[RESEND PATCH v4 0/2] PCI: Introduce pci_clear/set_config_dword()

Hans Zhang 18255117159 at 163.com
Mon Jan 19 00:47:54 AEDT 2026


Hi,

Gentle ping.

Best regards,
Hans

On 2025/11/2 00:22, Hans Zhang wrote:
> This series introduces auxiliary functions for the PCI configuration space
> and simplifies the read and write operations of the AER driver, reducing a
> lot of repetitive code.
> 
> Patch 1 adds pci_clear_config_dword() and pci_set_config_dword() helpers
> to reduce repetitive read-modify-write sequences when modifying PCI config
> space. These helpers improve code readability and maintainability.
> 
> Patch 2 refactors the PCIe AER driver to use these new helpers,
> eliminating manual read-modify-write patterns and intermediate variable
> in several functions. This results in cleaner and more concise code.
> 
> ---
> Changes for v4:
> - Introduce pci_clear/set_config_dword()
> 
> Changes for v3:
> https://patchwork.kernel.org/project/linux-pci/patch/20250816161743.340684-1-18255117159@163.com/
> 
> - Rebase to v6.17-rc1.
> - The patch commit message were modified.
> - Add Acked-by: Manivannan Sadhasivam <mani at kernel.org>
> 
> Changes for v2:
> - The patch commit message were modified.
> - New optimizations for the functions disable_ecrc_checking, aer_enable_irq, and aer_disable_irq have been added.
> ---
> 
> Hans Zhang (2):
>    PCI: Introduce pci_clear/set_config_dword()
>    PCI/AER: Use pci_clear/set_config_dword to simplify code
> 
>   drivers/pci/pcie/aer.c | 29 ++++++++++-------------------
>   include/linux/pci.h    | 12 ++++++++++++
>   2 files changed, 22 insertions(+), 19 deletions(-)
> 
> 
> base-commit: 8742b2d8935f476449ef37e263bc4da3295c7b58



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