From nobody Tue Feb 10 01:16:24 2026 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) (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 115C11C3C18; Sun, 2 Nov 2025 14:32:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.5 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762093979; cv=none; b=PYP5FZzM09i/oVdoGEATjQLJlmsDWJEdxGTg1QXWAXhRuIODws9fsckdOs5H/M3XEF5+2amN/pGADV4pHApUsKC1i1C1dx1nvFLwte7rMXmsQZ349WnQXV6miC1F8+idj8pqOjFpfoknJJ28KV9aJHf0p2pEsPuUH4qEQpDltXk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762093979; c=relaxed/simple; bh=hEiJbhYD13gFMTAh0JXxdsVAfQ4EQ9Br4DKPtYZ0fW8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=D90nXXUOOtE+RlplKBBIYqVRRV0CYqYQidZEPYQgkB49is/n4Eemq8HBpxVumUM3cKLCsgZcZ8idIZYGkTZZpCMN0U6ynN6aJAczb6ZWWrOUTR/PUJ++MzqkNHUkz9gejx/jR2CgqbCRJnY2zdnnuKTFZGf94U4DzNxYZ4iS2I4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=efe4IK8B; arc=none smtp.client-ip=220.197.31.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="efe4IK8B" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=Hh ls6A+3/SNax9SaFUeFpATr4kJuyuoT+8CwX9o9kfs=; b=efe4IK8BYjPcCbZyhC UL01GHjWMbSF08QDyXK1AQm9X2zh+cfO9Hm4Af3glGxKj3vQFL8hmfRAituWadQk bfxop0+nfcHnpoXxkgYq4kBt2Y6DqKwwj28Ff4DjdjKoddO5q6gDGGWUrD6OI3ba 57Iqj+JCeRfTDoDBEHqHEuhRA= Received: from zhb.. (unknown []) by gzga-smtp-mtada-g0-1 (Coremail) with SMTP id _____wAH5VdpawdpqU+1BA--.1772S3; Sun, 02 Nov 2025 22:32:10 +0800 (CST) From: Hans Zhang <18255117159@163.com> To: bhelgaas@google.com, lpieralisi@kernel.org, kw@linux.com, kwilczynski@kernel.org, mani@kernel.org, ilpo.jarvinen@linux.intel.com, jingoohan1@gmail.com Cc: robh@kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Hans Zhang <18255117159@163.com> Subject: [PATCH v4 1/3] PCI: Add public pcie_valid_speed() for shared validation Date: Sun, 2 Nov 2025 22:32:04 +0800 Message-Id: <20251102143206.111347-2-18255117159@163.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251102143206.111347-1-18255117159@163.com> References: <20251102143206.111347-1-18255117159@163.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wAH5VdpawdpqU+1BA--.1772S3 X-Coremail-Antispam: 1Uf129KBjvJXoW7urW5CF43uw45Xw15KF43trb_yoW8WrWxpa yDAa45AF18Ja15ZFsYya18XFy5GFZayFW0krW3u39xZF13A3s3Jay5tayxtry2qrWIyF15 Xa1YyF18CF4jyr7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pR0oGdUUUUU= X-CM-SenderInfo: rpryjkyvrrlimvzbiqqrwthudrp/1tbiDxr5o2kHZmtoewAAs- Content-Type: text/plain; charset="utf-8" Extract the PCIe speed validation logic from bwctrl.c's static pcie_valid_speed() into a public static inline function in pci.h. This allows consistent speed range checks (2.5GT/s to 64.0GT/s) across multiple drivers and functions, avoiding duplicate code and ensuring validation consistency as per PCIe specifications. Signed-off-by: Hans Zhang <18255117159@163.com> --- drivers/pci/pci.h | 5 +++++ drivers/pci/pcie/bwctrl.c | 5 ----- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 4492b809094b..e95f2e1d0634 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -526,6 +526,11 @@ void pci_bus_put(struct pci_bus *bus); (speed) =3D=3D PCIE_SPEED_2_5GT ? 2500*8/10 : \ 0) =20 +static inline bool pcie_valid_speed(enum pci_bus_speed speed) +{ + return (speed >=3D PCIE_SPEED_2_5GT) && (speed <=3D PCIE_SPEED_64_0GT); +} + static inline int pcie_dev_speed_mbps(enum pci_bus_speed speed) { switch (speed) { diff --git a/drivers/pci/pcie/bwctrl.c b/drivers/pci/pcie/bwctrl.c index 36f939f23d34..5953b6940992 100644 --- a/drivers/pci/pcie/bwctrl.c +++ b/drivers/pci/pcie/bwctrl.c @@ -48,11 +48,6 @@ struct pcie_bwctrl_data { /* Prevent port removal during Link Speed changes. */ static DECLARE_RWSEM(pcie_bwctrl_setspeed_rwsem); =20 -static bool pcie_valid_speed(enum pci_bus_speed speed) -{ - return (speed >=3D PCIE_SPEED_2_5GT) && (speed <=3D PCIE_SPEED_64_0GT); -} - static u16 pci_bus_speed2lnkctl2(enum pci_bus_speed speed) { static const u8 speed_conv[] =3D { --=20 2.34.1