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Refactor the __pci_find_next_cap_ttl() to improve code clarity: - Replace magic number 0x40 with PCI_STD_HEADER_SIZEOF. - Use ALIGN_DOWN() for position alignment instead of manual bitmask. - Extract PCI capability fields via FIELD_GET() with standardized masks. - Add necessary headers (linux/align.h). No functional changes intended. Signed-off-by: Hans Zhang <18255117159@163.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Niklas Schnelle <schnelle@linux.ibm.com> Acked-by: Manivannan Sadhasivam <mani@kernel.org> Link: https://patch.msgid.link/20250813144529.303548-2-18255117159@163.com |
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