[U-Boot] Many unused variable warnings

[Masahiro Yamada]

Hi.

The recent GCC versions catch unused variables.

This makes build testing noisy.

Of course, we could use old GCC when running Buildman,
but it would be nicer to eliminate the root causes.

I got the following when I recently ran Buildman with arm/aarch64 GCC 6.1.


drivers/usb/gadget/dwc2_udc_otg.c was fixed lately,
but there are still many warnings to be fixed.

Board maintainers, please check your own boards.
Or, somebody who volunteers to fix them?  Thanks!




w+../arch/arm/cpu/arm926ejs/mxs/spl_boot.c:44:26: warning:
'iomux_boot' defined but not used [-Wunused-const-variable=]
w+../common/cli_readline.c:20:21: warning: 'tab_seq' defined but not
used [-Wunused-const-variable=]
w+../common/cli_readline.c:19:19: warning: 'erase_seq' defined but not
used [-Wunused-const-variable=]
w+../drivers/usb/gadget/dwc2_udc_otg.c:72:19: warning: 'driver_desc'
defined but not used [-Wunused-const-variable=]
w+../arch/arm/mach-omap2/omap4/hw_data.c:136:3: warning:
'abe_dpll_params_sysclk_196608khz' defined but not used
[-Wunused-const-variable=]
w+../drivers/clk/rockchip/clk_rk3288.c:135:29: warning:
'cpll_init_cfg' defined but not used [-Wunused-const-variable=]
w+../drivers/clk/rockchip/clk_rk3288.c:134:29: warning:
'gpll_init_cfg' defined but not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:226:33: warning: 'dual_0S' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:213:33: warning: 'dual_S0' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:196:33: warning: 'dual_0D' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:179:33: warning: 'dual_D0' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:162:33: warning: 'dual_SS' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:140:33: warning: 'dual_SD' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:119:33: warning: 'dual_DS' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:92:33: warning: 'dual_DD' defined but
not used [-Wunused-const-variable=]
w+../drivers/usb/gadget/ether.c:501:17: warning: 'mdlm_detail_desc'
defined but not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:80:33: warning: 'single_S' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:63:33: warning: 'single_D' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:36:33: warning: 'single_Q' defined but
not used [-Wunused-const-variable=]
w+../board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c:228:29:
warning: 'usdhc1_pads' defined but not used [-Wunused-const-variable=]
w+../drivers/net/eepro100.c:210:19: warning: 'i82557_config_cmd'
defined but not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:456:33: warning: 'dual_0S' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:443:33: warning: 'dual_S0' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:426:33: warning: 'dual_0D' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:409:33: warning: 'dual_D0' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:392:33: warning: 'dual_SS' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:370:33: warning: 'dual_SD' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:349:33: warning: 'dual_DS' defined but
not used [-Wunused-const-variable=]
w+../drivers/ddr/fsl/options.c:322:33: warning: 'dual_DD' defined but
not used [-Wunused-const-variable=]
w+../arch/arm/mach-omap2/omap5/hw_data.c:204:33: warning:
'abe_dpll_params_32k_196608khz' defined but not used
[-Wunused-const-variable=]
w+../arch/arm/mach-omap2/omap5/hw_data.c:131:4: warning:
'core_dpll_params_2128mhz_ddr266_es2' defined but not used
[-Wunused-const-variable=]
w+../arch/arm/mach-omap2/omap5/hw_data.c:120:4: warning:
'core_dpll_params_2128mhz_ddr266' defined but not used
[-Wunused-const-variable=]
w+../arch/arm/mach-omap2/omap5/hw_data.c:65:33: warning:
'mpu_dpll_params_499mhz' defined but not used
[-Wunused-const-variable=]
w+../arch/arm/mach-omap2/omap5/hw_data.c:54:33: warning:
'mpu_dpll_params_400mhz' defined but not used
[-Wunused-const-variable=]
w+../arch/arm/mach-omap2/omap5/hw_data.c:32:33: warning:
'mpu_dpll_params_1_5ghz' defined but not used
[-Wunused-const-variable=]
w+../board/phytec/pcm058/pcm058.c:136:29: warning: 'gpios_pads'
defined but not used [-Wunused-const-variable=]
w+../board/phytec/pcm058/pcm058.c:171:29: warning: 'usdhc4_pads'
defined but not used [-Wunused-const-variable=]
w+../board/phytec/pcm058/pcm058.c:112:29: warning: 'nfc_pads' defined
but not used [-Wunused-const-variable=]
w+../board/bachmann/ot1200/ot1200.c:276:29: warning: 'pwm_pad' defined
but not used [-Wunused-const-variable=]
w+../arch/arm/mach-omap2/omap5/hw_data.c:193:3: warning:
'abe_dpll_params_sysclk_196608khz' defined but not used
[-Wunused-const-variable=]
w+../drivers/video/ld9040.c:69:28: warning: 'SEQ_SLPIN' defined but
not used [-Wunused-const-variable=]
w+../drivers/video/ld9040.c:49:28: warning: 'SEQ_APON' defined but not
used [-Wunused-const-variable=]
w+../drivers/video/ld9040.c:25:28: warning: 'SEQ_TEMP_SWIRE' defined
but not used [-Wunused-const-variable=]
w+../drivers/video/ld9040.c:13:28: warning: 'SEQ_SWRESET' defined but
not used [-Wunused-const-variable=]
w+../board/toradex/colibri_imx7/colibri_imx7.c:101:29: warning:
'usdhc3_emmc_pads' defined but not used [-Wunused-const-variable=]
w+../arch/arm/mach-rockchip/rk3036-board-spl.c:19:34: warning: 'grf'
defined but not used [-Wunused-const-variable=]
w+../board/congatec/cgtqmx6eval/cgtqmx6eval.c:84:29: warning:
'usdhc3_pads' defined but not used [-Wunused-const-variable=]
w+../board/congatec/cgtqmx6eval/cgtqmx6eval.c:74:29: warning:
'usdhc2_pads' defined but not used [-Wunused-const-variable=]
w+../drivers/usb/gadget/at91_udc.c:1506:35: warning:
'at91sam9263_udc_caps' defined but not used [-Wunused-const-variable=]
w+../drivers/usb/gadget/at91_udc.c:1389:35: warning:
'at91rm9200_udc_caps' defined but not used [-Wunused-const-variable=]
w+../board/gateworks/gw_ventana/common.c:140:29: warning:
'gwproto_gpio_pads' defined but not used [-Wunused-const-variable=]


-- 
Best Regards
Masahiro Yamada