linux-kernel - Re: [PATCH v2 07/25] powerpc32: refactor x_mapped_by_bats() and x_mapped_by

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Date:	Tue, 6 Oct 2015 16:02:56 +0200
From:	Christophe Leroy <christophe.leroy@....fr>
To:	Scott Wood <scottwood@...escale.com>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v2 07/25] powerpc32: refactor x_mapped_by_bats() and
 x_mapped_by_tlbcam() together



Le 29/09/2015 01:47, Scott Wood a écrit :
> On Tue, Sep 22, 2015 at 06:50:42PM +0200, Christophe Leroy wrote:
>> x_mapped_by_bats() and x_mapped_by_tlbcam() serve the same kind of
>> purpose, so lets group them into a single function.
>>
>> Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
>> ---
>> No change in v2
>>
>>   arch/powerpc/mm/pgtable_32.c | 33 ++++++++++++++++++++++++++-------
>>   1 file changed, 26 insertions(+), 7 deletions(-)
>>
>> diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
>> index 03a073a..3fd9083 100644
>> --- a/arch/powerpc/mm/pgtable_32.c
>> +++ b/arch/powerpc/mm/pgtable_32.c
>> @@ -67,6 +67,28 @@ extern unsigned long p_mapped_by_tlbcam(phys_addr_t pa);
>>   #define p_mapped_by_tlbcam(x)	(0UL)
>>   #endif /* HAVE_TLBCAM */
>>   
>> +static inline unsigned long p_mapped_by_other(phys_addr_t pa)
>> +{
>> +	unsigned long v;
>> +
>> +	v = p_mapped_by_bats(pa);
>> +	if (v /*&& p_mapped_by_bats(p+size-1)*/)
>> +		return v;
>> +
>> +	return p_mapped_by_tlbcam(pa);
>> +}
> Did you forget to remove that comment?
>
>
No I didn't, I though it was there for a reason, it has been there since 
2005.
Do you think I should remove it ?

Christophe
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