linux-kernel - Re: [PATCH 1/2] clocksource/drivers/timer-tegra186: Avoid 64-bit divide operation

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Message-ID: <42399fd9-0fad-4770-abea-90511a72e0e1@linaro.org>
Date: Thu, 3 Jul 2025 14:42:03 +0200
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: Jon Hunter <jonathanh@...dia.com>, Guenter Roeck <linux@...ck-us.net>
Cc: Thomas Gleixner <tglx@...utronix.de>,
 Thierry Reding <thierry.reding@...il.com>, linux-kernel@...r.kernel.org,
 linux-tegra@...r.kernel.org, Pohsun Su <pohsuns@...dia.com>,
 Robert Lin <robelin@...dia.com>, Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 1/2] clocksource/drivers/timer-tegra186: Avoid 64-bit
 divide operation

On 03/07/2025 14:34, Jon Hunter wrote:
> Hi Daniel,
> 
> On 24/06/2025 15:32, Daniel Lezcano wrote:
>> On Sat, Jun 14, 2025 at 10:55:55AM -0700, Guenter Roeck wrote:
>>> Building the driver on xtensa fails with
>>>
>>> tensa-linux-ld: drivers/clocksource/timer-tegra186.o:
>>>     in function `tegra186_timer_remove':
>>> timer-tegra186.c:(.text+0x350):
>>>     undefined reference to `__udivdi3'
>>>
>>> Avoid the problem by rearranging the offending code to avoid the 64-bit
>>> divide operation.
>>>
>>
>> Hi Guenter,
>>
>> Arnd posted a version which seems more complete.
>>
>> https://lore.kernel.org/all/20250620111939.3395525-1-arnd@kernel.org/
> 
> Actually Arnd responded here saying this version looks better :-)
> 
> https://lore.kernel.org/all/5a571236-7de0-42bc- 
> bfb2-52a57e210852@....fastmail.com/
> 
> OK, to pick up this series now?

Yes, I'm ok.

May be Thomas can pick them up for the next -rc ?

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