linux-kernel - Re: [PATCH v3 3/3] drm/appletbdrm: use %p4cl instead of %p4cc

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Message-ID: <Z_PVfqVzvscBFND_@blossom>
Date: Mon, 7 Apr 2025 09:39:10 -0400
From: Alyssa Rosenzweig <alyssa@...enzweig.io>
To: Aditya Garg <gargaditya08@...e.com>
Cc: Petr Mladek <pmladek@...e.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Sven Peter <sven@...npeter.dev>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Aun-Ali Zaidi <admin@...eit.net>,
	Maxime Ripard <mripard@...nel.org>, airlied@...hat.com,
	Simona Vetter <simona@...ll.ch>,
	Steven Rostedt <rostedt@...dmis.org>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	Jonathan Corbet <corbet@....net>,
	Andrew Morton <akpm@...ux-foundation.org>, apw@...onical.com,
	joe@...ches.com, dwaipayanray1@...il.com, lukas.bulwahn@...il.com,
	Kees Cook <kees@...nel.org>, tamird@...il.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org, linux-doc@...r.kernel.org,
	Hector Martin <marcan@...can.st>,
	Asahi Linux Mailing List <asahi@...ts.linux.dev>
Subject: Re: [PATCH v3 3/3] drm/appletbdrm: use %p4cl instead of %p4cc

Reviewed-by: Alyssa Rosenzweig <alyssa@...enzweig.io>

Le Mon , Apr 07, 2025 at 07:07:54PM +0530, Aditya Garg a écrit :
> From: Aditya Garg <gargaditya08@...e.com>
> 
> Due to lack of a proper printk format, %p4cc was being used instead of
> %p4cl for the purpose of printing FourCCs. But the disadvange was that
> they were being printed in a reverse order. %p4cl should correct this
> issue.
> 
> Signed-off-by: Aditya Garg <gargaditya08@...e.com>
> ---
>  drivers/gpu/drm/tiny/appletbdrm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/tiny/appletbdrm.c b/drivers/gpu/drm/tiny/appletbdrm.c
> index 703b9a41a..751b05753 100644
> --- a/drivers/gpu/drm/tiny/appletbdrm.c
> +++ b/drivers/gpu/drm/tiny/appletbdrm.c
> @@ -212,7 +212,7 @@ static int appletbdrm_read_response(struct appletbdrm_device *adev,
>  	}
>  
>  	if (response->msg != expected_response) {
> -		drm_err(drm, "Unexpected response from device (expected %p4cc found %p4cc)\n",
> +		drm_err(drm, "Unexpected response from device (expected %p4cl found %p4cl)\n",
>  			&expected_response, &response->msg);
>  		return -EIO;
>  	}
> @@ -286,7 +286,7 @@ static int appletbdrm_get_information(struct appletbdrm_device *adev)
>  	}
>  
>  	if (pixel_format != APPLETBDRM_PIXEL_FORMAT) {
> -		drm_err(drm, "Encountered unknown pixel format (%p4cc)\n", &pixel_format);
> +		drm_err(drm, "Encountered unknown pixel format (%p4cl)\n", &pixel_format);
>  		ret = -EINVAL;
>  		goto free_info;
>  	}
> -- 
> 2.43.0
>