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From: Jiri Slaby <jirislaby@kernel.org>
To: Jason Andryuk <jason.andryuk@amd.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Juergen Gross <jgross@suse.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	linux-serial@vger.kernel.org, xen-devel@lists.xenproject.org
Subject: Re: [PATCH] hvc/xen: Check console connection flag
Date: Fri, 13 Mar 2026 09:33:07 +0100	[thread overview]
Message-ID: <8e5974b1-da6d-4718-9140-1f943cdd2404@kernel.org> (raw)
In-Reply-To: <20260312173845.47235-1-jason.andryuk@amd.com>

On 12. 03. 26, 18:38, Jason Andryuk wrote:
> --- a/include/xen/interface/io/console.h
> +++ b/include/xen/interface/io/console.h
> @@ -19,6 +19,19 @@ struct xencons_interface {
>       char out[2048];
>       XENCONS_RING_IDX in_cons, in_prod;
>       XENCONS_RING_IDX out_cons, out_prod;
> +/*
> + * Flag values signaling from backend to frontend whether the console is
> + * connected.  i.e. Whether it will be serviced and emptied.
> + *
> + * The flag starts as disconnected.
> + */
> +#define XENCONSOLE_DISCONNECTED 1
> +/*
> + * The flag is set to connected when the backend connects and the console
> + * will be serviced.
> + */
> +#define XENCONSOLE_CONNECTED    0

This all should be an enum. And you can document it using kernel-doc 
properly then.

> +    uint8_t connection;

And type check as well.

thanks,
-- 
js
suse labs


  reply	other threads:[~2026-03-13  8:33 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-12 17:38 [PATCH] hvc/xen: Check console connection flag Jason Andryuk
2026-03-13  8:33 ` Jiri Slaby [this message]
2026-03-13 10:44   ` Andrew Cooper
2026-03-13 15:36     ` Jason Andryuk
2026-03-13 22:35 ` Stefano Stabellini

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