linux-kernel - Re: [PATCH v2 1/1] powerpc/pseries/hotplug-memory.c: Change rc variable to bool

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Date:   Thu, 19 Sep 2019 22:57:04 -0300
From:   Leonardo Bras <leonardo@...ux.ibm.com>
To:     Michael Ellerman <mpe@...erman.id.au>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Cc:     David Hildenbrand <david@...hat.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Pavel Tatashin <pavel.tatashin@...rosoft.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Oscar Salvador <osalvador@...e.de>,
        Nathan Fontenot <nfont@...ux.vnet.ibm.com>,
        Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
        YueHaibing <yuehaibing@...wei.com>, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v2 1/1] powerpc/pseries/hotplug-memory.c: Change rc
 variable to bool

Hello Michael,

Any feedback on this patch?

Best regards,


On Fri, 2019-08-02 at 15:45 +0200, David Hildenbrand wrote:
> On 02.08.19 15:39, Leonardo Bras wrote:
> > Changes the return variable to bool (as the return value) and
> > avoids doing a ternary operation before returning.
> > 
> > Signed-off-by: Leonardo Bras <leonardo@...ux.ibm.com>
> > ---
> > Changes in v2:
> >   - Restore previous and-ing logic on rc.
> > 
> >  arch/powerpc/platforms/pseries/hotplug-memory.c | 6 +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
> > index 8e700390f3d6..c126b94d1943 100644
> > --- a/arch/powerpc/platforms/pseries/hotplug-memory.c
> > +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
> > @@ -338,7 +338,7 @@ static int pseries_remove_mem_node(struct device_node *np)
> >  static bool lmb_is_removable(struct drmem_lmb *lmb)
> >  {
> >  	int i, scns_per_block;
> > -	int rc = 1;
> > +	bool rc = true;
> >  	unsigned long pfn, block_sz;
> >  	u64 phys_addr;
> >  
> > @@ -363,11 +363,11 @@ static bool lmb_is_removable(struct drmem_lmb *lmb)
> >  		if (!pfn_present(pfn))
> >  			continue;
> >  
> > -		rc &= is_mem_section_removable(pfn, PAGES_PER_SECTION);
> > +		rc = rc && is_mem_section_removable(pfn, PAGES_PER_SECTION);
> >  		phys_addr += MIN_MEMORY_BLOCK_SIZE;
> >  	}
> >  
> > -	return rc ? true : false;
> > +	return rc;
> >  }
> >  
> >  static int dlpar_add_lmb(struct drmem_lmb *);
> > 
> 
> Yeah, why not
> 
> Reviewed-by: David Hildenbrand <david@...hat.com>
> 

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