linux-kernel - Re: missing patch

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Date:   Mon, 1 Apr 2019 18:58:53 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Evalds Iodzevics <evalds.iodzevics@...il.com>
Cc:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: missing patch

On Mon, Apr 01, 2019 at 06:06:29PM +0200, Greg KH wrote:
> On Sat, Mar 30, 2019 at 06:13:16PM +0200, Evalds Iodzevics wrote:
> > Hi back in the December of 2016 there was commit
> > "1c52d859cb2d417e7216d3e56bb7fea88444cec9"
> > 
> > witch was followed shortly by  "c198b121b1a1d7a7171770c634cd49191bac4477"
> > 
> > Unfortunately only the first commit was later included in long-term kernel
> > branches such as 4.4 and 4.9 witch left some of microcode functionality
> > broken on 32 bit systems
> > 
> > I guess it should be easily fixed by including
> > "c198b121b1a1d7a7171770c634cd49191bac4477" in those branches
> 
> Now queued up, thanks!

Hm, no, it causes a bunch of build warnings that look like things are
about to break:
arch/x86/kernel/alternative.o: warning: objtool: do_sync_core()+0x1b: unsupported instruction in callable function
arch/x86/kernel/alternative.o: warning: objtool: text_poke_early()+0x83: unsupported instruction in callable function
arch/x86/kernel/alternative.o: warning: objtool: apply_alternatives()+0x366: unsupported instruction in callable function
arch/x86/kernel/alternative.o: warning: objtool: text_poke()+0x196: unsupported instruction in callable function

So I'm going to drop this patch from both trees now.  Can you provide a
working backported version, or find what else needs to be applied as
well for this patch?

thanks,

greg k-h