linux-kernel - Re: [PATCH RFC v2 3/5] samples/bpf: Fix inline asm issues building samples on arm64

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Date:   Tue, 08 Aug 2017 20:35:40 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     joelaf@...gle.com
Cc:     linux-kernel@...r.kernel.org, fengc@...gle.com,
        alison@...-devel.com, Juri.Lelli@....com, ast@...nel.org,
        daniel@...earbox.net, netdev@...r.kernel.org
Subject: Re: [PATCH RFC v2 3/5] samples/bpf: Fix inline asm issues building
 samples on arm64

From: Joel Fernandes <joelaf@...gle.com>
Date: Mon, 7 Aug 2017 18:20:49 -0700

> On Mon, Aug 7, 2017 at 11:28 AM, David Miller <davem@...emloft.net> wrote:
>> The amount of hellish hacks we are adding to deal with this is getting
>> way out of control.
> 
> I agree with you that hellish hacks are being added which is why it
> keeps breaking. I think one of the things my series does is to add
> back inclusion of asm headers that were previously removed (that is
> the worst hellish hack in my opinion that existing in mainline). So in
> that respect my patch is an improvement and makes it possible to build
> for arm64 platforms (which is currently broken in mainline).

Yeah that is a problem.

Perhaps another avenue of attack is to separate "type" header files from
stuff that has functiond declarations and inline assembler code.