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 C2E09C369DC for ; Tue, 29 Apr 2025 18:22:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To: References:Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version: Subject:Date:From:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=n64EcHyNmqHMLJKJSLA0Q7usfRnpDI7HNDPkyY0l/1A=; b=wEDrCeN1gllnb3SIPp0xv0zEMU IScWjK9s7Nxs0Zuq6micEZ7n+Trj5vbb2VZGN1Jtz1W1GeuS4pFeKeJ0fly1DaokjznImgFADCzsx 8LJKYPrUuoiBQ3XVD23XBgJMDEIZciHBceigERDqCX7WSw0gujntfztATX3R4Aypx2XLnJAFjjNPK Bbd60e4cP3N6zqSCL/PUgg0IAHPBt5VCGI9OQZWI06sbDnrEM0LtchyNxaKo8DCQpl+5nPbAsLgSR VrVcnCAJgD6DHPstW3wr+pSKkrsLvnMNdsiIXYAuzNOs6Q0EHj0oaaxbfATz/hpf3LjXkGMqM2yoN Ld9eNbBQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u9pbb-0000000AW9Z-3l67; Tue, 29 Apr 2025 18:22:55 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u9cEd-00000008G4Q-0rIz for linux-nvme@lists.infradead.org; Tue, 29 Apr 2025 04:06:21 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 557A94A2B1; Tue, 29 Apr 2025 04:06:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 1D9C1C4CEF4; Tue, 29 Apr 2025 04:06:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745899577; bh=xaBPg6MMzZtyI5BynxGLu2CWzfYAh0y0igpwIukNl4w=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=rRQ75lu00znvBITjVyrAMVKtCn2AtPLSrSuYcoZf125A63zHSdMhkAi/HFUGNCNeK J7X1yl7r0rN29gdmq5SsHcGn/T7CmDF/ID2Uvi7mvr0PFwvdGJmCpdOIysf5LfRnjC 1w21Gx6IhBsNzjDnYjd6ko75qTravedUuRFoDbjzIS1z9I6hCFuD3mi0z2GXS1i4t6 27AUHJ9cCIxoiAkllQIMQpLiz/s3c9V6KCvxFG9I9FzO5D6fpDGPZSi6DGeJKkmgmX LtIjdVeuyd+wIT4KgskYvFdzQ7diMBplESrWTHBJv/Ah47o30uQF/CA+9DkHa7pT6h 70djD7BzAwDPA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13BE0C3ABA8; Tue, 29 Apr 2025 04:06:17 +0000 (UTC) From: Chen Linxuan via B4 Relay Date: Tue, 29 Apr 2025 12:06:09 +0800 Subject: [PATCH RFC v3 5/8] rseq: add __always_inline for rseq_kernel_fields MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250429-noautoinline-v3-5-4c49f28ea5b5@uniontech.com> References: <20250429-noautoinline-v3-0-4c49f28ea5b5@uniontech.com> In-Reply-To: <20250429-noautoinline-v3-0-4c49f28ea5b5@uniontech.com> To: Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , Andrew Morton , Yishai Hadas , Jason Gunthorpe , Shameer Kolothum , Kevin Tian , Alex Williamson , Peter Huewe , Jarkko Sakkinen , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Nick Desaulniers , Bill Wendling , Justin Stitt , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , Mathieu Desnoyers , Peter Zijlstra , "Paul E. McKenney" , Boqun Feng , Dmitry Vyukov , Andrey Konovalov , Juergen Gross , Boris Ostrovsky , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" Cc: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, virtualization@lists.linux.dev, linux-integrity@vger.kernel.org, linux-kbuild@vger.kernel.org, llvm@lists.linux.dev, Winston Wen , kasan-dev@googlegroups.com, xen-devel@lists.xenproject.org, Chen Linxuan , Changbin Du X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1064; i=chenlinxuan@uniontech.com; h=from:subject:message-id; bh=yuauFI3DVy8k9g1XQ1OrB7eESWm7f+B3/2pt9syGKzM=; b=owEBbQKS/ZANAwAKAXYe5hQ5ma6LAcsmYgBoEFAyanc3Cwc7HAg/63YHY6NNSEBN2RhZfPBtP dtxoPOqXNeJAjMEAAEKAB0WIQTO1VElAk6xdvy0ZVp2HuYUOZmuiwUCaBBQMgAKCRB2HuYUOZmu i7aID/44sv/mzy4WT2GTGw2LDhzFHfM+7rL13wS9xt+G7CMG4l6A0rduPv9Kj1+aTi8eOVMJft5 5TiNxVdcrGKSr3zwVOY/PNRlc66oIZlthPkrupbFv0SD5r0m5xlYv9Q9WAMMOLU1a+CKw7KXlIK zUkQ0dGZaFEhfFS3giTzwyMqJS6nvmjb5iRc4Zz/XOtdtIIBsD6qlLRwQDdV4KuiKgfabOvMbeX C/d2ZrlzN8bw8uBY9bJS4LF4cptR+kay58eEnIn86mc9en18eq/l2Y01BEqmDWaad6N+FJDodwI pMr/+GVr6bsXlGZJ+sULeKleGffl4G1zIhAoz7H8I0oNmr/nSGd3Wn6BKIxuLhtVppnLY1KsvGa yf2RsSmPzJHLCXkfpLhDD/oicoxFl43gpHqaND1YU47v6537LXhTaUC1wslQX7j/d1+ujI4YwtF vOr8GQoQM+gOCkSVJLMdhN73NjDBDQByqvsYdot/uoc2GscYToCLN6G8w6S/yE1iwgbv9J0upsK hCjXyMYy0yLyfeIMCV/s3OTjYIs2fkUTwhR/5ByE/gU+4GGrFSrBbZP1FArrKKo834SUQ98QfUi V+gTyYTxvmL/HMhC3LP7oMkp9BWNsUvbCEi3F0KTEm/YPo52etQ+1LPa6z6VqhkHXnGwZSJcPtW crGc2BctRQzKvsw== X-Developer-Key: i=chenlinxuan@uniontech.com; a=openpgp; fpr=D818ACDD385CAE92D4BAC01A6269794D24791D21 X-Endpoint-Received: by B4 Relay for chenlinxuan@uniontech.com/default with auth_id=380 X-Original-From: Chen Linxuan X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250428_210619_293597_0251C250 X-CRM114-Status: GOOD ( 12.90 ) X-Mailman-Approved-At: Tue, 29 Apr 2025 11:22:51 -0700 X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: chenlinxuan@uniontech.com Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org From: Chen Linxuan Presume that kernel is compiled for x86_64 with gcc version 13.3.0: make allmodconfig make KCFLAGS="-fno-inline-small-functions -fno-inline-functions-called-once" This results some objtool warnings: vmlinux.o: warning: objtool: rseq_update_cpu_node_id+0x14c: call to rseq_kernel_fields() with UACCESS enabled vmlinux.o: warning: objtool: rseq_reset_rseq_cpu_node_id+0xef: call to rseq_kernel_fields() with UACCESS enabled Signed-off-by: Chen Linxuan --- kernel/rseq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rseq.c b/kernel/rseq.c index b7a1ec327e8117b47e353cab92d62111dd261520..7a4b6c211359714087a753047581bc8ff0c6c76b 100644 --- a/kernel/rseq.c +++ b/kernel/rseq.c @@ -27,7 +27,7 @@ RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE) #ifdef CONFIG_DEBUG_RSEQ -static struct rseq *rseq_kernel_fields(struct task_struct *t) +static __always_inline struct rseq *rseq_kernel_fields(struct task_struct *t) { return (struct rseq *) t->rseq_fields; } -- 2.43.0