linux-kernel - Re: [PATCH] fs/proc: add compile time info

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Message-ID: <c8577c14a1663cbdea70534c086c247c@dev.tdt.de>
Date:   Mon, 12 Sep 2022 11:42:43 +0200
From:   Florian Eckert <fe@....tdt.de>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux FS-devel Mailing List <linux-fsdevel@...r.kernel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Eckert.Florian@...glemail.com
Subject: Re: [PATCH] fs/proc: add compile time info

Hello Masahiro,

thanks for your feedback.

> https://patchwork.kernel.org/project/linux-kbuild/patch/20220828024003.28873-6-masahiroy@kernel.org/
> lands, nobody cannot reference KBUILD_BUILD_TIMESTAMP,
> then this whack-a-mole game will end.

I was not aware of that problem. Thanks for the link.

I understood that this is a bad idea to create the timestamp for proc 
like this!
But how does it look in principle to offer the build timestamp in proc 
for reading?
You have only made your point about creating the timestamp but not about 
reading it out via the proc directory.

So far the timestamp is only readable as a string via dmesg.

Best regards

Florian