linux-kernel - [PATCH 0/5] Add the pci_get_base

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Message-Id: <20230825062714.6325-1-sui.jingfeng@linux.dev>
Date:   Fri, 25 Aug 2023 14:27:09 +0800
From:   Sui Jingfeng <sui.jingfeng@...ux.dev>
To:     Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, nouveau@...ts.freedesktop.org,
        linux-pci@...r.kernel.org, alsa-devel@...a-project.org,
        Sui Jingfeng <suijingfeng@...ngson.cn>
Subject: [PATCH 0/5] Add the pci_get_base_class() helper and use it

From: Sui Jingfeng <suijingfeng@...ngson.cn>

There is no function that can be used to get all PCI(e) devices in a
system by matching against its the PCI base class code only, while keep
the sub-class code and the programming interface ignored. Therefore, add
the pci_get_base_class() function to suit the need.

For example, if an application want to process all PCI(e) display devices
in a system, it can achieve such goal by writing the code as following:

    pdev = NULL;
    do {
        pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev);
        if (!pdev)
            break;

        do_something_for_pci_display_device(pdev);
    } while (1);

Sui Jingfeng (5):
  PCI: Add the pci_get_base_class() helper
  ALSA: hda/intel: Use pci_get_base_class() to reduce duplicated code
  drm/nouveau: Use pci_get_base_class() to reduce duplicated code
  drm/amdgpu: Use pci_get_base_class() to reduce duplicated code
  drm/radeon: Use pci_get_base_class() to reduce duplicated code

 drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 11 +++------
 drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c | 20 ++++-----------
 drivers/gpu/drm/nouveau/nouveau_acpi.c   | 11 +++------
 drivers/gpu/drm/radeon/radeon_bios.c     | 20 ++++-----------
 drivers/pci/search.c                     | 31 ++++++++++++++++++++++++
 include/linux/pci.h                      |  5 ++++
 sound/pci/hda/hda_intel.c                | 16 ++++--------
 7 files changed, 59 insertions(+), 55 deletions(-)

-- 
2.34.1