From: Peter Zijlstra <peterz@infradead.org>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>,
David Woodhouse <dwmw2@infradead.org>,
linux-kernel@vger.kernel.org, Dave Hansen <dave.hansen@intel.com>,
Ashok Raj <ashok.raj@intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Tim Chen <tim.c.chen@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Greg KH <gregkh@linuxfoundation.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Andi Kleen <ak@linux.intel.com>,
Arjan Van De Ven <arjan.van.de.ven@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Jun Nakajima <jun.nakajima@intel.com>,
Asit Mallick <asit.k.mallick@intel.com>
Subject: Re: [PATCH 2/4] objtool: Implement jump_assert for _static_cpu_has()
Date: Mon, 15 Jan 2018 21:15:45 +0100 [thread overview]
Message-ID: <20180115201545.GO3397@worktop> (raw)
In-Reply-To: <20180115191151.zmnuxymdjtp5qkvm@treble>
On Mon, Jan 15, 2018 at 01:11:51PM -0600, Josh Poimboeuf wrote:
> Well, to clarify, it would solve _some_ of the problem. Maybe even most
> of the problem. We'd still need to special-case jump labels in objtool
> (like in 1/4), but that's probably not a big deal.
>
> So, contradicting my previous answer here... yes, it would help.
OK, saves me from having to argue otherwise. My argument would've been
that jump labels are fully described and don't need further annotation.
Yes, Boris' proposal would certainly help with the alternative stuff.
next prev parent reply other threads:[~2018-01-15 20:15 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-15 16:44 [PATCH 0/4] objtool validation of static branches Peter Zijlstra
2018-01-15 16:44 ` [PATCH 1/4] objtool: Implement base jump_assert support Peter Zijlstra
2018-01-15 17:39 ` Josh Poimboeuf
2018-01-15 18:00 ` Peter Zijlstra
2018-01-15 16:44 ` [PATCH 2/4] objtool: Implement jump_assert for _static_cpu_has() Peter Zijlstra
2018-01-15 18:04 ` Josh Poimboeuf
2018-01-15 18:12 ` Peter Zijlstra
2018-01-15 18:34 ` Josh Poimboeuf
2018-01-15 18:59 ` Borislav Petkov
2018-01-15 19:08 ` Josh Poimboeuf
2018-01-15 19:11 ` Josh Poimboeuf
2018-01-15 19:15 ` Borislav Petkov
2018-01-15 20:15 ` Peter Zijlstra [this message]
2018-01-15 20:30 ` Josh Poimboeuf
2018-01-15 16:44 ` [PATCH 3/4] x86/jump_label: Implement arch_static_assert() Peter Zijlstra
2018-01-15 17:22 ` Josh Poimboeuf
2018-01-15 17:41 ` David Woodhouse
2018-01-15 17:58 ` Peter Zijlstra
2018-01-15 18:28 ` Josh Poimboeuf
2018-01-15 16:44 ` [PATCH 4/4] x86: Reindent _static_cpu_has Peter Zijlstra
2018-01-15 17:15 ` Josh Poimboeuf
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