11:55:24 -0700 [thread overview]
Message-ID: <CAEf4Bzbmw8VE9JcpgPNztS0W=MQBXC7Y9ewzUGF9-BgU+uO_zQ@mail.gmail.com> (raw)
In-Reply-To: <CA+khW7hAYVdoQX5-j0z1iGEVZeww4BBu4NXzy5eS5OwDRYqe2w@mail.gmail.com>
On Mon, Jun 15, 2020 at 9:44 AM Hao Luo <haoluo@google.com> wrote:
>
> Andrii,
>
> Thanks for this patch, it looks very nice! Decoupling kconfig from generic externs is much needed.
>
> On Fri, Jun 12, 2020 at 3:34 PM Andrii Nakryiko <andriin@fb.com> wrote:
>>
>> Switch existing Kconfig externs to be just one of few possible kinds of more
>> generic externs. This refactoring is in preparation for ksymbol extern
>> support, added in the follow up patch. There are no functional changes
>> intended.
>>
>> Signed-off-by: Andrii Nakryiko <andriin@fb.com>
>> ---
>> tools/lib/bpf/libbpf.c | 332 ++++++++++++++++++++++++-----------------
>> 1 file changed, 199 insertions(+), 133 deletions(-)
>>
[...]
>> @@ -1443,12 +1454,12 @@ static int set_ext_value_tri(struct extern_desc *ext, void *ext_val,
>> else /* value == 'n' */
>> *(enum libbpf_tristate *)ext_val = TRI_NO;
>> break;
>> - case EXT_CHAR:
>> + case KCFG_CHAR:
>> *(char *)ext_val = value;
>> break;
>> - case EXT_UNKNOWN:
>> - case EXT_INT:
>> - case EXT_CHAR_ARR:
>> + case KCFG_UNKNOWN:
>> + case KCFG_INT:
>> + case KCFG_CHAR_ARR:
>> default:
>> pr_warn("extern %s=%c should be bool, tristate, or char\n",
>> ext->name, value);
>
>
> Very minor: pr_warn("kconfig extern ..."); I noticed you have one similar message changed below.
>
yeah, good catch, I'll update
>>
>> @@ -1458,12 +1469,12 @@ static int set_ext_value_tri(struct extern_desc *ext, void *ext_val,
>> return 0;
>> }
>>
for the future, please cut irrelevant parts of the patch, makes it
easier to see where your replies are
[...]
next prev parent reply other threads:[~2020-06-15 18:55 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-12 22:31 [RFC PATCH bpf-next 0/8] libbpf ksym support and bpftool show PIDs Andrii Nakryiko
2020-06-12 22:31 ` [RFC PATCH bpf-next 1/8] libbpf: generalize libbpf externs support Andrii Nakryiko
[not found] ` <CA+khW7hAYVdoQX5-j0z1iGEVZeww4BBu4NXzy5eS5OwDRYqe2w@mail.gmail.com>
2020-06-15 18:55 ` Andrii Nakryiko [this message]
2020-06-12 22:31 ` [RFC PATCH bpf-next 2/8] libbpf: add support for extracting kernel symbol addresses Andrii Nakryiko
[not found] ` <CA+khW7hFZzp_K_xydSFw0O3LYB22_fC=Z4wG7i9Si+phGHn4cQ@mail.gmail.com>
2020-06-15 19:08 ` Andrii Nakryiko
2020-06-16 8:05 ` Hao Luo
2020-06-17 1:24 ` Hao Luo
2020-06-17 1:36 ` Andrii Nakryiko
2020-06-18 7:53 ` Hao Luo
2020-06-12 22:31 ` [RFC PATCH bpf-next 3/8] selftests/bpf: add __ksym extern selftest Andrii Nakryiko
[not found] ` <CA+khW7jxdS1KRpk2syVGjDqbyn3wAd3Eh_LEMAEhkPUehuXMwg@mail.gmail.com>
2020-06-15 19:11 ` Andrii Nakryiko
2020-06-12 22:31 ` [RFC PATCH bpf-next 4/8] tools/bpftool: move map/prog parsing logic into common Andrii Nakryiko
2020-06-12 22:31 ` [RFC PATCH bpf-next 5/8] tools/bpftool: minimize bootstrap bpftool Andrii Nakryiko
2020-06-12 22:31 ` [RFC PATCH bpf-next 6/8] tools/bpftool: generalize BPF skeleton support and generate vmlinux.h Andrii Nakryiko
2020-06-12 22:31 ` [RFC PATCH bpf-next 7/8] libbpf: wrap source argument of BPF_CORE_READ macro in parentheses Andrii Nakryiko
2020-06-12 22:31 ` [RFC PATCH bpf-next 8/8] tools/bpftool: show PIDs with FDs open against BPF map/prog/link/btf Andrii Nakryiko
2020-06-13 3:45 ` Alexei Starovoitov
2020-06-13 5:57 ` Andrii Nakryiko
2020-06-13 22:14 ` Arnaldo Carvalho de Melo
2020-06-15 9:04 ` Toke Høiland-Jørgensen
2020-06-15 9:30 ` Quentin Monnet
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