linux-kernel - Re: [PATCH] objtool: Make 'sec-address' always on

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Message-ID: <20230626032036.m7vdthsguezm52wa@treble>
Date:   Sun, 25 Jun 2023 20:20:36 -0700
From:   Josh Poimboeuf <jpoimboe@...nel.org>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     kernel test robot <lkp@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "oe-kbuild-all@...ts.linux.dev" <oe-kbuild-all@...ts.linux.dev>
Subject: Re: [PATCH] objtool: Make 'sec-address' always on

On Sat, Jun 24, 2023 at 08:30:48AM +0000, Christophe Leroy wrote:
> >>> vmlinux.o: warning: objtool: ibt_selftest+0x14 (.text+0x92b54): sibling call from callable instruction with modified stack frame
> >     vmlinux.o: warning: objtool: .altinstr_replacement+0x19a4: redundant UACCESS disable
> >     vmlinux.o: warning: objtool: iovec_from_user.part.0+0xb1 (.text+0x1c47761): call to copy_iovec_from_user.part.0() with UACCESS enabled
> >     vmlinux.o: warning: objtool: ibt_selftest+0x1e (.text+0x92b5e): return with modified stack frame
> > 
> 
> I can't really see any link between that warning and the changes in the 
> patch.

I suspect it's a pre-existing warning, but because the patch made a
change to the default formatting (adding .text+off), it looks like a new
warning to the bots.

-- 
Josh