From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5AB0CEA794C for ; Thu, 5 Feb 2026 01:18:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From :Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xI/2KWmPVAxqEykMkOoqWIvnmzgEQ82nJSITMhdtX+M=; b=H+JqLhq1Ko2nlDgZxFVX7GI4YS 8oYpiIBTZRLHJUirzkpiLI3Nnh7vjGVi5zLM9/yjKMjQCjR8NYhBfyrEypYq7cdKGWiAGsJQwxj3f u+iX1UKu7KXnbo7n6ofKO/8tDS/PbN9ZDZ49BMBimpYDT9SunZkZl+NaT26YyOXkWwJVtt28iD9/l aJzJLnRlC9rRyvifcCKG7uk3VrzSZcWgTxW7L5LeCOra6gPnIl7OvXZaHCxY99Z2Dg0Tx7rUzTmKp 8jJXDvlP/PPkd7vShE+35YF7tlzV94C8ZZJrsC8qBsFzNXcw+OKDZz4D/E+YtixO8u2KbTa6p6fa8 zSysw+wA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vno0l-00000009Fxu-3AZy; Thu, 05 Feb 2026 01:18:23 +0000 Received: from canpmsgout01.his.huawei.com ([113.46.200.216]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vno0j-00000009FxP-004h for linux-arm-kernel@lists.infradead.org; Thu, 05 Feb 2026 01:18:23 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=xI/2KWmPVAxqEykMkOoqWIvnmzgEQ82nJSITMhdtX+M=; b=UilPor7KF1mQGZU80iF1wm9uhANb7eLpdUAAfT1EbAVqyz5f3MuJC2tHNZlVA+SgG/hUuthBb RxsdNeqfsHmppNRpkAktCBK4yL8IkwzfAa3s1QbgOejRAyaXY1R+f43osfcPzm2Pb9yzWIkUTqk OCgU5AQ7rP5i+K5xwCtHvW4= Received: from mail.maildlp.com (unknown [172.19.162.144]) by canpmsgout01.his.huawei.com (SkyGuard) with ESMTPS id 4f5zkb65ZLz1T4GK; Thu, 5 Feb 2026 09:13:43 +0800 (CST) Received: from dggpemf500011.china.huawei.com (unknown [7.185.36.131]) by mail.maildlp.com (Postfix) with ESMTPS id 2F21540567; Thu, 5 Feb 2026 09:18:07 +0800 (CST) Received: from [10.67.109.254] (10.67.109.254) by dggpemf500011.china.huawei.com (7.185.36.131) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Thu, 5 Feb 2026 09:18:05 +0800 Message-ID: <39165a75-bf07-7e3c-6ed5-9431958b706a@huawei.com> Date: Thu, 5 Feb 2026 09:18:04 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.0 Subject: Re: [PATCH v12 00/13] arm64: entry: Convert to Generic Entry To: Thomas Gleixner , , , , , , , , , , , , , , , , , , , , , , , , , , , References: <20260203133728.848283-1-ruanjinjie@huawei.com> <87bji552uk.ffs@tglx> <2699bcdc-8d56-7fe9-fa9a-a3d61476e806@huawei.com> <87y0l823o9.ffs@tglx> Content-Language: en-US From: Jinjie Ruan In-Reply-To: <87y0l823o9.ffs@tglx> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.67.109.254] X-ClientProxiedBy: kwepems200002.china.huawei.com (7.221.188.68) To dggpemf500011.china.huawei.com (7.185.36.131) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260204_171821_689941_99CE40CB X-CRM114-Status: GOOD ( 16.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 2026/2/4 18:39, Thomas Gleixner wrote: > On Wed, Feb 04 2026 at 09:28, Jinjie Ruan wrote: >> On 2026/2/3 22:16, Thomas Gleixner wrote: >>> On Tue, Feb 03 2026 at 21:37, Jinjie Ruan wrote: >>>> Currently, x86, Riscv, Loongarch use the Generic Entry which makes >>>> maintainers' work easier and codes more elegant. arm64 has already >>>> successfully switched to the Generic IRQ Entry in commit >>>> b3cf07851b6c ("arm64: entry: Switch to generic IRQ entry"), it is >>>> time to completely convert arm64 to Generic Entry. >>>> >>>> The goal is to bring arm64 in line with other architectures that already >>>> use the generic entry infrastructure, reducing duplicated code and >>>> making it easier to share future changes in entry/exit paths, such as >>>> "Syscall User Dispatch". >>>> >>>> This patch set is rebased on "sched/core". And the performance >>> >>> Why are you using sched/core, which contains a lot of unrelated >>> changes. core/entry is the one which has the prerequisites and nothing >>> else.... >> >> By the way，it looks like core/entry and arm64 for-next/entry have >> diverged: the first three patches of this series are already in arm64 >> for-next/entry but missing from core/entry. >> Perhaps the two branches should be reconciled so that both contain the >> same baseline. > > The first three patches of this series are ARM specific and have nothing > to do with the queued core/entry changes in tip. They are independent of > each other and these three ARM64 changes have no business in my tree. > > If the ARM64 folks want to apply the rest of your series then they have > to pull the core/entry branch into their for-next/core branch first so > the whole thing builds. > > But given that the merge window opens on sunday, this is probably moot > anyway and the rest of this series can go on top of rc1 in the ARM64 > tree w/o any further complications. Thanks for the clear explanation, many thanks as well for the extensive review work and the prompt replies on the generic entry changes. Regards, Jinjie > > Thanks, > > tglx >