linux-kernel - Re: [PATCH] mm/debug: add a cast to u64 for atomic64

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Message-ID: <20190313142417.GF5996@hirez.programming.kicks-ass.net>
Date:   Wed, 13 Mar 2019 15:24:17 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Qian Cai <cai@....pw>, Jason Gunthorpe <jgg@...lanox.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: Re: [PATCH] mm/debug: add a cast to u64 for atomic64_read()

On Wed, Mar 13, 2019 at 02:46:55PM +0100, Arnd Bergmann wrote:
> It would be tempting to use scripts/atomic/* to generate more of
> the code in a consistent way, but that is likely to be even more
> work and more error-prone at the start.

Those scripts can't do actual implementations, which is the problem here
I think. The architectures really need to implement a whole bunch of
stuff themselves.