From patchwork Sat Sep 17 01:55:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yipeng Zou X-Patchwork-Id: 12978956 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 CB744C54EE9 for ; Sat, 17 Sep 2022 02:01:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=NPOQh2Mkvz3ee2WPRlbUOGZSbmwBeVy/T7zM3fCs634=; b=K8GboMMZQFyhMn 8Szdpv14UOo/mKUHsh0er+o62jN9BbxauFgAkkTNiVEhnR1C1Z9V46bvGR2kkgVcq4DH7UyWHb1Qx 86X0eYS/ulIgwvD8baeSXszMk9GyiMQ6s7Ql8reBNlyIvVh+nc80eZfwEkLaVlOysYTCFayA77WMO BkfLmhUZWVCm9LCPb3FL8HabpVAKVQo4HNINSEv9Q4xIn29eVGGLrNZQg2qiwqSBMC+1kjt4Fbzaz 7HqnYe9yzjleyM97bMnzUNKYw4Sj50N4XT7VaGhaoFWJM6+MOaA3E6nz4Th48UYia63yPZ+S1QsoY rQPbHOf11KsHq9j6JVYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oZN7M-001cZO-Kw; Sat, 17 Sep 2022 01:59:40 +0000 Received: from szxga03-in.huawei.com ([45.249.212.189]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oZN7H-001cRg-TW; Sat, 17 Sep 2022 01:59:38 +0000 Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4MTvFv11TLzBsMr; Sat, 17 Sep 2022 09:57:23 +0800 (CST) Received: from dggpemm500016.china.huawei.com (7.185.36.25) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Sat, 17 Sep 2022 09:59:28 +0800 Received: from huawei.com (10.67.175.41) by dggpemm500016.china.huawei.com (7.185.36.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Sat, 17 Sep 2022 09:59:27 +0800 From: Yipeng Zou To: , , , , , , , , , , , , , , , , , , , , , CC: , , Subject: [PATCH 0/2] make weak attributes in {k,u}probes Date: Sat, 17 Sep 2022 09:55:20 +0800 Message-ID: <20220917015522.44583-1-zouyipeng@huawei.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [10.67.175.41] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpemm500016.china.huawei.com (7.185.36.25) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220916_185936_140392_459AF09E X-CRM114-Status: UNSURE ( 3.94 ) X-CRM114-Notice: Please train this message. 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 We have some function implementation under some arch does nothing. We can mark it with weak attributes to improve. 1. arch_init_kprobes in kprobes 2. arch_uprobe_exception_notify in uprobes Yipeng Zou (2): kprobes: make arch_init_kprobes as weak uprobes: make arch_uprobe_exception_notify as weak arch/arm/probes/uprobes/core.c | 6 ------ arch/arm64/kernel/probes/uprobes.c | 6 ------ arch/csky/kernel/probes/kprobes.c | 5 ----- arch/csky/kernel/probes/uprobes.c | 6 ------ arch/riscv/kernel/probes/kprobes.c | 5 ----- arch/riscv/kernel/probes/uprobes.c | 6 ------ arch/s390/kernel/kprobes.c | 5 ----- arch/x86/kernel/kprobes/core.c | 5 ----- kernel/events/uprobes.c | 6 ++++++ kernel/kprobes.c | 5 +++++ 10 files changed, 11 insertions(+), 44 deletions(-) Acked-by: Guo Ren