netdev - Re: [PATCH RFC v3 bpf-next 2/4] bpf: Add bpf_copy_from

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Message-ID: <CAADnVQ+ubYj8yA1_cO3aw-trShTHBRMJxSvZrLW75i8fM=mpvQ@mail.gmail.com>
Date:   Mon, 29 Jun 2020 17:28:20 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Daniel Borkmann <daniel@...earbox.net>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>,
        Kernel Team <kernel-team@...com>
Subject: Re: [PATCH RFC v3 bpf-next 2/4] bpf: Add bpf_copy_from_user() helper.

On Thu, Jun 18, 2020 at 3:33 PM Andrii Nakryiko
<andrii.nakryiko@...il.com> wrote:
> > + *
> > + * int bpf_copy_from_user(void *dst, u32 size, const void *user_ptr)
>
> Can we also add bpf_copy_str_from_user (or bpf_copy_from_user_str,
> whichever makes more sense) as well?

Those would have to wait. I think strings need better long term design.
That would be separate patches.