From nobody Mon Feb 9 11:09:17 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B5C01270ED0; Tue, 29 Apr 2025 04:06:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745899577; cv=none; b=pfrHwvliT7+J39elDBuEkcQuuQ31fY9Dcy5SL9A2aRtfOCkl0ymWGJw06SGd8XCE7vm9Tm/pg+uz/HBHkjEtW43cVKFV7FGbTfjc6YmaT9/X/GqjCr78ZxNzAHgSeZMbSkhgt25w/8WgoyuWs49xPXaJZy9yECXLr8jBoRDUecc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745899577; c=relaxed/simple; bh=xaBPg6MMzZtyI5BynxGLu2CWzfYAh0y0igpwIukNl4w=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=RvMsLXax76/pjn56J0aRi+zcCeUSfNOoBzjkWQBjX9zxIPNpSYICxdJ0hDWhlxdqe8e0wTrOZLNrSxRSWntGa5iEe9jsQSlUx+tFkfJ6yBSc8i5uLF218phTcuh+KwlPhTPJSxbLasmBXplmxAqa0VOFRKsVRPldM9xFXjhmwIA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rRQ75lu0; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rRQ75lu0" 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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable 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. 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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 Reply-To: chenlinxuan@uniontech.com From: Chen Linxuan Presume that kernel is compiled for x86_64 with gcc version 13.3.0: make allmodconfig make KCFLAGS=3D"-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 rs= eq_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..7a4b6c211359714087a75304758= 1bc8ff0c6c76b 100644 --- a/kernel/rseq.c +++ b/kernel/rseq.c @@ -27,7 +27,7 @@ RSEQ_CS_FLAG_NO_RESTART_ON_MIGRATE) =20 #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; } --=20 2.43.0