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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKixC-00030a-MF; Tue, 22 Sep 2020 14:07:34 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKixA-000301-ID for linux-arm-kernel@lists.infradead.org; Tue, 22 Sep 2020 14:07:33 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6EC90101E; Tue, 22 Sep 2020 07:07:31 -0700 (PDT) Received: from arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 52D133F718; Tue, 22 Sep 2020 07:07:30 -0700 (PDT) Date: Tue, 22 Sep 2020 15:07:27 +0100 From: Dave Martin To: Mark Brown Subject: Re: [PATCH v4 3/8] arm64/fpsimdmacros: Allow the macro "for" to be used in more cases Message-ID: <20200922140727.GE6642@arm.com> References: <20200828181155.17745-1-broonie@kernel.org> <20200828181155.17745-4-broonie@kernel.org> <20200921123802.GG2139@willie-the-truck> <20200921165330.GB6642@arm.com> <20200921180910.GD4792@sirena.org.uk> <20200922135139.GC6642@arm.com> <20200922135956.GU4792@sirena.org.uk> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200922135956.GU4792@sirena.org.uk> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200922_100732_723551_2DE24A92 X-CRM114-Status: GOOD ( 22.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Julien Grall , Catalin Marinas , Zhang Lei , Julien Grall , Will Deacon , linux-arm-kernel@lists.infradead.org, Daniel Kiss Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Sep 22, 2020 at 02:59:56PM +0100, Mark Brown wrote: > On Tue, Sep 22, 2020 at 02:51:41PM +0100, Dave Martin wrote: > > On Mon, Sep 21, 2020 at 07:09:10PM +0100, Mark Brown wrote: > > > > Yes, this was my understanding of what this was doing when I looked > > > through things when taking over the code - if we're going to use a > > > different macro mode to the rest of the code then it seems sensible to > > > make sure we don't try to build any other code with that macro mode > > > otherwise it'll doubtless blow up in our faces at some point. > > > I think that it's unlikely ever to be used except for this kind of > > purpose, since it doesn't offer much over normal macro mode. > > > altmacro mode is off by default, and can't be turned on via command-line > > options IIRC, so it seems unlikely to be turned on everywhere by > > accident. > > Right, the issue is that if altmacro mode expansions pull in something > that misbehaves when interpreted using altmacro mode that'd cause > trouble so usages like this should take care to ensure that only code > specifically writen for altmacro mode gets interpreted using it. Agreed -- which is what this code is actually doing IIUC. Cheers ---Dave _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel