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Re: [PATCH 9/9] x86/bitops: Use the POPCNT instruction when available
- To: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Fri, 23 Aug 2024 16:38:09 +0100
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- Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Fri, 23 Aug 2024 15:38:17 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 23/08/2024 4:35 pm, Nicola Vetrini wrote:
> On 2024-08-23 01:06, Andrew Cooper wrote:
>> diff --git a/xen/lib/generic-hweightl.c b/xen/lib/generic-hweightl.c
>> index fa4bbec273ab..4b39dd84de5e 100644
>> --- a/xen/lib/generic-hweightl.c
>> +++ b/xen/lib/generic-hweightl.c
>> @@ -43,4 +43,19 @@ static void __init __constructor
>> test_generic_hweightl(void)
>> RUNTIME_CHECK(generic_hweightl, 1 | (1UL << (BITS_PER_LONG -
>> 1)), 2);
>> RUNTIME_CHECK(generic_hweightl, -1UL, BITS_PER_LONG);
>> }
>> +
>> +#ifdef CONFIG_X86
>> +unsigned int arch_generic_hweightl(unsigned long);
>
> Hi Andrew,
>
> do you mind putting a parameter name here, as the current form
> introduces a violation of MISRA Rule 8.2 [1] (even if unnecessary,
> given its implementation)?
Sorry.
I did run Eclair on this series during development, but this was a late
change and I forgot to re-check.
Fixed locally.
~Andrew
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