linux-kernel - Re: [PATCH v6 04/12] drivers/infiniband: make setup_ctxt always get a nul terminated task comm

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Date:   Mon, 25 Oct 2021 14:20:36 -0400
From:   Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>
To:     Yafang Shao <laoar.shao@...il.com>, akpm@...ux-foundation.org,
        keescook@...omium.org, rostedt@...dmis.org,
        mathieu.desnoyers@...icios.com, arnaldo.melo@...il.com,
        pmladek@...e.com, peterz@...radead.org, viro@...iv.linux.org.uk,
        valentin.schneider@....com, qiang.zhang@...driver.com,
        robdclark@...omium.org, christian@...uner.io,
        dietmar.eggemann@....com, mingo@...hat.com, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, davem@...emloft.net, kuba@...nel.org,
        ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        kafai@...com, songliubraving@...com, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org,
        mike.marciniszyn@...nelisnetworks.com, dledford@...hat.com,
        jgg@...pe.ca
Cc:     linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-perf-users@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, oliver.sang@...el.com, lkp@...el.com,
        Andrii Nakryiko <andrii.nakryiko@...il.com>
Subject: Re: [PATCH v6 04/12] drivers/infiniband: make setup_ctxt always get a
 nul terminated task comm



On 10/25/21 4:33 AM, Yafang Shao wrote:
> Use strscpy_pad() instead of strlcpy() to make the comm always nul
> terminated. As the comment above the hard-coded 16, we can replace it
> with TASK_COMM_LEN, then it will adopt to the comm size change.
> 
> Signed-off-by: Yafang Shao <laoar.shao@...il.com>
> Cc: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
> Cc: Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
> Cc: Andrii Nakryiko <andrii.nakryiko@...il.com>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> Cc: Al Viro <viro@...iv.linux.org.uk>
> Cc: Kees Cook <keescook@...omium.org>
> Cc: Petr Mladek <pmladek@...e.com>
> ---
>  drivers/infiniband/hw/qib/qib.h          | 2 +-
>  drivers/infiniband/hw/qib/qib_file_ops.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)

This qib patch looks fine.

Acked-by: Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>