Use kernel 5.10 by default

Signed-off-by: Kyle Harding <[email protected]>

Dockerfile

@@ -26,7 +26,7 @@ RUN apt-get update \
     vim-tiny \
     && rm -rf /var/lib/apt/lists/*
 
-ARG KERNEL_BRANCH=6.1
+ARG KERNEL_BRANCH=5.10
 
 RUN git clone --depth 1 -c advice.detachedHead=false \
     --branch "v${KERNEL_BRANCH}" https://github.com/torvalds/linux.git .
@@ -38,14 +38,14 @@ RUN git apply -v ./*.patch
 ###############################################
 
 FROM linux.git AS vmconfig-arm64
-ARG KERNEL_BRANCH
+ARG KERNEL_BRANCH=5.10
 COPY vmlinux/${KERNEL_BRANCH}/microvm-kernel-arm64-${KERNEL_BRANCH}.config ./.config
 FROM vmconfig-arm64 AS vmlinux-arm64
 RUN make Image && lz4 -9 ./arch/arm64/boot/Image ./vmlinux.bin.lz4
 
 ###############################################
 FROM linux.git AS vmconfig-amd64
-ARG KERNEL_BRANCH
+ARG KERNEL_BRANCH=5.10
 COPY vmlinux/${KERNEL_BRANCH}/microvm-kernel-x86_64-${KERNEL_BRANCH}.config ./.config
 FROM vmconfig-amd64 AS vmlinux-amd64
 RUN make vmlinux && lz4 -9 ./vmlinux ./vmlinux.bin.lz4

vmlinux/Makefile

@@ -1,5 +1,5 @@
 ARCH ?= $(shell uname -m)
-KERNEL_BRANCH ?= 6.1
+KERNEL_BRANCH ?= 5.10
 MAKEFILE_DIR := $(realpath $(shell dirname $(firstword $(MAKEFILE_LIST))))
 
 # normalize architecture to machine and platform