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SubjectRe: [PATCH] merge_config.sh: Add option for allmodconfig
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On 10/12/2019 12:09, John Garry wrote:

Hi Masahiro,

Could you please consider this patch?

Thanks,
John

> Recently there has been some work in reporting and fixing bugs in booting
> an allmodconfig kernel - here are a few examples:
>
> https://lore.kernel.org/linux-edac/304df85b-8b56-b77e-1a11-aa23769f2e7c@huawei.com/T/#t
> https://lore.kernel.org/linux-ide/bdf02e03-86a1-3d35-2908-28187f504495@huawei.com/T/#t
> https://lore.kernel.org/netdev/CADYN=9LCPfbpwdTWKw03B22-y3Text=RWXW7XP7wJBHYsMOgrA@mail.gmail.com/
> https://sourceforge.net/p/openipmi/mailman/message/36871567/
>
> If we want to boot an allmodconfig kernel we may still want to force some
> loadable modules built-in, like UART drivers. Or just still turn off some
> configs.
>
> So add an option to add add fragments to an allmodconfig kernel.
>
> Signed-off-by: John Garry <john.garry@huawei.com>
>
> diff --git a/scripts/kconfig/merge_config.sh b/scripts/kconfig/merge_config.sh
> index 63c8565206a4..01697fb6dfbe 100755
> --- a/scripts/kconfig/merge_config.sh
> +++ b/scripts/kconfig/merge_config.sh
> @@ -23,6 +23,7 @@ clean_up() {
> usage() {
> echo "Usage: $0 [OPTIONS] [CONFIG [...]]"
> echo " -h display this help text"
> + echo " -a use allmodconfig instead of alldefconfig"
> echo " -m only merge the fragments, do not execute the make command"
> echo " -n use allnoconfig instead of alldefconfig"
> echo " -r list redundant entries when merging fragments"
> @@ -41,6 +42,11 @@ CONFIG_PREFIX=${CONFIG_-CONFIG_}
>
> while true; do
> case $1 in
> + "-a")
> + ALLTARGET=allmodconfig
> + shift
> + continue
> + ;;
> "-n")
> ALLTARGET=allnoconfig
> shift
> @@ -171,6 +177,7 @@ fi
>
> # Use the merged file as the starting point for:
> # alldefconfig: Fills in any missing symbols with Kconfig default
> +# allmodconfig: Fills in any missing symbols with =m when loadable
> # allnoconfig: Fills in any missing symbols with # CONFIG_* is not set
> make KCONFIG_ALLCONFIG=$TMP_FILE $OUTPUT_ARG $ALLTARGET
>
>

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