kernel config changes for slightly faster boot

Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>

alpine/kernel/Dockerfile

@@ -20,7 +20,8 @@ RUN apt-get update && apt-get -y upgrade && apt-get -y install \
   pkg-config \
   git \
   ncurses-dev \
-  p7zip-full
+  p7zip-full \
+  lzop
 
 ADD https://www.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VERSION}.tar.xz .
 
@@ -54,7 +55,7 @@ COPY kernel_config /linux/.config
 
 RUN jobs=$(nproc); \
     cd /linux && \
-    make -j ${jobs} oldconfig && \
+    make oldconfig && \
     make -j ${jobs} bzImage && \
     make INSTALL_HDR_PATH=/tmp/kernel-headers headers_install
 

alpine/kernel/kernel_config

@@ -59,10 +59,10 @@ CONFIG_HAVE_KERNEL_LZMA=y
 CONFIG_HAVE_KERNEL_XZ=y
 CONFIG_HAVE_KERNEL_LZO=y
 CONFIG_HAVE_KERNEL_LZ4=y
-# CONFIG_KERNEL_GZIP is not set
+CONFIG_KERNEL_GZIP=y
 # CONFIG_KERNEL_BZIP2 is not set
 # CONFIG_KERNEL_LZMA is not set
-CONFIG_KERNEL_XZ=y
+# CONFIG_KERNEL_XZ is not set
 # CONFIG_KERNEL_LZO is not set
 # CONFIG_KERNEL_LZ4 is not set
 CONFIG_DEFAULT_HOSTNAME="moby"
@@ -178,11 +178,11 @@ CONFIG_SCHED_AUTOGROUP=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_RD_GZIP=y
-CONFIG_RD_BZIP2=y
+# CONFIG_RD_BZIP2 is not set
-CONFIG_RD_LZMA=y
+# CONFIG_RD_LZMA is not set
-CONFIG_RD_XZ=y
+# CONFIG_RD_XZ is not set
-CONFIG_RD_LZO=y
+# CONFIG_RD_LZO is not set
-CONFIG_RD_LZ4=y
+# CONFIG_RD_LZ4 is not set
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
 CONFIG_ANON_INODES=y
@@ -1417,7 +1417,6 @@ CONFIG_VIRTIO_NET=y
 # CONFIG_NET_DSA_MV88E6XXX is not set
 # CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
 CONFIG_ETHERNET=y
-CONFIG_MDIO=y
 # CONFIG_NET_VENDOR_3COM is not set
 # CONFIG_NET_VENDOR_ADAPTEC is not set
 # CONFIG_NET_VENDOR_AGERE is not set
@@ -1429,11 +1428,7 @@ CONFIG_MDIO=y
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_BROCADE is not set
-CONFIG_NET_VENDOR_CHELSIO=y
+# CONFIG_NET_VENDOR_CHELSIO is not set
-# CONFIG_CHELSIO_T1 is not set
-CONFIG_CHELSIO_T3=y
-CONFIG_CHELSIO_T4=y
-# CONFIG_CHELSIO_T4VF is not set
 # CONFIG_NET_VENDOR_CISCO is not set
 # CONFIG_CX_ECAT is not set
 # CONFIG_DNET is not set
@@ -2746,7 +2741,6 @@ CONFIG_CRYPTO_CRC32C_INTEL=y
 # CONFIG_CRYPTO_CRC32 is not set
 # CONFIG_CRYPTO_CRC32_PCLMUL is not set
 CONFIG_CRYPTO_CRCT10DIF=y
-# CONFIG_CRYPTO_CRCT10DIF_PCLMUL is not set
 # CONFIG_CRYPTO_GHASH is not set
 CONFIG_CRYPTO_MD4=y
 CONFIG_CRYPTO_MD5=y
@@ -2848,24 +2842,23 @@ CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
 CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
 CONFIG_CRC_CCITT=y
 CONFIG_CRC16=y
-CONFIG_CRC_T10DIF=y
+# CONFIG_CRC_T10DIF is not set
-CONFIG_CRC_ITU_T=y
+# CONFIG_CRC_ITU_T is not set
 CONFIG_CRC32=y
 # CONFIG_CRC32_SELFTEST is not set
 CONFIG_CRC32_SLICEBY8=y
 # CONFIG_CRC32_SLICEBY4 is not set
 # CONFIG_CRC32_SARWATE is not set
 # CONFIG_CRC32_BIT is not set
-CONFIG_CRC7=y
+# CONFIG_CRC7 is not set
 CONFIG_LIBCRC32C=y
-CONFIG_CRC8=y
+# CONFIG_CRC8 is not set
 # CONFIG_AUDIT_ARCH_COMPAT_GENERIC is not set
 # CONFIG_RANDOM32_SELFTEST is not set
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
-CONFIG_LZ4_DECOMPRESS=y
 CONFIG_XZ_DEC=y
 CONFIG_XZ_DEC_X86=y
 CONFIG_XZ_DEC_POWERPC=y
@@ -2874,13 +2867,8 @@ CONFIG_XZ_DEC_ARM=y
 CONFIG_XZ_DEC_ARMTHUMB=y
 CONFIG_XZ_DEC_SPARC=y
 CONFIG_XZ_DEC_BCJ=y
-CONFIG_XZ_DEC_TEST=y
+# CONFIG_XZ_DEC_TEST is not set
 CONFIG_DECOMPRESS_GZIP=y
-CONFIG_DECOMPRESS_BZIP2=y
-CONFIG_DECOMPRESS_LZMA=y
-CONFIG_DECOMPRESS_XZ=y
-CONFIG_DECOMPRESS_LZO=y
-CONFIG_DECOMPRESS_LZ4=y
 CONFIG_GENERIC_ALLOCATOR=y
 CONFIG_TEXTSEARCH=y
 CONFIG_TEXTSEARCH_KMP=y
@@ -2895,7 +2883,7 @@ CONFIG_DQL=y
 CONFIG_NLATTR=y
 CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
 CONFIG_AVERAGE=y
-CONFIG_CORDIC=y
+# CONFIG_CORDIC is not set
 # CONFIG_DDR is not set
 CONFIG_UCS2_STRING=y
 CONFIG_ARCH_HAS_SG_CHAIN=y