netdev - Re: [musl] Re: [PATCH] uapi: Prevent redefinition of struct iphdr

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Date:   Wed, 25 Dec 2019 19:49:29 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     dalias@...c.org
Cc:     AWilcox@...cox-Tech.com, netdev@...r.kernel.org,
        linux-api@...r.kernel.org, musl@...ts.openwall.com
Subject: Re: [musl] Re: [PATCH] uapi: Prevent redefinition of struct iphdr

From: Rich Felker <dalias@...c.org>
Date: Wed, 25 Dec 2019 20:05:15 -0500

> On Wed, Dec 25, 2019 at 04:34:11PM -0800, David Miller wrote:
>> I find it really strange that this, therefore, only happens for musl
>> and we haven't had thousands of reports of this conflict with glibc
>> over the years.
> 
> It's possible that there's software that's including just one of the
> headers conditional on __GLIBC__, and including both otherwise, or
> something like that. Arguably this should be considered unsupported
> usage; there are plenty of headers where that doesn't work and
> shouldn't be expected to.

I don't buy that, this is waaaaaay too common a header to use.

Please investigate.