linux-kernel - Re: [PATCH] fbdev: mmp: print IRQ resource using %pR format string

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Date:	Fri, 29 Jan 2016 13:43:35 +0200
From:	Tomi Valkeinen <tomi.valkeinen@...com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	<linux-arm-kernel@...ts.infradead.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	<linux-fbdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] fbdev: mmp: print IRQ resource using %pR format string



On 25/01/16 17:03, Arnd Bergmann wrote:
> resource_size_t cannot be printed using the %x format string
> when we it is defined as u64:
> 
> drivers/video/fbdev/mmp/hw/mmp_ctrl.c: In function 'mmphw_probe':
> drivers/video/fbdev/mmp/hw/mmp_ctrl.c:506:22: error: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t {aka long long unsigned int}' [-Werror=format=]
>    dev_err(ctrl->dev, "%s: res %x - %x map failed\n", __func__,
>                       ^
> drivers/video/fbdev/mmp/hw/mmp_ctrl.c:506:22: error: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'resource_size_t {aka long long unsigned int}' [-Werror=format=]
> 
> This changes the format string to %pR, which is interpreted
> by the printk implementation to pretty-print a resource
> structure.

Thanks, queued for 4.5 fixes.

 Tomi


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