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From: Leon Hwang <leon.hwang@linux.dev>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: bpf@vger.kernel.org, Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Martin KaFai Lau <martin.lau@linux.dev>,
	Eduard Zingerman <eddyz87@gmail.com>,
	Kumar Kartikeya Dwivedi <memxor@gmail.com>,
	Song Liu <song@kernel.org>,
	Yonghong Song <yonghong.song@linux.dev>,
	Jiri Olsa <jolsa@kernel.org>,
	John Fastabend <john.fastabend@gmail.com>,
	Quentin Monnet <qmo@kernel.org>, Shuah Khan <shuah@kernel.org>,
	linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
	kernel-patches-bot@fb.com
Subject: Re: [PATCH bpf-next v8 4/9] libbpf: Add support for global percpu data
Date: Thu, 2 Jul 2026 14:16:08 +0800	[thread overview]
Message-ID: <9b3f954f-fe5f-4aef-b290-30c4f92d4c11@linux.dev> (raw)
In-Reply-To: <CAEf4BzYVdP23ASHtAAzpuGH2Agx+aXRRxTsy6MZx0OgE+OffjA@mail.gmail.com>

On 2/7/26 03:32, Andrii Nakryiko wrote:
> On Mon, Jun 29, 2026 at 8:25 AM Leon Hwang <leon.hwang@linux.dev> wrote:
[...]
>> @@ -1975,7 +1981,7 @@ bpf_object__init_internal_map(struct bpf_object *obj, enum libbpf_map_type type,
>>         map->sec_idx = sec_idx;
>>         map->sec_offset = 0;
>>         map->real_name = strdup(real_name);
>> -       map->name = internal_map_name(obj, real_name);
>> +       map->name = is_percpu ? strdup(real_name) : internal_map_name(obj, real_name);
> 
> nit: I'd probably pass type into internal_map_name() and let it handle
> all this in one place, consider that for follow up
> 
hmm, it is a true issue that 'map->name' must have the tail '\0'. And
strdup(real_name) does not guarantee the tail '\0'.

Will pass type into internal_map_name() instead.

Thanks,
Leon


  reply	other threads:[~2026-07-02  6:16 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-29 15:23 [PATCH bpf-next v8 0/9] bpf: Introduce global percpu data Leon Hwang
2026-06-29 15:23 ` [PATCH bpf-next v8 1/9] bpf: Drop duplicate blank lines in verifier Leon Hwang
2026-06-29 15:23 ` [PATCH bpf-next v8 2/9] bpf: Introduce global percpu data Leon Hwang
2026-06-29 15:50   ` sashiko-bot
2026-06-30  5:50     ` Leon Hwang
2026-07-01 19:31   ` Andrii Nakryiko
2026-07-02  6:15     ` Leon Hwang
2026-06-29 15:24 ` [PATCH bpf-next v8 3/9] libbpf: Probe percpu data feature Leon Hwang
2026-06-29 15:24 ` [PATCH bpf-next v8 4/9] libbpf: Add support for global percpu data Leon Hwang
2026-06-29 15:40   ` sashiko-bot
2026-06-30  5:54     ` Leon Hwang
2026-07-01 19:31       ` Andrii Nakryiko
2026-07-02  6:23         ` Leon Hwang
2026-07-01 19:32   ` Andrii Nakryiko
2026-07-02  6:16     ` Leon Hwang [this message]
2026-06-29 15:24 ` [PATCH bpf-next v8 5/9] bpftool: Generate skeleton " Leon Hwang
2026-07-01 16:49   ` Quentin Monnet
2026-07-01 19:32     ` Andrii Nakryiko
2026-07-02  6:24       ` Leon Hwang
2026-07-02 10:14         ` Quentin Monnet
2026-07-02 14:08           ` Leon Hwang
2026-06-29 15:24 ` [PATCH bpf-next v8 6/9] selftests/bpf: Add tests to verify " Leon Hwang
2026-06-29 15:24 ` [PATCH bpf-next v8 7/9] selftests/bpf: Test direct reading/writing read-only percpu_array map Leon Hwang
2026-06-29 15:24 ` [PATCH bpf-next v8 8/9] selftests/bpf: Test verifier log for global percpu data Leon Hwang
2026-06-29 15:24 ` [PATCH bpf-next v8 9/9] selftests/bpf: Verify bpf_iter " Leon Hwang

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