linux-kernel - Re: [PATCH] watchdog: aspeed: fix 64-bit division

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Message-ID: <3c16b98f113fa8918c879a16580811556b0c35c1.camel@codeconstruct.com.au>
Date: Tue, 18 Mar 2025 11:00:21 +1030
From: Andrew Jeffery <andrew@...econstruct.com.au>
To: Arnd Bergmann <arnd@...nel.org>, Wim Van Sebroeck
 <wim@...ux-watchdog.org>,  Guenter Roeck <linux@...ck-us.net>, Joel Stanley
 <joel@....id.au>, Chin-Ting Kuo <chin-ting_kuo@...eedtech.com>
Cc: Arnd Bergmann <arnd@...db.de>, linux-watchdog@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-aspeed@...ts.ozlabs.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] watchdog: aspeed: fix 64-bit division

On Fri, 2025-03-14 at 17:02 +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> On 32-bit architectures, the new calculation causes a build failure:
> 
> ld.lld-21: error: undefined symbol: __aeabi_uldivmod
> 
> Since neither value is ever larger than a register, cast both
> sides into a uintptr_t.
> 
> Fixes: 5c03f9f4d362 ("watchdog: aspeed: Update bootstatus handling")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Reviewed-by: Andrew Jeffery <andrew@...econstruct.com.au>

Thanks,

Andrew