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Date:   Tue, 13 Sep 2022 08:21:22 -0700
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Subject: Re: [PATCH v13 1/3] x86/tdx: Add TDX Guest attestation interface
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To:     Dave Hansen <dave.hansen@intel.com>,
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References: <20220909192708.1113126-1-sathyanarayanan.kuppuswamy@linux.intel.com>
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From:   Sathyanarayanan Kuppuswamy 
        <sathyanarayanan.kuppuswamy@linux.intel.com>
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Hi,

On 9/13/22 2:01 AM, Dave Hansen wrote:
> On 9/12/22 19:44, Sathyanarayanan Kuppuswamy wrote:
>>> and include the header (<linux/string.h> ?) for memchr_inv()?
>> One of the previous headers includes linux/string.h (I am not sure which one).
>> So why include it explicitly?
> Because it's a best practice.  What happens is that you ride along on
> the coat tails of another #include, someone sees that include is no
> longer used and removes it.  Then, your code is busted on some weird
> .config.
> 
> *OR*, the header itself changes and doesn't #include the dependency you
> need.
> 
> I guess you can go add this advice to Documentation/ if it's not there
> already somewhere.

Ok. I will include it explicitly.

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer