From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from xry111.site (xry111.site [89.208.246.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C4961EEE6 for ; Tue, 25 Nov 2025 08:01:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=89.208.246.23 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764057672; cv=none; b=n8yrN1dZEXKN51GBATZ4RjlJyqAzLJ2HGaszUsGVMNKGoWySu+90ZmW0FAmCuzXzwt1MP0U4F2nZcWct88dm7AsTtqjxSUbMNKuVFbbgZ70/KsElBYKgl/PRS5v1LhMuryFnIWZhMgwO6v7OxkL72Rl1lr0AflxZjFZomn/YfcM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764057672; c=relaxed/simple; bh=8BrNhyhVfJ4iuUz29GD7wyqyF3JUH6lOd4pzAnc/v8g=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=NV0ajYCiB74eye7IBY5q3yw1+0XKgV4scoP5n/RzMHbqaznqp9GGMsMPQ+ZPxEVopVaCvelPleZ87NAuvs7VUB7IvSMcXwD84cM20Ft574acYJ8Wj757/8RWnnQtY9HTAC9umk7/IWCEg2Bw2ICWjwYZsCJ/YeRqVxSj9z65ED0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=xry111.site; spf=pass smtp.mailfrom=xry111.site; dkim=pass (1024-bit key) header.d=xry111.site header.i=@xry111.site header.b=EJW+epP0; arc=none smtp.client-ip=89.208.246.23 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=xry111.site Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=xry111.site Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=xry111.site header.i=@xry111.site header.b="EJW+epP0" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=xry111.site; s=default; t=1764057668; bh=MlytAwihPr4a/q9a3aU0p/eP4Aep0T+K4h3bQVMgwkQ=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=EJW+epP0wPt+yJgtSlSQv0LUiXtaL10Q7BaamVVAdIN7yIxfkAm5t6ZxS4pZEmaJS SiI6Y+VR9sGnOfQJZNig/33q1wOj8L2P+2rrcr5V8WvAcfcR5M8NobSrMxST0TmW54 JcLhR+OSVeQwNY1tLl52mcyQN27wiXvdclDIkauo= Received: from [127.0.0.1] (2607-8700-5500-e873-0000-0000-0000-1001.16clouds.com [IPv6:2607:8700:5500:e873::1001]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (secp384r1) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@xry111.site) by xry111.site (Postfix) with ESMTPSA id 03E7C67020; Tue, 25 Nov 2025 03:01:04 -0500 (EST) Message-ID: Subject: Re: [PATCH v2 1/2] LoongArch: Add 128-bit atomic cmpxchg support From: Xi Ruoyao To: mengqinggang , George Guo , hev Cc: Huacai Chen , WANG Xuerui , loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, George Guo Date: Tue, 25 Nov 2025 16:01:02 +0800 In-Reply-To: References: <20251124-2-v2-0-b38216e25fd9@linux.dev> <20251124-2-v2-1-b38216e25fd9@linux.dev> <20251125104316.00001294@linux.dev> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Tue, 2025-11-25 at 15:34 +0800, mengqinggang wrote: > > I clearly remember when Jiajie submitted the sc.q support to GAS > > Qinggang was really insistent on supporting the additional ",0" here.= =20 > > But I don't really understand why we must support it... > Because gcc output=C2=A0sc.q $r,$r,$r,0.=20 At that time GCC had not started to use sc.q yet. Some unfortunate communication error, I guess. --=20 Xi Ruoyao