linux-kernel - linux-next: build warnings in Linus' tree

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Message-ID: <20200908091102.4c2d7b37@canb.auug.org.au>
Date:   Tue, 8 Sep 2020 09:11:02 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
        "H. Peter Anvin" <hpa@...or.com>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: linux-next: build warnings in Linus' tree

Hi all,

Building Linus' tree, today's linux-next build (x86_64 allmodconfig)
produced these warnings:

arch/x86/kernel/cpu/mce/core.o: warning: objtool: mce_panic()+0x2a3: unreachable instruction
net/core/skbuff.o: warning: objtool: skb_push.cold()+0x1b: unreachable instruction
arch/x86/mm/mmio-mod.o: warning: objtool: pre()+0x21a: unreachable instruction
arch/x86/kvm/vmx/vmx.o: warning: objtool: vmx_handle_exit_irqoff()+0x142: unreachable instruction
kernel/exit.o: warning: objtool: __x64_sys_exit_group()+0x26: unreachable instruction
kernel/cred.o: warning: objtool: get_task_cred.cold()+0x19: unreachable instruction
drivers/misc/sgi-gru/grukservices.o: warning: objtool: gru_wait_abort_proc()+0x97: unreachable instruction
drivers/scsi/pcmcia/aha152x_core.o: warning: objtool: is_complete()+0x6c6: unreachable instruction
drivers/message/fusion/mptbase.o: warning: objtool: mpt_SoftResetHandler()+0x4a5: unreachable instruction
drivers/scsi/aic7xxx/aic79xx_core.o: warning: objtool: ahd_intr()+0x2a9: unreachable instruction
drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.o: warning: objtool: otx2_sq_append_tso()+0xab6: unreachable instruction
fs/btrfs/extent_io.o: warning: objtool: __set_extent_bit.cold()+0x12: unreachable instruction
fs/btrfs/backref.o: warning: objtool: btrfs_backref_finish_upper_links()+0x818: unreachable instruction
fs/btrfs/relocation.o: warning: objtool: update_backref_cache.isra.0()+0x3bf: unreachable instruction
drivers/atm/horizon.o: warning: objtool: rx_data_av_handler()+0x452: unreachable instruction

I have not idea what caused them.

-- 
Cheers,
Stephen Rothwell

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