From: "Alexei Starovoitov" <alexei.starovoitov@gmail.com>
To: "Kumar Kartikeya Dwivedi" <memxor@gmail.com>, <bpf@vger.kernel.org>
Cc: "Alexei Starovoitov" <ast@kernel.org>,
"Andrii Nakryiko" <andrii@kernel.org>,
"Daniel Borkmann" <daniel@iogearbox.net>,
"Eduard Zingerman" <eddyz87@gmail.com>,
"Emil Tsalapatis" <emil@etsalapatis.com>,
"Ihor Solodrai" <ihor.solodrai@linux.dev>,
"Tejun Heo" <tj@kernel.org>, <kkd@meta.com>,
<kernel-team@meta.com>
Subject: Re: [PATCH bpf-next v3 09/15] selftests/bpf: Test __arena pointer members
Date: Fri, 16 Oct 2026 01:11:36 +0000 [thread overview]
Message-ID: <DM5V2MT14QRH.1HNZAXBA35LX6@gmail.com> (raw)
In-Reply-To: <20261015234125.3152346-10-memxor@gmail.com>
On Thu Oct 15, 2026 at 11:41 PM UTC, Kumar Kartikeya Dwivedi wrote:
> +struct bpf_testmod_arena_member_args {
> + __u64 __attribute__((btf_type_tag("arena"))) *ptr;
> + __u64 __attribute__((btf_type_tag("arena"))) __attribute__((btf_type_tag("nullable"))) *null_ptr;
> + struct {
> + __u64 __attribute__((btf_type_tag("arena"))) *ptr;
> + } nested;
> +} __attribute__((preserve_access_index));
why __attribute__-s are open coded?
next prev parent reply other threads:[~2026-10-16 1:11 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 23:41 [PATCH bpf-next v3 00/15] Fix some arena paper cuts Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 01/15] bpf: Compute the program digest before resolving the fd_array Kumar Kartikeya Dwivedi
2026-10-16 0:28 ` bot+bpf-ci
2026-10-15 23:41 ` [PATCH bpf-next v3 02/15] selftests/bpf: Bind an exclusive map through a continuous fd_array Kumar Kartikeya Dwivedi
2026-10-15 23:53 ` sashiko-bot
2026-10-16 0:00 ` Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 03/15] libbpf: Keep the fd_array fill index out of bpf_program__clone() Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 04/15] selftests/bpf: Clone a program that calls a module kfunc Kumar Kartikeya Dwivedi
2026-10-16 0:12 ` bot+bpf-ci
2026-10-15 23:41 ` [PATCH bpf-next v3 05/15] compiler_types: Add __arena and __nullable BTF type tag qualifiers Kumar Kartikeya Dwivedi
2026-10-16 1:08 ` Alexei Starovoitov
2026-10-16 1:15 ` Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 06/15] bpf: Recognize __nullable on pointer members of kernel structs Kumar Kartikeya Dwivedi
2026-10-15 23:54 ` sashiko-bot
2026-10-16 0:00 ` Kumar Kartikeya Dwivedi
2026-10-16 1:09 ` Alexei Starovoitov
2026-10-16 1:24 ` Kumar Kartikeya Dwivedi
2026-10-16 1:31 ` Alexei Starovoitov
2026-10-16 1:39 ` Kumar Kartikeya Dwivedi
2026-10-16 1:53 ` Alexei Starovoitov
2026-10-16 2:04 ` Kumar Kartikeya Dwivedi
2026-10-16 2:20 ` Alexei Starovoitov
2026-10-15 23:41 ` [PATCH bpf-next v3 07/15] bpf: Turn loads of __arena pointer members into arena pointers Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 08/15] selftests/bpf: Test __nullable pointer members Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 09/15] selftests/bpf: Test __arena " Kumar Kartikeya Dwivedi
2026-10-16 1:11 ` Alexei Starovoitov [this message]
2026-10-16 1:39 ` Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 10/15] libbpf: Bind the arena of an object to every program in it Kumar Kartikeya Dwivedi
2026-10-16 0:28 ` bot+bpf-ci
2026-10-15 23:41 ` [PATCH bpf-next v3 11/15] selftests/bpf: Test arena binding by libbpf Kumar Kartikeya Dwivedi
2026-10-16 0:28 ` bot+bpf-ci
2026-10-15 23:41 ` [PATCH bpf-next v3 12/15] bpf: Set up the arena base only in functions that use it Kumar Kartikeya Dwivedi
2026-10-16 1:13 ` Alexei Starovoitov
2026-10-15 23:41 ` [PATCH bpf-next v3 13/15] libbpf: Render the arena type tag with its address space Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 14/15] selftests/bpf: Test the address space rendering of the arena type tag Kumar Kartikeya Dwivedi
2026-10-15 23:41 ` [PATCH bpf-next v3 15/15] selftests/bpf: Test an arena kfunc argument passed from a subprogram Kumar Kartikeya Dwivedi
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