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From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: Will Deacon <will@kernel.org>, Sami Tolvanen <samitolvanen@google.com>
Cc: amit.kachhap@arm.com,
	clang-built-linux <clang-built-linux@googlegroups.com>,
	Will Deacon <will.deacon@arm.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [PATCH] arm64: lse: Fix LSE atomics with LLVM
Date: Tue, 18 Feb 2020 18:11:47 +0000	[thread overview]
Message-ID: <06fda1ff-c5d9-4b37-773c-75c1ac51d625@arm.com> (raw)
In-Reply-To: <20200218180514.GA2655@willie-the-truck>

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Hi Will and Sami,

On 18/02/2020 18:05, Will Deacon wrote:
> On Tue, Feb 18, 2020 at 10:02:24AM -0800, Sami Tolvanen wrote:
>> On Tue, Feb 18, 2020 at 8:54 AM Will Deacon <will@kernel.org> wrote:
>>>> -#define __LSE_PREAMBLE       ".arch armv8-a+lse\n"
>>>> +#define __LSE_PREAMBLE       ".arch_extension lse\n"
>>>
>>> I'm ok with this, but Sami assumedly changed this for a reason in
>>> e0d5896bd356cd ("arm64: lse: fix LSE atomics with LLVM's integrated
>>> assembler").
>>
>> Correct, I changed this because clang's integrated assembler wasn't
>> happy with .arch_extension lse at the time. However, it looks like
>> current versions of clang don't have this problem, so this change
>> looks good to me.
>>
>> Tested-by: Sami Tolvanen <samitolvanen@google.com>
> 
> Cheers, I'll queue this with your tag.
> 
> Will
> 

Thank you for the quick turn around :)

-- 
Regards,
Vincenzo

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      reply	other threads:[~2020-02-18 18:12 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-18 16:49 [PATCH] arm64: lse: Fix LSE atomics with LLVM Vincenzo Frascino
2020-02-18 16:54 ` Will Deacon
2020-02-18 17:42   ` Vincenzo Frascino
2020-02-18 18:03     ` Sami Tolvanen
2020-02-18 18:02   ` Sami Tolvanen
2020-02-18 18:05     ` Will Deacon
2020-02-18 18:11       ` Vincenzo Frascino [this message]

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