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b478e162f2
The linux/pci.h and aspm.c files define their own sets of link state related defines which are almost the same. Consolidate the use of defines into those defined by linux/pci.h and expand PCIE_LINK_STATE_L0S to match earlier ASPM_STATE_L0S that includes both upstream and downstream bits. Rename also the defines that are internal to aspm.c to start with PCIE_LINK_STATE for consistency. While the PCIE_LINK_STATE_L0S BIT(0) -> (BIT(0) | BIT(1)) transformation is not 1:1, in practice aspm.c already used ASPM_STATE_L0S that has both bits enabled except during mapping. While at it, place the PCIE_LINK_STATE_CLKPM define last to have more logical grouping. Use static_assert() to ensure PCIE_LINK_STATE_L0S is strictly equal to the combination of PCIE_LINK_STATE_L0S_UP/DW. Link: https://lore.kernel.org/r/20240322123952.6384-2-ilpo.jarvinen@linux.intel.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>