From: Borislav Petkov <bp@alien8.de>
To: Nick Desaulniers <ndesaulniers@google.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
x86@kernel.org, llvm@lists.linux.dev,
linux-sparse@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel test robot <lkp@intel.com>,
Nathan Chancellor <nathan@kernel.org>,
linux-toolchains@vger.kernel.org
Subject: Re: [PATCH] objtool: prefer memory clobber & %= to volatile & __COUNTER__
Date: Tue, 25 Jan 2022 19:49:57 +0100 [thread overview]
Message-ID: <YfBGVfk5jnHgC4UE@zn.tnic> (raw)
In-Reply-To: <CAKwvOdm+pnKb2PU7H5W1ks8eFd3DPEtN5kzjhnz5TLLwpBLOsA@mail.gmail.com>
On Mon, Jan 24, 2022 at 03:38:38PM -0800, Nick Desaulniers wrote:
> $ wget https://download.01.org/0day-ci/archive/20220119/202201190702.XNSXrMTK-lkp@intel.com/config
> -O .config
> $ make -j72 -s olddefconfig drivers/net/wireless/mac80211_hwsim.o
> drivers/net/wireless/mac80211_hwsim.o: warning: objtool:
> mac80211_hwsim_tx()+0x9aa: unreachable instruction
> $ gcc --version
> gcc (Debian 11.2.0-12) 11.2.0
Yap, I got mine with:
gcc (Debian 10.2.1-6) 10.2.1 20210110
but since you hit it with gcc11, I don't see why I won't hit it with
gcc10.
> :(
You said it.
> Let me see if I can come up with a reduced test case that I will
> report upstream to https://gcc.gnu.org/bugzilla/.
Sounds good.
Please send the bug # once you have that so that I can add myself to Cc.
Thx.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2022-01-25 18:50 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-14 1:05 [PATCH] objtool: prefer memory clobber & %= to volatile & __COUNTER__ Nick Desaulniers
2022-01-14 21:58 ` Nathan Chancellor
2022-01-16 13:32 ` Borislav Petkov
2022-01-18 19:22 ` Josh Poimboeuf
2022-01-18 23:01 ` Josh Poimboeuf
2022-01-18 23:33 ` Borislav Petkov
2022-01-19 0:03 ` Josh Poimboeuf
2022-01-19 10:01 ` Borislav Petkov
2022-01-24 23:26 ` Nick Desaulniers
2022-01-24 23:38 ` Nick Desaulniers
2022-01-25 18:49 ` Borislav Petkov [this message]
2022-01-25 23:31 ` Segher Boessenkool
2022-01-26 0:59 ` Nick Desaulniers
2022-01-26 2:12 ` Nick Desaulniers
2022-01-26 11:13 ` Segher Boessenkool
2022-01-31 20:45 ` Nick Desaulniers
2022-01-31 22:13 ` Segher Boessenkool
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