From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 85838606A320 for ; Wed, 28 Oct 2026 02:11:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=i/zJqy10; dkim=fail reason="signature verification failed" (1024-bit key, unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b=qYpt+RJw DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=vmq6DngxjniqCyiVwYVf/8VRyPwOXkJmC6Jq8yRl27I=; b=i/zJqy10Xpfzlf5r8XcQsjQCgh hkLHxbZAiFbCDGB18JBDuN4MvQSWdKCewygMhkMjGIJA81QvCYSkH/XZtiZEQf/0A9xR3tpv2s3SD H7NB/hnAKEVKU/wFebaMDR+5wxEWdbG5QY9hXgwQKm3wx3woMO/Ji+eqaX9B5TGbAQHesNnqKavib tnga/85VfXztRYW9LgDMWb6DRjMjyFlyBCedwk2kdxirhPF4SHyIjAlR/PHBlAkDSb1g8hz/jlptE 7QtTxHvq6+PNXlzMMWMFxsbL18Sdckv/YuHmNZSNvUFk/gUR6dUaDhLMnEctCjIGZGpASxrmML1Yu yPO1zBig==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLt8E-0000000654D-2tSg; Wed, 28 Oct 2026 02:11:14 +0000 Received: from m16.mail.163.com ([220.197.31.5]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLt8C-0000000652b-1iCN; Wed, 28 Oct 2026 02:11:14 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Message-ID:Date:MIME-Version:Subject:To:From: Content-Type; bh=dRf6oI9OjFWY1cb4Veae1z+HSgCdbz4ogw7DjgHpwGM=; b=qYpt+RJwRCF0KX/+Je23SE2RJtdg8sWfRlTJBYkgQjazqIosKZrPy7BmiKqm9R lMeSBT6H/smy5N567aYskw3soxO2lZEjFu6+3moV22mJgNt2lfVoA1/U+RSmdIP+ eNPBKt+kFxH/QXb7xPiQMm1mkDGc1IgvPyHBAIFAj2h4o= Message-ID: <9a761c42-9edd-48f4-b3a4-c275b603cc3e@163.com> Date: Wed, 28 Oct 2026 10:10:33 +0800 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 00/16] PCI: dwc: Cache PCIe capability offset To: Bjorn Helgaas Cc: bhelgaas@google.com, lpieralisi@kernel.org, kwilczynski@kernel.org, mani@kernel.org, jingoohan1@gmail.com, imx@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-amlogic@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-arm-msm@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-tegra@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org References: <20261027231534.GA520774@bhelgaas> Content-Language: en-US From: Hans Zhang <18255117159@163.com> In-Reply-To: <20261027231534.GA520774@bhelgaas> X-CM-TRANSID: _____wD33x2jWeFqyfNqDQ--.48494S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7Ar4DJr17Xr4kCw1xZw47urg_yoW8Xr4kpF Wjgrs2yF4kXrn2vanF93Wj93W7AF9Iy3y3CanxG34avr90vF4IgF40vrW3GF9Fyrs29r4a yFWjq3s8Gas8AFDanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07U4UDXUUUUU= X-CM-SenderInfo: rpryjkyvrrlimvzbiqqrwthudrp/xtbC7ASSNmrhWaRq6QAA35 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261027_191112_872996_4122C16C X-CRM114-Status: GOOD ( 10.38 ) X-Spam-Score: -1.8 (-) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-amlogic" X-Spam-Status: No, score=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, FROM_LOCAL_DIGITS,FROM_LOCAL_HEX,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On 10/28/26 07:15, Bjorn Helgaas wrote: > On Tue, Oct 27, 2026 at 08:28:11PM +0800, Hans Zhang wrote: >> Hi, >> >> The DWC PCIe core and its platform drivers repeatedly call >> dw_pcie_find_capability(pci, PCI_CAP_ID_EXP) to obtain the offset of the >> PCI Express Capability structure, including in paths that run more than >> once such as link polling, suspend/resume and interrupt handlers. >> >> Add a cached pcie_cap field to struct dw_pcie and a >> dw_pcie_get_pcie_cap() helper that performs the lookup on first use and >> caches the result, then convert the core and the 14 platform drivers >> that use PCI_CAP_ID_EXP. >> >> After this series, dw_pcie_find_capability(..., PCI_CAP_ID_EXP) no >> longer appears in drivers/pci/controller/dwc/ outside of the helper >> itself. >> ... > >> base-commit: 4352b8aee98005853aa63f57d6377282de17a33f > > This does indeed apply cleanly on 4352b8aee980 ("Merge tag > 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux"), > but that's pretty old and not really useful any more. > > PCI topic branches are typically based on -rc1, but of course v7.4-rc1 > hasn't been tagged. Until it is, you can use pci/main as a good base. > It's currently 17bb0e2f6c80 ("Merge tag 'pci-v7.4-changes' of > git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci"), so > drivers/pci/ in v7.4-rc1 will be pretty close to that. Hello Bjorn, Will rebase on pci/main. Best regards, Hans _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic