linux-kernel - Re: [PATCH] x86: enable dead code and data elimination

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Message-Id: <1625185686.surevoro33.astroid@bobo.none>
Date:   Fri, 02 Jul 2021 10:30:02 +1000
From:   Nicholas Piggin <npiggin@...il.com>
To:     Rui Salvaterra <rsalvaterra@...il.com>, tobias.karnat@...ondis.de
Cc:     linux-arch@...r.kernel.org, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org, sedat.dilek@...il.com, x86@...nel.org
Subject: Re: [PATCH] x86: enable dead code and data elimination

Excerpts from Rui Salvaterra's message of July 1, 2021 8:00 pm:
> Hi, Tobias,
> 
> On Thu, 1 Jul 2021 at 10:22, <tobias.karnat@...ondis.de> wrote:
>>
>> Hello,
>>
>> I have found your patch to enable x86 dead code and data elimination on the openwrt-devel mailing list and I wonder if you can sent it upstream to the kernel mailing list?
> 
> As I quoted, mine is an adaptation of Nicholas Piggin's original
> patch, basically a forward-port to 5.4 (5.10 in my OpenWrt tree [1]).
> Since the original proposal has been sent upstream and hasn't been
> merged, there are probably good reasons for it (even though it works
> perfectly for my use case). Nicholas, any idea on why your original
> patch [2] hasn't been merged?

Not sure, I didn't do much testing or try too hard to get it upstream. 
If you have found it works and is helpful I don't see why it couldn't
be merged. Feel free to submit it.

Thanks,
Nick