From c16517d26de30c90dabce1e456615fd7fbdce07c Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sun, 23 Feb 2020 13:20:11 +0100 Subject: kernel: copy kernel 4.19 code to 5.4 No changes were done to the patches while coping them. Currently they do not apply on top of kernel 5.4. Signed-off-by: Hauke Mehrtens --- .../811-pci_disable_usb_common_quirks.patch | 115 +++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 target/linux/generic/pending-5.4/811-pci_disable_usb_common_quirks.patch (limited to 'target/linux/generic/pending-5.4/811-pci_disable_usb_common_quirks.patch') diff --git a/target/linux/generic/pending-5.4/811-pci_disable_usb_common_quirks.patch b/target/linux/generic/pending-5.4/811-pci_disable_usb_common_quirks.patch new file mode 100644 index 0000000000..848aecaa87 --- /dev/null +++ b/target/linux/generic/pending-5.4/811-pci_disable_usb_common_quirks.patch @@ -0,0 +1,115 @@ +From: Felix Fietkau +Subject: debloat: disable common USB quirks + +Signed-off-by: Felix Fietkau +--- + drivers/usb/host/pci-quirks.c | 16 ++++++++++++++++ + drivers/usb/host/pci-quirks.h | 18 +++++++++++++++++- + include/linux/usb/hcd.h | 7 +++++++ + 3 files changed, 40 insertions(+), 1 deletion(-) + +--- a/drivers/usb/host/pci-quirks.c ++++ b/drivers/usb/host/pci-quirks.c +@@ -125,6 +125,8 @@ struct amd_chipset_type { + u8 rev; + }; + ++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS ++ + static struct amd_chipset_info { + struct pci_dev *nb_dev; + struct pci_dev *smbus_dev; +@@ -628,6 +630,10 @@ bool usb_amd_pt_check_port(struct device + } + EXPORT_SYMBOL_GPL(usb_amd_pt_check_port); + ++#endif /* CONFIG_PCI_DISABLE_COMMON_QUIRKS */ ++ ++#if IS_ENABLED(CONFIG_USB_UHCI_HCD) ++ + /* + * Make sure the controller is completely inactive, unable to + * generate interrupts or do DMA. +@@ -707,8 +713,17 @@ reset_needed: + uhci_reset_hc(pdev, base); + return 1; + } ++#else ++int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base) ++{ ++ return 0; ++} ++ ++#endif + EXPORT_SYMBOL_GPL(uhci_check_and_reset_hc); + ++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS ++ + static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask) + { + u16 cmd; +@@ -1275,3 +1290,4 @@ static void quirk_usb_early_handoff(stru + } + DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID, + PCI_CLASS_SERIAL_USB, 8, quirk_usb_early_handoff); ++#endif +--- a/drivers/usb/host/pci-quirks.h ++++ b/drivers/usb/host/pci-quirks.h +@@ -5,6 +5,9 @@ + #ifdef CONFIG_USB_PCI + void uhci_reset_hc(struct pci_dev *pdev, unsigned long base); + int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base); ++#endif /* CONFIG_USB_PCI */ ++ ++#if defined(CONFIG_USB_PCI) && !defined(CONFIG_PCI_DISABLE_COMMON_QUIRKS) + int usb_amd_find_chipset_info(void); + int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev); + bool usb_amd_hang_symptom_quirk(void); +@@ -19,6 +22,18 @@ void sb800_prefetch(struct device *dev, + bool usb_amd_pt_check_port(struct device *device, int port); + #else + struct pci_dev; ++static inline int usb_amd_find_chipset_info(void) ++{ ++ return 0; ++} ++static inline bool usb_amd_hang_symptom_quirk(void) ++{ ++ return false; ++} ++static inline bool usb_amd_prefetch_quirk(void) ++{ ++ return false; ++} + static inline void usb_amd_quirk_pll_disable(void) {} + static inline void usb_amd_quirk_pll_enable(void) {} + static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {} +@@ -29,6 +44,11 @@ static inline bool usb_amd_pt_check_port + { + return false; + } ++static inline void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev) {} ++static inline bool usb_xhci_needs_pci_reset(struct pci_dev *pdev) ++{ ++ return false; ++} + #endif /* CONFIG_USB_PCI */ + + #endif /* __LINUX_USB_PCI_QUIRKS_H */ +--- a/include/linux/usb/hcd.h ++++ b/include/linux/usb/hcd.h +@@ -473,7 +473,14 @@ extern int usb_hcd_pci_probe(struct pci_ + extern void usb_hcd_pci_remove(struct pci_dev *dev); + extern void usb_hcd_pci_shutdown(struct pci_dev *dev); + ++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS + extern int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *dev); ++#else ++static inline int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *dev) ++{ ++ return 0; ++} ++#endif + + #ifdef CONFIG_PM + extern const struct dev_pm_ops usb_hcd_pci_pm_ops; -- cgit v1.2.3