Re: [PATCH kernel] kbuild: get rid of unwanted "+" when CONFIG_LOCALVERSION is set

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On 20/9/23 23:30, Alexey Kardashevskiy wrote:

On 20/9/23 21:59, Masahiro Yamada wrote:
On Wed, Sep 20, 2023 at 10:56 AM Alexey Kardashevskiy <aik@xxxxxxx> wrote:

The scripts/setlocalversion script correctly tries not adding "+" when
CONFIG_LOCALVERSION is defined.

I am afraid you are misunderstanding the script.

Possibly :) I should have read of "+set"... sorry :-/ Thanks for spending time looking at this.

CONFIG_LOCALVERSION and the "+" sign is unrelated.

How come?

scripts/setlocalversion -> if [ "${LOCALVERSION+set}" != "set" ] -> scm_version --short -> echo "+".

Where is that LOCALVERSION supposed to come from, and when? Is not LOCALVERSION related to CONFIG_LOCALVERSION?

However, instead of grepping for it
(as it is done for CONFIG_LOCALVERSION_AUTO=y), it relies on LOCALVERSION
set in the shell which is not.

Export LOCALVERSION so scripts/setlocalversion could see it and not add
unwanted "+" at the end of the kernelrelease.

Signed-off-by: Alexey Kardashevskiy <aik@xxxxxxx>


So, scripts/setlocalversion will always see
defined LOCALVERSION.

With your patch, LOCALVERSION would be set to an empty value,
which would make the following condition always false.

elif [ "${LOCALVERSION+set}" != "set" ]; then


Your patch is equivalent to deleting
line 175-183 of scripts/setlocalversion.

Of course, that is wrong and unacceptable.

Ok. What is the right way of getting rid of the "+"? Thanks,


make LOCALVERSION="" ...
seems to be the only way, is that right? I thought CONFIG_LOCALVERSION is good enough for not having "+", hmm.


--
Alexey




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