[source] ipq806x: clean up the kernel config and reduce kernel image size by disabling some unnecessary code

Fri Nov 4 05:06:42 PDT 2016

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/fcf90318c55815d957b62c19818995f9c995ad8c

commit fcf90318c55815d957b62c19818995f9c995ad8c
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Fri Nov 4 12:35:44 2016 +0100

    ipq806x: clean up the kernel config and reduce kernel image size by disabling some unnecessary code
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/ipq806x/config-4.4 | 57 +++++------------------------------------
 1 file changed, 7 insertions(+), 50 deletions(-)

diff --git a/target/linux/ipq806x/config-4.4 b/target/linux/ipq806x/config-4.4
index 7f0c7a9..e67d0f1 100644
--- a/target/linux/ipq806x/config-4.4
+++ b/target/linux/ipq806x/config-4.4
@@ -1,6 +1,5 @@
 CONFIG_ALIGNMENT_TRAP=y
 # CONFIG_AMBA_PL08X is not set
-# CONFIG_APM_EMULATION is not set
 CONFIG_APQ_GCC_8084=y
 CONFIG_APQ_MMCC_8084=y
 CONFIG_AR8216_PHY=y
@@ -41,18 +40,14 @@ CONFIG_ARM_ATAG_DTB_COMPAT=y
 # CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
 # CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER is not set
 CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE=y
-CONFIG_ARM_CCI=y
-CONFIG_ARM_CCI400_COMMON=y
-CONFIG_ARM_CCI400_PMU=y
-CONFIG_ARM_CCI_PMU=y
 CONFIG_ARM_CPU_SUSPEND=y
+# CONFIG_ARM_CPU_TOPOLOGY is not set
 CONFIG_ARM_GIC=y
 CONFIG_ARM_HAS_SG_CHAIN=y
 CONFIG_ARM_L1_CACHE_SHIFT=6
 CONFIG_ARM_L1_CACHE_SHIFT_6=y
 # CONFIG_ARM_LPAE is not set
 CONFIG_ARM_PATCH_PHYS_VIRT=y
-CONFIG_ARM_PMU=y
 CONFIG_ARM_QCOM_CPUFREQ=y
 # CONFIG_ARM_SMMU is not set
 # CONFIG_ARM_SP805_WATCHDOG is not set
@@ -65,9 +60,7 @@ CONFIG_BLK_DEV_LOOP=y
 # CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC is not set
 CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0
 CONFIG_BOUNCE=y
-CONFIG_BUILD_BIN2C=y
 # CONFIG_CACHE_L2X0 is not set
-CONFIG_CLEANCACHE=y
 CONFIG_CLKDEV_LOOKUP=y
 CONFIG_CLKSRC_OF=y
 CONFIG_CLKSRC_PROBE=y
@@ -75,8 +68,6 @@ CONFIG_CLKSRC_QCOM=y
 CONFIG_CLONE_BACKWARDS=y
 CONFIG_COMMON_CLK=y
 CONFIG_COMMON_CLK_QCOM=y
-CONFIG_COMPACTION=y
-CONFIG_COREDUMP=y
 CONFIG_CPUFREQ_DT=y
 CONFIG_CPU_32v6K=y
 CONFIG_CPU_32v7=y
@@ -89,8 +80,8 @@ CONFIG_CPU_COPY_V6=y
 CONFIG_CPU_CP15=y
 CONFIG_CPU_CP15_MMU=y
 CONFIG_CPU_FREQ=y
-# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
 CONFIG_CPU_FREQ_GOV_COMMON=y
 # CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
 CONFIG_CPU_FREQ_GOV_ONDEMAND=y
@@ -112,20 +103,16 @@ CONFIG_CPU_V7=y
 CONFIG_CRC16=y
 # CONFIG_CRC32_SARWATE is not set
 CONFIG_CRC32_SLICEBY8=y
-CONFIG_CROSS_MEMORY_ATTACH=y
 CONFIG_CRYPTO_DEFLATE=y
 CONFIG_CRYPTO_LZO=y
 CONFIG_CRYPTO_RNG2=y
 CONFIG_CRYPTO_WORKQUEUE=y
 CONFIG_CRYPTO_XZ=y
 CONFIG_DCACHE_WORD_ACCESS=y
-CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEBUG_GPIO=y
 CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
-CONFIG_DEBUG_PREEMPT=y
 # CONFIG_DEBUG_UART_8250 is not set
 # CONFIG_DEBUG_USER is not set
-CONFIG_DECOMPRESS_GZIP=y
 CONFIG_DEVMEM=y
 CONFIG_DMADEVICES=y
 CONFIG_DMA_ENGINE=y
@@ -142,7 +129,6 @@ CONFIG_EDAC_SUPPORT=y
 CONFIG_ETHERNET_PACKET_MANGLE=y
 CONFIG_FIXED_PHY=y
 CONFIG_FIX_EARLYCON_MEM=y
-CONFIG_FREEZER=y
 CONFIG_GENERIC_ALLOCATOR=y
 CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_CLOCKEVENTS=y
@@ -195,7 +181,6 @@ CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
 CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
 CONFIG_HAVE_FUNCTION_TRACER=y
 CONFIG_HAVE_GENERIC_DMA_COHERENT=y
-CONFIG_HAVE_HW_BREAKPOINT=y
 CONFIG_HAVE_IDE=y
 CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
 CONFIG_HAVE_MEMBLOCK=y
@@ -213,8 +198,7 @@ CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
 CONFIG_HAVE_UID16=y
 CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
 CONFIG_HIGHMEM=y
-CONFIG_HIGHPTE=y
-CONFIG_HOTPLUG_CPU=y
+# CONFIG_HIGHPTE is not set
 CONFIG_HWMON=y
 CONFIG_HWSPINLOCK=y
 CONFIG_HWSPINLOCK_QCOM=y
@@ -224,11 +208,8 @@ CONFIG_HZ_FIXED=0
 CONFIG_I2C=y
 CONFIG_I2C_BOARDINFO=y
 CONFIG_I2C_CHARDEV=y
-CONFIG_I2C_COMPAT=y
 CONFIG_I2C_HELPER_AUTO=y
 CONFIG_I2C_QUP=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_IOMMU_HELPER=y
 # CONFIG_IOMMU_IO_PGTABLE_LPAE is not set
@@ -257,7 +238,6 @@ CONFIG_MFD_QCOM_RPM=y
 CONFIG_MFD_SYSCON=y
 CONFIG_MIGHT_HAVE_CACHE_L2X0=y
 CONFIG_MIGHT_HAVE_PCI=y
-CONFIG_MIGRATION=y
 CONFIG_MMC=y
 CONFIG_MMC_ARMMMCI=y
 CONFIG_MMC_BLOCK=y
@@ -268,7 +248,6 @@ CONFIG_MMC_SDHCI_MSM=y
 # CONFIG_MMC_SDHCI_PCI is not set
 CONFIG_MMC_SDHCI_PLTFM=y
 # CONFIG_MMC_TIFM_SD is not set
-CONFIG_MODULES_TREE_LOOKUP=y
 CONFIG_MODULES_USE_ELF_REL=y
 CONFIG_MSM_GCC_8660=y
 # CONFIG_MSM_GCC_8916 is not set
@@ -328,13 +307,12 @@ CONFIG_PCI=y
 CONFIG_PCIEAER=y
 CONFIG_PCIEPORTBUS=y
 CONFIG_PCIE_DW=y
-CONFIG_PCIE_PME=y
 CONFIG_PCIE_QCOM=y
 CONFIG_PCI_DEBUG=y
+CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
 CONFIG_PCI_DOMAINS=y
 CONFIG_PCI_DOMAINS_GENERIC=y
 CONFIG_PCI_MSI=y
-CONFIG_PERF_EVENTS=y
 CONFIG_PERF_USE_VMALLOC=y
 CONFIG_PGTABLE_LEVELS=2
 CONFIG_PHYLIB=y
@@ -353,25 +331,12 @@ CONFIG_PINCTRL_MSM8X74=y
 # CONFIG_PINCTRL_QCOM_SPMI_PMIC is not set
 # CONFIG_PINCTRL_QCOM_SSBI_PMIC is not set
 # CONFIG_PL330_DMA is not set
-CONFIG_PM=y
-CONFIG_PM_CLK=y
-# CONFIG_PM_DEBUG is not set
-CONFIG_PM_GENERIC_DOMAINS=y
-CONFIG_PM_GENERIC_DOMAINS_OF=y
-CONFIG_PM_GENERIC_DOMAINS_SLEEP=y
 CONFIG_PM_OPP=y
-CONFIG_PM_SLEEP=y
-CONFIG_PM_SLEEP_SMP=y
 CONFIG_POWER_RESET=y
 CONFIG_POWER_RESET_MSM=y
 CONFIG_POWER_SUPPLY=y
 CONFIG_PPS=y
-CONFIG_PREEMPT=y
-CONFIG_PREEMPT_COUNT=y
-# CONFIG_PREEMPT_NONE is not set
-CONFIG_PREEMPT_RCU=y
 CONFIG_PRINTK_TIME=y
-CONFIG_PROC_PAGE_MONITOR=y
 CONFIG_PTP_1588_CLOCK=y
 CONFIG_QCOM_ADM=y
 CONFIG_QCOM_BAM_DMA=y
@@ -387,10 +352,8 @@ CONFIG_QCOM_SMEM=y
 CONFIG_QCOM_WDT=y
 CONFIG_RAS=y
 CONFIG_RATIONAL=y
-# CONFIG_RCU_BOOST is not set
 CONFIG_RCU_CPU_STALL_TIMEOUT=21
 CONFIG_RCU_STALL_COMMON=y
-CONFIG_RD_GZIP=y
 CONFIG_REGMAP=y
 CONFIG_REGMAP_MMIO=y
 CONFIG_REGULATOR=y
@@ -423,9 +386,6 @@ CONFIG_SPMI_MSM_PMIC_ARB=y
 CONFIG_SRCU=y
 CONFIG_STMMAC_ETH=y
 CONFIG_STMMAC_PLATFORM=y
-# CONFIG_STRIP_ASM_SYMS is not set
-CONFIG_SUSPEND=y
-CONFIG_SUSPEND_FREEZER=y
 CONFIG_SWCONFIG=y
 CONFIG_SWIOTLB=y
 CONFIG_SWP_EMULATE=y
@@ -437,25 +397,22 @@ CONFIG_THERMAL_HWMON=y
 CONFIG_THERMAL_OF=y
 # CONFIG_THUMB2_KERNEL is not set
 CONFIG_TICK_CPU_ACCOUNTING=y
-CONFIG_TIMER_STATS=y
+CONFIG_TREE_RCU=y
 CONFIG_UBIFS_FS=y
-# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
+CONFIG_UBIFS_FS_ADVANCED_COMPR=y
 CONFIG_UBIFS_FS_LZO=y
-CONFIG_UBIFS_FS_XZ=y
+# CONFIG_UBIFS_FS_XZ is not set
 CONFIG_UBIFS_FS_ZLIB=y
 CONFIG_UEVENT_HELPER_PATH=""
 CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
-CONFIG_UNINLINE_SPIN_UNLOCK=y
 CONFIG_USB_SUPPORT=y
 CONFIG_USE_OF=y
 CONFIG_VDSO=y
 CONFIG_VECTORS_BASE=0xffff0000
 CONFIG_VFP=y
 CONFIG_VFPv3=y
-CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_WATCHDOG_CORE=y
 # CONFIG_WL_TI is not set
-# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
 CONFIG_XPS=y
 CONFIG_XZ_DEC_ARM=y
 CONFIG_XZ_DEC_BCJ=y

