linux-kernel - Re: [PATCH v2 2/5] ARCv2: introduce unaligned access under a Kconfig option

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Message-ID: <C2D7FE5348E1B147BCA15975FBA23075014642E698@US01WEMBX2.internal.synopsys.com>
Date:   Fri, 1 Feb 2019 23:36:59 +0000
From:   Vineet Gupta <vineet.gupta1@...opsys.com>
To:     Eugeniy Paltsev <eugeniy.paltsev@...opsys.com>,
        "linux-snps-arc@...ts.infradead.org" 
        <linux-snps-arc@...ts.infradead.org>
CC:     Alexey Brodkin <alexey.brodkin@...opsys.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/5] ARCv2: introduce unaligned access under a
 Kconfig option

On 2/1/19 3:28 PM, Vineet Gupta wrote:
> Guess there's no solution to this. We could force select the option in relevant
> Kconfig, but this applies to pretty much every platform and defeats the purpose of
> option in first place.

Answering my own question:

#if defined(__ARC_UNALIGNED__) && !defined(CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS)
BUILD_BUG_ON_MSG(1, "gcc doesn't support disabling unaligned accesses");
#endif