From 4f612b3bc2419630ac9a5e1958b4bfd1b5a41d20 Mon Sep 17 00:00:00 2001
From: Jianhui Zhao <jianhui.zhao@gl-inet.com>
Date: Wed, 4 Jan 2023 15:19:37 +0800
Subject: [PATCH] kernel: add ramoops module support

Signed-off-by: Jianhui Zhao <jianhui.zhao@gl-inet.com>
---
 package/kernel/linux/modules/fs.mk                | 15 +++++++++++++++
 package/kernel/linux/modules/lib.mk               |  9 +++++++++
 target/linux/generic/config-5.4                   |  8 ++++++++
 .../arch/arm64/boot/dts/mediatek/mt7981.dtsi      |  2 +-
 4 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/package/kernel/linux/modules/fs.mk b/package/kernel/linux/modules/fs.mk
index d43542b17e..87558c8c28 100644
--- a/package/kernel/linux/modules/fs.mk
+++ b/package/kernel/linux/modules/fs.mk
@@ -573,3 +573,18 @@ define KernelPackage/fuse/description
 endef
 
 $(eval $(call KernelPackage,fuse))
+
+define KernelPackage/ramoops
+  SUBMENU:=$(FS_MENU)
+  TITLE:=Log panic/oops to a RAM buffer
+  KCONFIG:= CONFIG_PSTORE=y CONFIG_PSTORE_RAM
+  DEPENDS:= +kmod-reed-solomon
+  FILES:=$(LINUX_DIR)/fs/pstore/ramoops.ko
+  AUTOLOAD:=$(call AutoLoad,10,ramoops)
+endef
+
+define KernelPackage/ramoops/description
+ Kernel module for log panic/oops to a RAM buffer support
+endef
+
+$(eval $(call KernelPackage,ramoops))
diff --git a/package/kernel/linux/modules/lib.mk b/package/kernel/linux/modules/lib.mk
index 9a341932bd..4968ec74f7 100644
--- a/package/kernel/linux/modules/lib.mk
+++ b/package/kernel/linux/modules/lib.mk
@@ -272,3 +272,12 @@ define KernelPackage/asn1-decoder
 endef
 
 $(eval $(call KernelPackage,asn1-decoder))
+
+define KernelPackage/reed-solomon
+  SUBMENU:=$(LIB_MENU)
+  TITLE:=Reed Solomon
+  HIDDEN:=1
+  FILES:=$(LINUX_DIR)/lib/reed_solomon/reed_solomon.ko
+endef
+
+$(eval $(call KernelPackage,reed-solomon))
diff --git a/target/linux/generic/config-5.4 b/target/linux/generic/config-5.4
index 18825fc1fc..63213a8e1f 100644
--- a/target/linux/generic/config-5.4
+++ b/target/linux/generic/config-5.4
@@ -4186,6 +4186,14 @@ CONFIG_PROC_SYSCTL=y
 # CONFIG_PSB6970_PHY is not set
 # CONFIG_PSI is not set
 # CONFIG_PSTORE is not set
+# CONFIG_PSTORE_DEFLATE_COMPRESS is not set
+# CONFIG_PSTORE_LZO_COMPRESS is not set
+# CONFIG_PSTORE_LZ4_COMPRESS is not set
+# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
+# CONFIG_PSTORE_842_COMPRESS is not set
+# CONFIG_PSTORE_ZSTD_COMPRESS is not set
+# CONFIG_PSTORE_CONSOLE is not set
+# CONFIG_PSTORE_PMSG is not set
 # CONFIG_PTP_1588_CLOCK is not set
 # CONFIG_PTP_1588_CLOCK_IXP46X is not set
 # CONFIG_PTP_1588_CLOCK_KVM is not set
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi
index e99ef83829..fe765bc92a 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7981.dtsi
@@ -135,7 +135,7 @@
 		reg = <0 0x15194000 0 0x1000>;
 	};
 
-	reserved-memory {
+	reserved_memory: reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges;
-- 
2.34.1