Hi Pratyush, Le 17/10/2023 à 12:40, Pratyush Brahma a écrit : > Hi Daniel > > We have a usecase which requires this patch necessarily. For android > usecases, we have two different build variants > differentiated by defconfigs - production and debug. However, we only > have a single dts for both these variants. > > > We want to enable certain features like page owner and slub debug which > require cmdline params in addition to > their respective configs to be enabled. Enabling page_owner and > slub_debug options in dts file enables it for both > production and debug variants. These features have significant memory > overhead which are undesirable for > our production environment. However, these are necessary for debug > environment to enable internal testing and debug. > Currently, android uses out-of-tree configs like CONFIG_CMDLINE_EXTEND > to do so in gki_defconfig [1]. > One option is to use CMDLINE_FORCE option which would enable these > cmdline params but this disables the bootloader to add > any additional cmdline params which may be necessary. > > > For such a usecase, the CONFIG_CMDLINE_PREPEND seems to be quite useful > as it would help to stitch bootloader > and the desired build variant's configs together. Can you please help to > merge this patch?
As far as I remember, Daniel's proposal had some weaknesses that were never addressed. At that time I proposed an alternative series that was addressing most weaknesses, and my series was considered more mature that Daniel's one by several maintainers. But I never got enough feedback on it in order to finalise and merge it. Could you have a look at it and tell if it fits your need ? See https://patchwork.ozlabs.org/project/linuxppc-dev/list/?state=*&series=237158 If it does, I can then rebase it on latest kernel and restart discussions in order to get it merged. Thanks Christophe > > > [1] > https://android.googlesource.com/kernel/common/+/refs/heads/android14-6.1-lts/arch/arm64/configs/gki_defconfig#62 >