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PCI: pciehp: make check_link_active more helpful
A few changes: - remove the 'inline' and let the complier decide - return a bool to indicate whether the link was active - add a debug message to indicate link state when it beocmes active Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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@ -241,13 +241,20 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
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return retval;
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}
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static inline int check_link_active(struct controller *ctrl)
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static bool check_link_active(struct controller *ctrl)
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{
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u16 link_status;
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bool ret = false;
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u16 lnk_status;
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if (pciehp_readw(ctrl, PCI_EXP_LNKSTA, &link_status))
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return 0;
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return !!(link_status & PCI_EXP_LNKSTA_DLLLA);
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if (pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status))
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return ret;
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ret = !!(lnk_status & PCI_EXP_LNKSTA_DLLLA);
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if (ret)
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ctrl_dbg(ctrl, "%s: lnk_status = %x\n", __func__, lnk_status);
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return ret;
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}
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static void pcie_wait_link_active(struct controller *ctrl)
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