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

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Message-ID: <Yjh4xzSWtvR+vqst@hirez.programming.kicks-ass.net>
Date:   Mon, 21 Mar 2022 14:08:23 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        mhiramat@...nel.org, rostedt@...dmis.org, ast@...nel.org,
        hjl.tools@...il.com, rick.p.edgecombe@...el.com, rppt@...nel.org,
        linux-toolchains@...r.kernel.org, Andrew.Cooper3@...rix.com,
        ndesaulniers@...gle.com
Subject: Re: linux-next: build warnings after merge of the tip tree

On Mon, Mar 21, 2022 at 02:04:05PM +0100, Peter Zijlstra wrote:
> On Mon, Mar 21, 2022 at 01:55:49PM +0100, Peter Zijlstra wrote:
> > On Mon, Mar 21, 2022 at 02:03:27PM +1100, Stephen Rothwell wrote:
> > > Hi all,
> > > 
> > > After merging the tip tree, today's linux-next build (x864 allmodconfig)
> > > produced these new warnings:
> > > 
> > > vmlinux.o: warning: objtool: arch_rethook_prepare()+0x55: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > > vmlinux.o: warning: objtool: arch_rethook_trampoline_callback()+0x3e: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > > vmlinux.o: warning: objtool: unwind_next_frame()+0x93e: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > > vmlinux.o: warning: objtool: unwind_next_frame()+0x5f2: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > > vmlinux.o: warning: objtool: unwind_next_frame()+0x4a7: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > > vmlinux.o: warning: objtool: __rethook_find_ret_addr()+0x81: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > > vmlinux.o: warning: objtool: __rethook_find_ret_addr()+0x90: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > > vmlinux.o: warning: objtool: rethook_trampoline_handler()+0x8c: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > > vmlinux.o: warning: objtool: rethook_trampoline_handler()+0x9b: relocation to !ENDBR: arch_rethook_trampoline+0x0
> > 
> > Hurmph, lemme go figure out where that code comes from, I've not seen
> > those.
> 
> Ahh, something tracing. I'll go do some patches on top of it.

Also, that x86 patch has never his x86@...nel.org and doesn't have an
ACK from any x86 person :-(((