linux-kernel - Re: [PATCH] power_supply: Remove capacity

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Message-Id: <20080206163656.02cfd170.akpm@linux-foundation.org>
Date:	Wed, 6 Feb 2008 16:36:56 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	cbouatmailru@...il.com
Cc:	cascardo@...aslivre.org, linux-kernel@...r.kernel.org,
	dwmw2@...radead.org, dilinger@...ian.org
Subject: Re: [PATCH] power_supply: Remove capacity_level from list of sysfs
 attributes

On Thu, 7 Feb 2008 03:02:06 +0300
Anton Vorontsov <cbouatmailru@...il.com> wrote:

> On Wed, Feb 06, 2008 at 01:56:04PM -0800, Andrew Morton wrote:
> > On Wed, 6 Feb 2008 08:50:18 -0200
> > Thadeu Lima de Souza Cascardo <cascardo@...aslivre.org> wrote:
> > 
> > > On Wed, Feb 06, 2008 at 12:53:12AM -0800, Andrew Morton wrote:
> > > > On Tue, 5 Feb 2008 14:13:36 -0200 Thadeu Lima de Souza Cascardo <cascardo@...aslivre.org> wrote:
> > > > 
> > > > > ---
> > > > >  drivers/power/power_supply_sysfs.c |    1 -
> > > > >  1 files changed, 0 insertions(+), 1 deletions(-)
> > > > > 
> > > > > diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
> > > > > index d482484..13399d1 100644
> > > > > --- a/drivers/power/power_supply_sysfs.c
> > > > > +++ b/drivers/power/power_supply_sysfs.c
> > > > > @@ -106,7 +106,6 @@ static struct device_attribute power_supply_attrs[] = {
> > > > >  	POWER_SUPPLY_ATTR(energy_now),
> > > > >  	POWER_SUPPLY_ATTR(energy_avg),
> > > > >  	POWER_SUPPLY_ATTR(capacity),
> > > > > -	POWER_SUPPLY_ATTR(capacity_level),
> > > > >  	POWER_SUPPLY_ATTR(temp),
> > > > >  	POWER_SUPPLY_ATTR(temp_ambient),
> > > > >  	POWER_SUPPLY_ATTR(time_to_empty_now),
> > > > 
> > > > What is the reason for making this change?
> > > 
> > > Sorry. The following commit is the reason for this patch.
> > > 
> > > It removes CAPACITY_LEVEL from every other code, leaving the array with
> > > sysfs attributes with one more entry than the number of enums in
> > > power_supply.h. This leads to some attributes containing the value of
> > > the attribute right after it. For example, temp_ambient would have the
> > > value of time_to_empty_now. In my case, I had time_to_full_avg have the
> > > value which should be in model_name, when the former was usually empty.
> > > 
> > 
> > OK, thanks, I think I have enough material there to put together the final
> > patch.
> > 
> > Next time, please do cc the author of the change which you're fixing.  And
> > please do reply-to-all when working with kernel people, thanks.
> > 
> > I tagged this fix as needed-in-2.6.24.x as well.
> 
> Nope, I don't think 2.6.24.x needs this fix. Commit 8efe444038a205e79b,
> wasn't been in 2.6.24. Only 2.6.25-rc0 affected.
> 
> If applied to 2.6.24.x, it will break things.
> 

ah, OK, thanks.  git timestamps considered harmful.
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