linux-kernel - Re: [PATCH][next] ksmbd: replace one-element arrays with flexible-array members

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Message-ID: <CAKYAXd-evHBWbXbfa4tg9LEGVv6f=y9PBbDaBSySmsN0LuCCMQ@mail.gmail.com>
Date:   Wed, 16 Nov 2022 09:21:24 +0900
From:   Namjae Jeon <linkinjeon@...nel.org>
To:     "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     Steve French <sfrench@...ba.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Tom Talpey <tom@...pey.com>, linux-cifs@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH][next] ksmbd: replace one-element arrays with
 flexible-array members

2022-11-16 0:35 GMT+09:00, Gustavo A. R. Silva <gustavoars@...nel.org>:
> One-element arrays are deprecated, and we are replacing them with flexible
> array members instead. So, replace one-element arrays with flexible-array
> members in multiple structs in fs/ksmbd/smb_common.h and one in
> fs/ksmbd/smb2pdu.h.
>
> Important to mention is that doing a build before/after this patch results
> in no binary output differences.
>
> This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines
> on memcpy() and help us make progress towards globally enabling
> -fstrict-flex-arrays=3 [1].
>
> Link: https://github.com/KSPP/linux/issues/242
> Link: https://github.com/KSPP/linux/issues/79
> Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html
> [1]
> Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
Acked-by: Namjae Jeon <linkinjeon@...nel.org>

Thanks for your patch!