linux-kernel - Re: [PATCH bpf v7 1/2] lib/strncpy_from_user.c: Don't overcopy bytes after NUL terminator

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Message-ID: <CAADnVQ+0=59xkFcpQMdqmZ7CcsTiXx2PDp1T6Hi2hnhj+otnhA@mail.gmail.com>
Date:   Tue, 17 Nov 2020 12:14:07 -0800
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Daniel Xu <dxu@...uu.xyz>
Cc:     bpf <bpf@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Song Liu <songliubraving@...com>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Kernel Team <kernel-team@...com>
Subject: Re: [PATCH bpf v7 1/2] lib/strncpy_from_user.c: Don't overcopy bytes
 after NUL terminator

On Tue, Nov 17, 2020 at 12:05 PM Daniel Xu <dxu@...uu.xyz> wrote:
>
> This commit uses the proper word-at-a-time APIs to avoid overcopying.

that part of the commit log is no longer correct. I can fix it up while applying
if Linus doesn't have an issue with the rest.