linux-kernel - Re: [PATCH v9 44/51] selftest/vm: powerpc implementation for generic abstraction

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Date:   Fri, 10 Nov 2017 09:36:56 -0200
From:   Breno Leitao <leitao@...ian.org>
To:     Ram Pai <linuxram@...ibm.com>
Cc:     mpe@...erman.id.au, mingo@...hat.com, akpm@...ux-foundation.org,
        corbet@....net, arnd@...db.de, linux-arch@...r.kernel.org,
        ebiederm@...ssion.com, linux-doc@...r.kernel.org, x86@...nel.org,
        dave.hansen@...el.com, linux-kernel@...r.kernel.org,
        mhocko@...nel.org, linux-mm@...ck.org, paulus@...ba.org,
        aneesh.kumar@...ux.vnet.ibm.com, linux-kselftest@...r.kernel.org,
        bauerman@...ux.vnet.ibm.com, linuxppc-dev@...ts.ozlabs.org,
        khandual@...ux.vnet.ibm.com
Subject: Re: [PATCH v9 44/51] selftest/vm: powerpc implementation for generic
 abstraction

Hi Ram,

On Thu, Nov 09, 2017 at 03:37:46PM -0800, Ram Pai wrote:
> On Thu, Nov 09, 2017 at 04:47:15PM -0200, Breno Leitao wrote:
> > On Mon, Nov 06, 2017 at 12:57:36AM -0800, Ram Pai wrote:
> > > @@ -206,12 +209,14 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext)
> > >  
> > >  	trapno = uctxt->uc_mcontext.gregs[REG_TRAPNO];
> > >  	ip = uctxt->uc_mcontext.gregs[REG_IP_IDX];
> > > -	fpregset = uctxt->uc_mcontext.fpregs;
> > > -	fpregs = (void *)fpregset;
> > 
> > Since you removed all references for fpregset now, you probably want to
> > remove the declaration of the variable above.
> 
> fpregs is still needed.

Right, fpregs is still needed, but not fpregset. Every reference for this
variable was removed with your patch.

Grepping this variable identifier on a tree with your patches, I see:

 $ grep fpregset protection_keys.c 
 fpregset_t fpregset;