From patchwork Wed Aug 11 18:59:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jakub Kicinski X-Patchwork-Id: 12431723 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2033C4338F for ; Wed, 11 Aug 2021 18:59:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 77F3E610A2 for ; Wed, 11 Aug 2021 18:59:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229946AbhHKTAW (ORCPT ); Wed, 11 Aug 2021 15:00:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:59972 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229655AbhHKTAW (ORCPT ); Wed, 11 Aug 2021 15:00:22 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id E7FAD6105A; Wed, 11 Aug 2021 18:59:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1628708398; bh=BQRXln0y6wLV4k20ZkRVhlrdc9dZr9XLxCyyaete1k4=; h=From:To:Cc:Subject:Date:From; b=GVvpQ0CX8hNGBPrqpSr+5l80BNRx37rM7dymVXPCW9zbgQ0TepkJ2+Mm9H/7PiSr+ jIqHCXqAydrzSlxnlzxc+D0PLUmWkgLH0N8gPAphMKdr/yUXVl8wMYSGPzUah8S54a xzM1w42SseuB5ClgU7b/8PNpkn1ZTPEfJ9tqFxizPfMsalxn39Gq04t4jUOItedUlU v3KziQyttx8Enf7YA+Do/kw+x+l8oRo9IuUBF+wZ/ySfnH+5Rnz0kphVqRkUTitrmT r4y/f1fEmpH3sG8RWdTU92QTgXXf/AP0vQ8gEiNKwe04Dar25ZqYZy3PyBX03XYMti 3I42RsgPbmrOg== From: Jakub Kicinski To: bhelgaas@google.com Cc: david.e.box@linux.intel.com, linux-pci@vger.kernel.org, rafael.j.wysocki@intel.com, Jakub Kicinski Subject: [PATCH] pci: ptm: remove error message at boot Date: Wed, 11 Aug 2021 11:59:55 -0700 Message-Id: <20210811185955.3112534-1-kuba@kernel.org> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Since commit 39850ed51062 ("PCI/PTM: Save/restore Precision Time Measurement Capability for suspend/resume") devices which have PTM capability but don't enable it see this message on calls to pci_save_state(): "no suspend buffer for PTM" Drop the message, it's perfectly fine not to use a capability. Fixes: 39850ed51062 ("PCI/PTM: Save/restore Precision Time Measurement Capability for suspend/resume") Signed-off-by: Jakub Kicinski --- drivers/pci/pcie/ptm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/pci/pcie/ptm.c b/drivers/pci/pcie/ptm.c index 95d4eef2c9e8..4810faa67f52 100644 --- a/drivers/pci/pcie/ptm.c +++ b/drivers/pci/pcie/ptm.c @@ -60,10 +60,8 @@ void pci_save_ptm_state(struct pci_dev *dev) return; save_state = pci_find_saved_ext_cap(dev, PCI_EXT_CAP_ID_PTM); - if (!save_state) { - pci_err(dev, "no suspend buffer for PTM\n"); + if (!save_state) return; - } cap = (u16 *)&save_state->cap.data[0]; pci_read_config_word(dev, ptm + PCI_PTM_CTRL, cap);