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authorOvidiu Panait <ovidiu.panait@windriver.com>2020-12-23 15:08:51 +0200
committerSteve Sakoman <steve@sakoman.com>2021-06-08 04:32:17 -1000
commit2246b0d7a71c69eb2e89c55991d1387069895466 (patch)
tree48c086807f99dfbcbb47e784adcabfebe1cdb707 /meta/recipes-kernel/linux/linux-yocto-rt_5.4.bb
parent14eec2f7c3bbb36de8198989bf772135aa117963 (diff)
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kernel-devicetree: Introduce KERNEL_DTC_FLAGS to pass dtc flags
Currently DTC_FLAGS kernel makefile parameter can be specified directly on the command line by adding it to KERNEL_EXTRA_ARGS. However, this prevents scripts/Makefile.lib logic from appending flags that silence dtc warnings (all assignments done from within a makefile, to a variable specified on the command line, are ignored). Because of this, the do_compile log is cluttered with dtc warnings that should only be printed when compiling with W="123": ... /soc: node has a reg or ranges property, but no unit name /soc/gpu: missing or empty reg/ranges property /soc/firmware/gpio: missing or empty reg/ranges property ... To fix this, introduce the dedicated KERNEL_DTC_FLAGS variable to hold dtc flags and export DTC_FLAGS in the environment before generating the dtbs (make allows "+=" operations on variables that come from the environment, so the warnings are silenced properly). Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org> (cherry picked from commit 063b5de86624a42b0aa784db6dddc7552a6dee7f) Signed-off-by: Steve Sakoman <steve@sakoman.com>
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