linux-kernel - Re: [PATCH] eeh_pseries: Missing break?

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Date:	Sat, 08 Mar 2014 08:26:43 -0800
From:	Joe Perches <joe@...ches.com>
To:	Gavin Shan <shangw@...ux.vnet.ibm.com>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] eeh_pseries: Missing break?

On Sun, 2014-03-09 at 00:16 +0800, Gavin Shan wrote:
> On Fri, Mar 07, 2014 at 04:31:32PM -0800, Joe Perches wrote:
> >Looks like this is unintentional as the
> >result = EEH_STATE_UNAVAILABLE is being
> >overwritten by EEH_STATE_NOT_SUPPORT in the
> >fallthrough to the default case.
> 
> Thanks, Joe. It wasn't unintentional.

Hi Gavin.

English usages of "double negatives" are different
than other languages.  "it wasn't unintentional"
means the same thing as "it was intentional".

> Could you have better commit log
> and subject, then repost it?
> 
> The format looks like:
> 
> ---
> 
> powerpc/eeh: Fix overwritten PE state
> 
> In pseries_eeh_get_state(), we always have EEH_STATE_UNAVAILABLE
> overwritten by EEH_STATE_NOT_SUPPORT because of the missed "break"
> the patch fixes the issue.
> 
> Signed-off-by: Joe Perches <joe@...ches.com>

>From my perspective, you should write up a commit
message of your own choice (I wouldn't use "we",
but the rest seems OK) and add a Reported-by:

All I did was notice it and bring it to your
attention.

> ---
> 
> With the better commit log/subject, please have:
> 
> Acked-by: Gavin Shan <shangw@...ux.vnet.ibm.com>
> 
> >---
> >diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
> >index 8a8f047..83da53f 100644
> >--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
> >+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
> >@@ -460,14 +460,15 @@ static int pseries_eeh_get_state(struct eeh_pe *pe, int *state)
> > 		case 5:
> > 			if (rets[2]) {
> > 				if (state) *state = rets[2];
> > 				result = EEH_STATE_UNAVAILABLE;
> > 			} else {
> > 				result = EEH_STATE_NOT_SUPPORT;
> > 			}
> >+			break;
> > 		default:
> > 			result = EEH_STATE_NOT_SUPPORT;
> > 		}
> > 	} else {
> > 		result = EEH_STATE_NOT_SUPPORT;
> > 	}
> >
> 
> Thanks,
> Gavin
> 



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