Subject: Re: linux-next: Tree for Dec 5 (soc/qcom/qcom_stats)

From: Randy Dunlap <[email-masked]>
Date: Tue, 5 Dec 2023 09:29:05 -0800

On 12/5/23 09:17, Randy Dunlap wrote:
> 
> 
> On 12/4/23 18:57, Stephen Rothwell wrote:
>> Hi all,
>>
>> Changes since 20231204:
>>
> 
> on powerpc 32-bit:
> 
> ERROR: modpost: "__udivdi3" [drivers/soc/qcom/qcom_stats.ko] undefined!
> 
> 

Hi,

Looks like this is coming from the use of mult_frac() if I am reading the
generated .s file correctly:

 # ../drivers/soc/qcom/qcom_stats.c:224: 		entry[i].dur = mult_frac(MSEC_PER_SEC, entry[i].dur, ARCH_TIMER_FREQ);
	mulhwu 3,22,4	 # tmp194, tmp190, MEM[(long long unsigned int *)_107 + 16B]
	mulli 9,9,1000	 # tmp185, MEM[(long long unsigned int *)_107 + 16B],
	mulli 4,4,1000	 # tmp3, MEM[(long long unsigned int *)_107 + 16B],
	add 3,9,3	 #, tmp185, tmp194
	bl __udivdi3		 #

-- 
~Randy