[PATCH] arm: omap: reduce zImage size on omap2plus_defconfig

Felipe Balbi balbi at ti.com
Mon Dec 22 10:05:35 PST 2014


By converting a few drivers to modules because they
won't be needed during boot anyways, we can shave off
about 700KiB of text.

Note that while at that, and after discussions with Tony
Lindgren, a few extra drivers were either removed because
they weren't needed, or added because they're useful for
debugging/testing.

Below is output of size for pre and post vmlinux binaries:

   text    data     bss     dec     hex filename
8342992  757876 8411840 17512708        10b3904 vmlinux-post-patch
9069110  800316 8419072 18288498        1170f72 vmlinux-pre-patch

Signed-off-by: Felipe Balbi <balbi at ti.com>
---
 arch/arm/configs/omap2plus_defconfig | 121 ++++++++++++++++++++++-------------
 1 file changed, 75 insertions(+), 46 deletions(-)

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index c2c3a85..a1dc3ed 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -13,7 +13,6 @@ CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_DEVICE=y
 CONFIG_CPUSETS=y
 CONFIG_CGROUP_CPUACCT=y
-CONFIG_RESOURCE_COUNTERS=y
 CONFIG_MEMCG=y
 CONFIG_MEMCG_SWAP=y
 CONFIG_MEMCG_KMEM=y
@@ -68,7 +67,6 @@ CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
 CONFIG_CPU_FREQ_GOV_USERSPACE=y
 CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
-CONFIG_GENERIC_CPUFREQ_CPU0=y
 # CONFIG_ARM_OMAP2PLUS_CPUFREQ is not set
 CONFIG_CPU_IDLE=y
 CONFIG_BINFMT_MISC=y
@@ -103,7 +101,7 @@ CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_DMA_CMA=y
 CONFIG_OMAP_OCP2SCP=y
-CONFIG_CONNECTOR=y
+CONFIG_CONNECTOR=m
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_BLOCK=y
@@ -122,14 +120,13 @@ CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=16384
 CONFIG_SENSORS_TSL2550=m
 CONFIG_BMP085_I2C=m
-CONFIG_SENSORS_LIS3_I2C=m
 CONFIG_SRAM=y
+CONFIG_SENSORS_LIS3_I2C=m
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_SCAN_ASYNC=y
-CONFIG_ATA=y
-CONFIG_SATA_AHCI_PLATFORM=y
-CONFIG_MD=y
+CONFIG_ATA=m
+CONFIG_SATA_AHCI_PLATFORM=m
 CONFIG_NETDEVICES=y
 # CONFIG_NET_VENDOR_ARC is not set
 # CONFIG_NET_CADENCE is not set
@@ -154,8 +151,8 @@ CONFIG_TI_CPSW=y
 # CONFIG_NET_VENDOR_WIZNET is not set
 CONFIG_AT803X_PHY=y
 CONFIG_SMSC_PHY=y
-CONFIG_USB_USBNET=y
-CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_USBNET=m
+CONFIG_USB_NET_SMSC95XX=m
 CONFIG_USB_ALI_M5632=y
 CONFIG_USB_AN2720=y
 CONFIG_USB_EPSON2888=y
@@ -172,18 +169,22 @@ CONFIG_WLCORE_SDIO=m
 CONFIG_MWIFIEX=m
 CONFIG_MWIFIEX_SDIO=m
 CONFIG_MWIFIEX_USB=m
-CONFIG_INPUT_JOYDEV=y
-CONFIG_INPUT_EVDEV=y
-CONFIG_KEYBOARD_GPIO=y
+CONFIG_INPUT_JOYDEV=m
+CONFIG_INPUT_EVDEV=m
+CONFIG_KEYBOARD_ATKBD=m
+CONFIG_KEYBOARD_GPIO=m
 CONFIG_KEYBOARD_MATRIX=m
-CONFIG_KEYBOARD_TWL4030=y
+CONFIG_KEYBOARD_OMAP4=m
+CONFIG_KEYBOARD_TWL4030=m
+# CONFIG_INPUT_MOUSE is not set
 CONFIG_INPUT_TOUCHSCREEN=y
 CONFIG_TOUCHSCREEN_ADS7846=m
 CONFIG_TOUCHSCREEN_EDT_FT5X06=m
 CONFIG_TOUCHSCREEN_TSC2005=m
 CONFIG_TOUCHSCREEN_TSC2007=m
 CONFIG_INPUT_MISC=y
-CONFIG_INPUT_TWL4030_PWRBUTTON=y
+CONFIG_INPUT_TWL4030_PWRBUTTON=m
+CONFIG_SERIO=m
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
@@ -196,15 +197,16 @@ CONFIG_SERIAL_8250_RSA=y
 CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_OMAP=y
 CONFIG_SERIAL_OMAP_CONSOLE=y
-CONFIG_HW_RANDOM=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_SPI=y
 CONFIG_SPI_OMAP24XX=y
+CONFIG_SPI_TI_QSPI=m
 CONFIG_PINCTRL_SINGLE=y
 CONFIG_DEBUG_GPIO=y
 CONFIG_GPIO_SYSFS=y
-CONFIG_GPIO_TWL4030=y
-CONFIG_W1=y
+CONFIG_GPIO_TWL4030=m
+CONFIG_W1=m
+CONFIG_HDQ_MASTER_OMAP=m
 CONFIG_BATTERY_BQ27x00=m
 CONFIG_CHARGER_ISP1704=m
 CONFIG_CHARGER_TWL4030=m
@@ -213,20 +215,21 @@ CONFIG_CHARGER_BQ24190=m
 CONFIG_CHARGER_BQ24735=m
 CONFIG_POWER_RESET=y
 CONFIG_POWER_AVS=y
+CONFIG_HWMON=m
 CONFIG_SENSORS_LM75=m
-CONFIG_THERMAL=y
+CONFIG_SENSORS_TMP102=m
+CONFIG_THERMAL=m
 CONFIG_THERMAL_GOV_FAIR_SHARE=y
 CONFIG_THERMAL_GOV_USER_SPACE=y
 CONFIG_CPU_THERMAL=y
-CONFIG_TI_SOC_THERMAL=y
+CONFIG_TI_SOC_THERMAL=m
 CONFIG_TI_THERMAL=y
 CONFIG_OMAP4_THERMAL=y
 CONFIG_OMAP5_THERMAL=y
 CONFIG_DRA752_THERMAL=y
 CONFIG_WATCHDOG=y
-CONFIG_OMAP_WATCHDOG=y
-CONFIG_TWL4030_WATCHDOG=y
-CONFIG_MFD_SYSCON=y
+CONFIG_OMAP_WATCHDOG=m
+CONFIG_TWL4030_WATCHDOG=m
 CONFIG_MFD_PALMAS=y
 CONFIG_MFD_TPS65217=y
 CONFIG_MFD_TPS65218=y
@@ -289,51 +292,77 @@ CONFIG_SND_OMAP_SOC=m
 CONFIG_SND_OMAP_SOC_OMAP_TWL4030=m
 CONFIG_SND_OMAP_SOC_OMAP_ABE_TWL6040=m
 CONFIG_SND_OMAP_SOC_OMAP3_PANDORA=m
-CONFIG_USB=y
+CONFIG_HID_GENERIC=m
+CONFIG_USB_HIDDEV=y
+CONFIG_USB_KBD=m
+CONFIG_USB_MOUSE=m
+CONFIG_USB=m
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-CONFIG_USB_MON=y
+CONFIG_USB_MON=m
 CONFIG_USB_XHCI_HCD=m
-CONFIG_USB_WDM=y
-CONFIG_USB_STORAGE=y
+CONFIG_USB_WDM=m
+CONFIG_USB_STORAGE=m
+CONFIG_USB_MUSB_HDRC=m
+CONFIG_USB_MUSB_OMAP2PLUS=m
+CONFIG_USB_MUSB_AM35X=m
+CONFIG_USB_MUSB_DSPS=m
 CONFIG_USB_DWC3=m
-CONFIG_USB_TEST=y
+CONFIG_USB_TEST=m
 CONFIG_AM335X_PHY_USB=y
-CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET=m
 CONFIG_USB_GADGET_DEBUG=y
 CONFIG_USB_GADGET_DEBUG_FILES=y
 CONFIG_USB_GADGET_DEBUG_FS=y
+CONFIG_USB_CONFIGFS=m
+CONFIG_USB_CONFIGFS_SERIAL=y
+CONFIG_USB_CONFIGFS_ACM=y
+CONFIG_USB_CONFIGFS_OBEX=y
+CONFIG_USB_CONFIGFS_NCM=y
+CONFIG_USB_CONFIGFS_ECM=y
+CONFIG_USB_CONFIGFS_ECM_SUBSET=y
+CONFIG_USB_CONFIGFS_RNDIS=y
+CONFIG_USB_CONFIGFS_EEM=y
+CONFIG_USB_CONFIGFS_MASS_STORAGE=y
+CONFIG_USB_CONFIGFS_F_LB_SS=y
+CONFIG_USB_CONFIGFS_F_FS=y
+CONFIG_USB_CONFIGFS_F_UAC1=y
+CONFIG_USB_CONFIGFS_F_UAC2=y
+CONFIG_USB_CONFIGFS_F_MIDI=y
+CONFIG_USB_CONFIGFS_F_HID=y
 CONFIG_USB_ZERO=m
 CONFIG_MMC=y
 CONFIG_SDIO_UART=y
 CONFIG_MMC_OMAP=y
 CONFIG_MMC_OMAP_HS=y
 CONFIG_NEW_LEDS=y
-CONFIG_LEDS_CLASS=y
-CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_CLASS=m
+CONFIG_LEDS_GPIO=m
 CONFIG_LEDS_TRIGGERS=y
-CONFIG_LEDS_TRIGGER_TIMER=y
-CONFIG_LEDS_TRIGGER_ONESHOT=y
-CONFIG_LEDS_TRIGGER_HEARTBEAT=y
-CONFIG_LEDS_TRIGGER_BACKLIGHT=y
+CONFIG_LEDS_TRIGGER_TIMER=m
+CONFIG_LEDS_TRIGGER_ONESHOT=m
+CONFIG_LEDS_TRIGGER_HEARTBEAT=m
+CONFIG_LEDS_TRIGGER_BACKLIGHT=m
 CONFIG_LEDS_TRIGGER_CPU=y
-CONFIG_LEDS_TRIGGER_GPIO=y
-CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_LEDS_TRIGGER_GPIO=m
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_TWL92330=y
-CONFIG_RTC_DRV_TWL4030=y
-CONFIG_RTC_DRV_OMAP=y
+CONFIG_RTC_DRV_TWL4030=m
+CONFIG_RTC_DRV_OMAP=m
 CONFIG_DMADEVICES=y
 CONFIG_TI_EDMA=y
 CONFIG_DMA_OMAP=y
-CONFIG_EXTCON=y
-CONFIG_EXTCON_PALMAS=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXTCON=m
+CONFIG_EXTCON_PALMAS=m
+CONFIG_TI_EMIF=m
 CONFIG_PWM=y
-CONFIG_PWM_TIECAP=y
-CONFIG_PWM_TIEHRPWM=y
-CONFIG_PWM_TWL=y
-CONFIG_PWM_TWL_LED=y
-CONFIG_OMAP_USB2=y
-CONFIG_TI_PIPE3=y
+CONFIG_PWM_TIECAP=m
+CONFIG_PWM_TIEHRPWM=m
+CONFIG_PWM_TWL=m
+CONFIG_PWM_TWL_LED=m
+CONFIG_OMAP_USB2=m
+CONFIG_TI_PIPE3=m
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
-- 
2.2.0




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