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Date:   Tue, 21 Jul 2020 21:11:29 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     Ira Weiny <ira.weiny@intel.com>
Cc:     Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        Andy Lutomirski <luto@kernel.org>,
        Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org,
        Dan Williams <dan.j.williams@intel.com>,
        Vishal Verma <vishal.l.verma@intel.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Fenghua Yu <fenghua.yu@intel.com>, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org,
        linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
        linux-kselftest@vger.kernel.org
Subject: Re: [PATCH RFC V2 17/17] x86/entry: Preserve PKRS MSR across
 exceptions
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On Tue, Jul 21, 2020 at 11:01:34AM -0700, Ira Weiny wrote:
> On Fri, Jul 17, 2020 at 11:30:41AM +0200, Peter Zijlstra wrote:
> > On Fri, Jul 17, 2020 at 12:20:56AM -0700, ira.weiny@intel.com wrote:
> > > +static void noinstr idt_save_pkrs(idtentry_state_t state)
> > 
> > noinstr goes in the same place you would normally put inline, that's
> > before the return type, not after it.
> >
> 
> Sorry about that.  But that does not look to be consistent.
> 
> 10:57:35 > git grep 'noinstr' arch/x86/entry/common.c
> ...
> arch/x86/entry/common.c:idtentry_state_t noinstr idtentry_enter(struct pt_regs *regs)
> arch/x86/entry/common.c:void noinstr idtentry_exit(struct pt_regs *regs, idtentry_state_t state)
> arch/x86/entry/common.c:void noinstr idtentry_enter_user(struct pt_regs *regs)
> arch/x86/entry/common.c:void noinstr idtentry_exit_user(struct pt_regs *regs)
> ...
> 
> Are the above 'wrong'?  Is it worth me sending a patch?

I think I already fixed all those, please check tip/master.