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authorKarel Kočí <cynerd@email.cz>2022-10-15 23:01:29 +0200
committerKarel Kočí <cynerd@email.cz>2022-10-16 13:20:32 +0200
commit462a088c474832b19ff2730de1e6bea66d399c23 (patch)
treea512b3b451afde09a9cb06449bd7a3bdc5a8bdb4 /pkgs/patches-linux-5.15/810-pci_disable_common_quirks.patch
parentd5514ca4aeddc711639f46024528becfff7c2a70 (diff)
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Add Turris kernel (includes patches from OpenWrt)
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.patch62
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.