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From:   Benjamin Tissoires <bentiss@kernel.org>
To:     Jiri Kosina <jikos@kernel.org>,
        Benjamin Tissoires <benjamin.tissoires@redhat.com>,
        Arnd Bergmann <arnd@kernel.org>
Cc:     Arnd Bergmann <arnd@arndb.de>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Wei Liu <wei.liu@kernel.org>, Dexuan Cui <decui@microsoft.com>,
        Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com>,
        Michael Kelley <mikelley@microsoft.com>,
        Dawei Li <set_pte_at@outlook.com>,
        Yang Yingliang <yangyingliang@huawei.com>,
        =?utf-8?q?Thomas_Wei=C3=9Fschuh?= <linux@weissschuh.net>,
        linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org,
        linux-kernel@vger.kernel.org
In-Reply-To: <20230705140242.844167-1-arnd@kernel.org>
References: <20230705140242.844167-1-arnd@kernel.org>
Subject: Re: [PATCH] HID: hyperv: avoid struct memcpy overrun warning
Message-Id: <168897796090.315593.7282926562695249988.b4-ty@kernel.org>
Date:   Mon, 10 Jul 2023 10:32:40 +0200
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On Wed, 05 Jul 2023 16:02:24 +0200, Arnd Bergmann wrote:
> A previous patch addressed the fortified memcpy warning for most
> builds, but I still see this one with gcc-9:
> 
> In file included from include/linux/string.h:254,
>                  from drivers/hid/hid-hyperv.c:8:
> In function 'fortify_memcpy_chk',
>     inlined from 'mousevsc_on_receive' at drivers/hid/hid-hyperv.c:272:3:
> include/linux/fortify-string.h:583:4: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
>   583 |    __write_overflow_field(p_size_field, size);
>       |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> [...]

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git (for-6.5/upstream-fixes), thanks!

[1/1] HID: hyperv: avoid struct memcpy overrun warning
      https://git.kernel.org/hid/hid/c/5f151364b1da

Cheers,
-- 
Benjamin Tissoires <bentiss@kernel.org>