Re: [PATCH bpf-next v6 07/23] bpf: prepare for more bpf syscall to be used from kernel and user space.

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To: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>, Jiri Kosina <jikos@xxxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Martin KaFai Lau <kafai@xxxxxx>, Song Liu <songliubraving@xxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, Dave Marchevsky <davemarchevsky@xxxxxx>, Joe Stringer <joe@xxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>
Subject: Re: [PATCH bpf-next v6 07/23] bpf: prepare for more bpf syscall to be used from kernel and user space.
From: Yonghong Song <yhs@xxxxxx>
Date: Fri, 15 Jul 2022 21:37:56 -0700
Cc: Tero Kristo <tero.kristo@xxxxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-input@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx
In-reply-to: <20220712145850.599666-8-benjamin.tissoires@redhat.com>
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.11.0



On 7/12/22 7:58 AM, Benjamin Tissoires wrote:

Add BPF_MAP_GET_FD_BY_ID and BPF_MAP_DELETE_PROG.

Only BPF_MAP_GET_FD_BY_ID needs to be amended to be able
to access the bpf pointer either from the userspace or the kernel.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>


Acked-by: Yonghong Song <yhs@xxxxxx>

References:
- [PATCH bpf-next v6 00/23] Introduce eBPF support for HID devices
  - From: Benjamin Tissoires
- [PATCH bpf-next v6 07/23] bpf: prepare for more bpf syscall to be used from kernel and user space.
  - From: Benjamin Tissoires

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