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SubjectRe: [PATCH v2] ipc:msg: replace one-element array with flexible-array member
On Thu, Aug 03, 2023 at 09:19:49PM -0700, Atul Raut wrote:
> One-element arrays are obsolete, and flexible
> array members have taken their place. So, in
> struct compat_msgbuf, replace the one-element
> array with a flexible-array member.
>
> This fixes warnings such as:
> ./ipc/msg.c:981:6-11: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)
>
> Signed-off-by: Atul Raut <rauji.raut@gmail.com>
> ---
> ipc/msg.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/ipc/msg.c b/ipc/msg.c
> index fd08b3cb36d7..ee6af4fe52bf 100644
> --- a/ipc/msg.c
> +++ b/ipc/msg.c
> @@ -978,7 +978,7 @@ SYSCALL_DEFINE4(msgsnd, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,
>
> struct compat_msgbuf {
> compat_long_t mtype;
> - char mtext[1];
> + char mtext[];
> };
>
> long compat_ksys_msgsnd(int msqid, compat_uptr_t msgp,
> --
> 2.34.1
>
> _______________________________________________
> Linux-kernel-mentees mailing list
> Linux-kernel-mentees@lists.linuxfoundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him
a patch that has triggered this response. He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created. Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

You are receiving this message because of the following common error(s)
as indicated below:

- This looks like a new version of a previously submitted patch, but you
did not list below the --- line any changes from the previous version.
Please read the section entitled "The canonical patch format" in the
kernel file, Documentation/process/submitting-patches.rst for what
needs to be done here to properly describe this.

If you wish to discuss this problem further, or you have questions about
how to resolve this issue, please feel free to respond to this email and
Greg will reply once he has dug out from the pending patches received
from other developers.

thanks,

greg k-h's patch email bot

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