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SubjectRe: [PATCHv5 1/4] kbuild: Add build salt to the kernel and modules

Thanks for the update.

2018-07-04 8:34 GMT+09:00 Laura Abbott <>:
> The build id generated from --build-id can be generated in several different
> ways, with the default being the sha1 on the output of the linked file. For
> distributions, it can be useful to make sure this ID is unique, even if the
> actual file contents don't change. The easiest way to do this is to insert
> a section with some data.
> Add an ELF note to both the kernel and module which contains some data based
> off of a config option.
> Signed-off-by: Masahiro Yamada <>
> Signed-off-by: Laura Abbott <>
> ---
> v5: I used S-o-b here since the majority of the code was written
> already.

I think Suggested-by is good enough.
S-o-b is appended as a patch is passed from people to people.

Anyway, this looks good except one bike-shed.

> Please feel free to change the tag if you think it's not
> appropriate. I also tweaked this to take an ascii string instead of just
> a hex value since this makes things much easier on the distribution
> side.
> ---

> diff --git a/init/Kconfig b/init/Kconfig
> index 041f3a022122..8de789f40db9 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -107,6 +107,15 @@ config LOCALVERSION_AUTO
> which is done within the script "scripts/setlocalversion".)
> +config BUILD_SALT
> + string "Build ID Salt"
> + default "Linux"

How about empty string ""
for default?

Best Regards
Masahiro Yamada

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