netdev - Re: [PATCH v5 bpf-next 3/5] bpf: Add bpf_copy_from

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Message-ID: <20200630114129.GA420871@google.com>
Date:   Tue, 30 Jun 2020 13:41:29 +0200
From:   KP Singh <kpsingh@...omium.org>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     davem@...emloft.net, daniel@...earbox.net, paulmck@...nel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH v5 bpf-next 3/5] bpf: Add bpf_copy_from_user() helper.

On 29-Jun 21:33, Alexei Starovoitov wrote:
> From: Alexei Starovoitov <ast@...nel.org>
> 
> Sleepable BPF programs can now use copy_from_user() to access user memory.
> 
> Signed-off-by: Alexei Starovoitov <ast@...nel.org>
> Acked-by: Andrii Nakryiko <andriin@...com>

Really looking forward!

Acked-by: KP Singh <kpsingh@...gle.com>

> ---
>  include/linux/bpf.h            |  1 +
>  include/uapi/linux/bpf.h       | 11 ++++++++++-
>  kernel/bpf/helpers.c           | 22 ++++++++++++++++++++++
>  kernel/trace/bpf_trace.c       |  2 ++
>  tools/include/uapi/linux/bpf.h | 11 ++++++++++-
>  5 files changed, 45 insertions(+), 2 deletions(-)
> 

[...]

> +	/* */
>  
>  /* integer value in 'imm' field of BPF_CALL instruction selects which helper
>   * function eBPF program intends to call
> -- 
> 2.23.0
>