Date:   Tue, 7 Dec 2021 21:27:47 -0800
From:   Kees Cook <keescook@chromium.org>
To:     Xiu Jianfeng <xiujianfeng@huawei.com>
Cc:     akpm@linux-foundation.org, laniel_francis@privacyrequired.com,
        andriy.shevchenko@linux.intel.com, adobriyan@gmail.com,
        linux@roeck-us.net, andreyknvl@gmail.com, dja@axtens.net,
        ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
        kafai@fb.com, songliubraving@fb.com, yhs@fb.com,
        john.fastabend@gmail.com, kpsingh@kernel.org,
        linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        bpf@vger.kernel.org
Subject: Re: [PATCH -next 0/2] Introduce memset_range() helper for wiping
 members
Message-ID: <202112072125.AC79323201@keescook>
References: <20211208030451.219751-1-xiujianfeng@huawei.com>
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On Wed, Dec 08, 2021 at 11:04:49AM +0800, Xiu Jianfeng wrote:
> Xiu Jianfeng (2):
>   string.h: Introduce memset_range() for wiping members

For doing a memset range, the preferred method is to use
a struct_group in the structure itself. This makes the range
self-documenting, and allows the compile to validate the exact size,
makes it addressable, etc. The other memset helpers are for "everything
to the end", which doesn't usually benefit from the struct_group style
of range declaration.

>   bpf: use memset_range helper in __mark_reg_known

I never saw this patch arrive on the list?

-- 
Kees Cook