diff options
Diffstat (limited to 'pkgs/patches-linux-5.15/810-pci_disable_common_quirks.patch')
| -rw-r--r-- | pkgs/patches-linux-5.15/810-pci_disable_common_quirks.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/pkgs/patches-linux-5.15/810-pci_disable_common_quirks.patch b/pkgs/patches-linux-5.15/810-pci_disable_common_quirks.patch new file mode 100644 index 0000000..7edbd94 --- /dev/null +++ b/pkgs/patches-linux-5.15/810-pci_disable_common_quirks.patch @@ -0,0 +1,62 @@ +From: Gabor Juhos <juhosg@openwrt.org> +Subject: debloat: add kernel config option to disabling common PCI quirks + +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +--- + drivers/pci/Kconfig | 6 ++++++ + drivers/pci/quirks.c | 6 ++++++ + 2 files changed, 12 insertions(+) + +--- a/drivers/pci/Kconfig ++++ b/drivers/pci/Kconfig +@@ -118,6 +118,13 @@ 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 +@@ -206,6 +206,7 @@ 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. Disable + * parity error reporting. +@@ -3363,6 +3364,8 @@ 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 +@@ -3388,6 +3391,8 @@ 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 +@@ -3426,6 +3431,8 @@ 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. |