linux-kernel - Re: linux-next: build failure after merge of the tip tree

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Date:   Tue, 15 Mar 2022 16:37:47 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the tip tree

Hi all,

On Tue, 15 Mar 2022 16:23:27 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> On Tue, 15 Mar 2022 14:06:44 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > After merging the irqchip tree, today's linux-next build (x86_64
> > allmodconfig) failed like this:
> > 
> > arch/x86/kernel/cpuid.o: warning: objtool: file already has .orc_unwind section, skipping
> > make[3]: *** [/home/sfr/next/next/scripts/Makefile.modfinal:61: arch/x86/kernel/cpuid.ko] Error 255
> > arch/x86/kernel/msr.o: warning: objtool: file already has .orc_unwind section, skipping
> > make[3]: *** [/home/sfr/next/next/scripts/Makefile.modfinal:61: arch/x86/kernel/msr.ko] Error 255
> > arch/x86/events/intel/intel-uncore.o: warning: objtool: file already has .retpoline_sites, skipping
> > arch/x86/events/intel/intel-uncore.o: warning: objtool: file already has .ibt_endbr_seal, skipping
> > arch/x86/events/intel/intel-uncore.o: warning: objtool: file already has .orc_unwind section, skipping
> > make[3]: *** [/home/sfr/next/next/scripts/Makefile.modfinal:61: arch/x86/events/intel/intel-uncore.ko] Error 255
> > 
> > I couldn't see anything int the irqchip tree that would cause this,
> > so I deleted my object directory and redid the build and this time
> > it succeeded.
> > 
> > I suspect some change in the tip tree has brought this on (it is merged
> > just a bit before the irqchip tree).  
> 
> This time after the merging usb trees:
> 
> drivers/phy/qualcomm/phy-qcom-usb-hs.o: warning: objtool: file already has .orc_unwind section, skipping
> make[3]: *** [scripts/Makefile.modfinal:61: drivers/phy/qualcomm/phy-qcom-usb-hs.ko] Error 255
> drivers/phy/qualcomm/phy-qcom-usb-hsic.o: warning: objtool: file already has .orc_unwind section, skipping
> make[3]: *** [scripts/Makefile.modfinal:61: drivers/phy/qualcomm/phy-qcom-usb-hsic.ko] Error 255
> 
> I just removed the drivers/phy/qualcomm directory from the object tree
> and rebuilt.
> 
> Then got this:
> 
> drivers/phy/ti/phy-tusb1210.o: warning: objtool: file already has .orc_unwind section, skipping
> make[3]: *** [/home/sfr/next/next/scripts/Makefile.modfinal:61: drivers/phy/ti/phy-tusb1210.ko] Error 255
> 
> So removed the drivers/phy/ti directory and rebuilt and the build
> succeeded.
> 
> I assume that something is being left around or reprocessed when it
> should not be.

Maybe commit

  8856dadf7ad3 ("Kbuild: Allow whole module objtool runs")

?

-- 
Cheers,
Stephen Rothwell

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