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From: pgaikwad@nvidia.com (Prashant Gaikwad)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: fix psci power state pack
Date: Wed, 12 Feb 2014 16:12:47 +0530	[thread overview]
Message-ID: <1392201767.13619.12.camel@pgaikwad-dt2> (raw)
In-Reply-To: <20140212101946.GD13441@mudshark.cambridge.arm.com>

On Wed, 2014-02-12 at 15:49 +0530, Will Deacon wrote:
> On Wed, Feb 12, 2014 at 09:22:38AM +0000, Prashant Gaikwad wrote:
> > Values has to be shifted right to create pack.
> 
> NAK. This doesn't make any sense to me.
> 
> > Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com>
> > ---
> >  arch/arm64/kernel/psci.c |    6 +++---
> >  1 files changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
> > index 4f97db3..6e8f1df 100644
> > --- a/arch/arm64/kernel/psci.c
> > +++ b/arch/arm64/kernel/psci.c
> > @@ -87,11 +87,11 @@ static int psci_to_linux_errno(int errno)
> >  static u32 psci_power_state_pack(struct psci_power_state state)
> >  {
> >  	return	((state.id & PSCI_POWER_STATE_ID_MASK)
> > -			<< PSCI_POWER_STATE_ID_SHIFT)	|
> > +			>> PSCI_POWER_STATE_ID_SHIFT)	|
> >  		((state.type & PSCI_POWER_STATE_TYPE_MASK)
> > -			<< PSCI_POWER_STATE_TYPE_SHIFT)	|
> > +			>> PSCI_POWER_STATE_TYPE_SHIFT)	|
> 
> So for the type field, this becomes:
> 
>   (state.type & 0x1) >> 16

Ahhh, my bad. I got my mistake.

Thanks for the review Will!!

> 
> Are you sure?
> 
> Will

      reply	other threads:[~2014-02-12 10:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-12  9:22 [PATCH] arm64: fix psci power state pack Prashant Gaikwad
2014-02-12 10:19 ` Will Deacon
2014-02-12 10:42   ` Prashant Gaikwad [this message]

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