linux-kernel - Re: [PATCH v1 1/1] IB/hfi1: Don't cast parameter in bit operations

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Message-ID: <646319a0-4297-edcc-db82-e4f3670cc84c@cornelisnetworks.com>
Date:   Thu, 24 Feb 2022 08:38:25 -0500
From:   Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>
To:     David Laight <David.Laight@...LAB.COM>,
        'Andy Shevchenko' <andriy.shevchenko@...ux.intel.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc:     Mike Marciniszyn <mike.marciniszyn@...nelisnetworks.com>
Subject: Re: [PATCH v1 1/1] IB/hfi1: Don't cast parameter in bit operations

On 2/23/22 4:44 PM, David Laight wrote:
> From: Andy Shevchenko
>> Sent: 23 February 2022 18:54
>>
>> While in this particular case it would not be a (critical) issue,
>> the pattern itself is bad and error prone in case somebody blindly
>> copies to their code.
> 
> It is horribly wrong on BE systems.

Note that this driver has in Kconfig: depends on X86_64.
However it's a good point about not wanting anyone to blindly copy.

-Denny