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 --- .../810-pci_disable_common_quirks.patch | 62 ++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 target/linux/generic/pending-5.4/810-pci_disable_common_quirks.patch (limited to 'target/linux/generic/pending-5.4/810-pci_disable_common_quirks.patch') diff --git a/target/linux/generic/pending-5.4/810-pci_disable_common_quirks.patch b/target/linux/generic/pending-5.4/810-pci_disable_common_quirks.patch new file mode 100644 index 0000000000..c8c28b5175 --- /dev/null +++ b/target/linux/generic/pending-5.4/810-pci_disable_common_quirks.patch @@ -0,0 +1,62 @@ +From: Gabor Juhos +Subject: debloat: add kernel config option to disabling common PCI quirks + +Signed-off-by: Gabor Juhos +--- + drivers/pci/Kconfig | 6 ++++++ + drivers/pci/quirks.c | 6 ++++++ + 2 files changed, 12 insertions(+) + +--- a/drivers/pci/Kconfig ++++ b/drivers/pci/Kconfig +@@ -89,6 +89,13 @@ config XEN_PCIDEV_FRONTEND + The PCI device frontend driver allows the kernel to import arbitrary + PCI devices from a PCI backend to support PCI driver domains. + ++config PCI_DISABLE_COMMON_QUIRKS ++ bool "PCI disable common quirks" ++ depends on PCI ++ help ++ If you don't know what to do here, say N. ++ ++ + config PCI_ATS + bool + +--- a/drivers/pci/quirks.c ++++ b/drivers/pci/quirks.c +@@ -207,6 +207,7 @@ static void quirk_mmio_always_on(struct + DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID, + PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on); + ++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS + /* + * The Mellanox Tavor device gives false positive parity errors. Mark this + * device with a broken_parity_status to allow PCI scanning code to "skip" +@@ -3152,6 +3153,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_I + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata); + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata); + ++#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */ ++ + /* + * Ivytown NTB BAR sizes are misreported by the hardware due to an erratum. + * To work around this, query the size it should be configured to by the +@@ -3177,6 +3180,8 @@ static void quirk_intel_ntb(struct pci_d + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb); + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb); + ++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS ++ + /* + * Some BIOS implementations leave the Intel GPU interrupts enabled, even + * though no one is handling them (e.g., if the i915 driver is never +@@ -3215,6 +3220,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IN + DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq); + DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq); + ++#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */ ++ + /* + * PCI devices which are on Intel chips can skip the 10ms delay + * before entering D3 mode. -- cgit v1.2.3