114 lines
3.3 KiB
Diff
114 lines
3.3 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Subject: debloat: disable common USB quirks
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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drivers/usb/host/pci-quirks.c | 16 ++++++++++++++++
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drivers/usb/host/pci-quirks.h | 18 +++++++++++++++++-
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include/linux/usb/hcd.h | 7 +++++++
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3 files changed, 40 insertions(+), 1 deletion(-)
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--- a/drivers/usb/host/pci-quirks.c
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+++ b/drivers/usb/host/pci-quirks.c
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@@ -107,6 +107,8 @@ struct amd_chipset_type {
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u8 rev;
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};
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+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
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+
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static struct amd_chipset_info {
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struct pci_dev *nb_dev;
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struct pci_dev *smbus_dev;
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@@ -511,6 +513,10 @@ void usb_amd_dev_put(void)
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}
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EXPORT_SYMBOL_GPL(usb_amd_dev_put);
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+#endif /* CONFIG_PCI_DISABLE_COMMON_QUIRKS */
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+
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+#if IS_ENABLED(CONFIG_USB_UHCI_HCD)
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+
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/*
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* Make sure the controller is completely inactive, unable to
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* generate interrupts or do DMA.
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@@ -590,8 +596,17 @@ reset_needed:
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uhci_reset_hc(pdev, base);
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return 1;
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}
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+#else
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+int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base)
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+{
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+ return 0;
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+}
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+
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+#endif
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EXPORT_SYMBOL_GPL(uhci_check_and_reset_hc);
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+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
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+
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static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask)
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{
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u16 cmd;
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@@ -1178,3 +1193,4 @@ bool usb_xhci_needs_pci_reset(struct pci
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return false;
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}
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EXPORT_SYMBOL_GPL(usb_xhci_needs_pci_reset);
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+#endif
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--- a/drivers/usb/host/pci-quirks.h
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+++ b/drivers/usb/host/pci-quirks.h
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@@ -5,6 +5,9 @@
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#ifdef CONFIG_USB_PCI
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void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
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int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
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+#endif /* CONFIG_USB_PCI */
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+
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+#if defined(CONFIG_USB_PCI) && !defined(CONFIG_PCI_DISABLE_COMMON_QUIRKS)
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int usb_amd_find_chipset_info(void);
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int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev);
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bool usb_amd_hang_symptom_quirk(void);
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@@ -19,12 +22,29 @@ void sb800_prefetch(struct device *dev,
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bool usb_xhci_needs_pci_reset(struct pci_dev *pdev);
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#else
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struct pci_dev;
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+static inline int usb_amd_find_chipset_info(void)
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+{
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+ return 0;
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+}
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+static inline bool usb_amd_hang_symptom_quirk(void)
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+{
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+ return false;
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+}
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+static inline bool usb_amd_prefetch_quirk(void)
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+{
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+ return false;
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+}
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static inline void usb_amd_quirk_pll_disable(void) {}
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static inline void usb_amd_quirk_pll_enable(void) {}
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static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {}
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static inline void usb_amd_dev_put(void) {}
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static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {}
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static inline void sb800_prefetch(struct device *dev, int on) {}
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+static inline void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev) {}
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+static inline bool usb_xhci_needs_pci_reset(struct pci_dev *pdev)
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+{
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+ return false;
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+}
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#endif /* CONFIG_USB_PCI */
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#endif /* __LINUX_USB_PCI_QUIRKS_H */
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--- a/include/linux/usb/hcd.h
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+++ b/include/linux/usb/hcd.h
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@@ -465,7 +465,14 @@ extern int usb_hcd_pci_probe(struct pci_
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extern void usb_hcd_pci_remove(struct pci_dev *dev);
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extern void usb_hcd_pci_shutdown(struct pci_dev *dev);
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+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
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extern int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *dev);
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+#else
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+static inline int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *dev)
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+{
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+ return 0;
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+}
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+#endif
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#ifdef CONFIG_PM
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extern const struct dev_pm_ops usb_hcd_pci_pm_ops;
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