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Date:   Tue, 28 Jun 2022 15:51:37 +0200
From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     Chanho Park <chanho61.park@samsung.com>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        Jiri Slaby <jirislaby@kernel.org>,
        Alim Akhtar <alim.akhtar@samsung.com>,
        Hector Martin <marcan@marcan.st>,
        Jaewon Kim <jaewon02.kim@samsung.com>,
        Vincent Whitchurch <vincent.whitchurch@axis.com>,
        Ilpo =?iso-8859-1?Q?J=E4rvinen?= <ilpo.jarvinen@linux.intel.com>,
        linux-samsung-soc@vger.kernel.org, linux-serial@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2] tty: serial: samsung_tty: loopback mode support
Message-ID: <YrsHaUqM03I6I9Om@kroah.com>
References: <CGME20220628124300epcas2p45f1e3a7051bb93ecba778cf7d96720d3@epcas2p4.samsung.com>
 <20220628124050.144398-1-chanho61.park@samsung.com>
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On Tue, Jun 28, 2022 at 09:40:50PM +0900, Chanho Park wrote:
> Internal loopback mode can be supported by setting
> UCON register's Loopback Mode bit. The mode & bit can be supported since
> s3c2410 and later SoCs. The prefix of LOOPBACK / BIT(5) naming should be
> also changed to S3C2410_ to avoid confusion.
> 
> We can test it by linux-serial-test program
> with -k option. The tool will set TIOCM_LOOP mode when the option is
> specified.
> -k, --loopback     Use internal hardware loop back

Again, what does this line mean in a changelog text?

And properly wrap your lines at 72 columns.

thanks,

greg k-h