linux-kernel - Re: [PATCH] staging: rtl8712: rtl871x_security.c: remove unnecessary variable initialization

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Message-ID: <20150626162003.GA1999@goodgumbo.baconseed.org>
Date:	Fri, 26 Jun 2015 18:20:07 +0200
From:	Luis de Bethencourt <luis@...ethencourt.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	Sunil Shahu <shshahu@...il.com>, gregkh@...uxfoundation.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	sudipm.mukherjee@...il.com
Subject: Re: [PATCH] staging: rtl8712: rtl871x_security.c: remove unnecessary
 variable initialization

On Fri, Jun 26, 2015 at 06:51:33PM +0300, Dan Carpenter wrote:
> On Fri, Jun 26, 2015 at 05:50:27PM +0200, Luis de Bethencourt wrote:
> > On Fri, Jun 26, 2015 at 07:42:24PM +0530, Sunil Shahu wrote:
> > > Variable "u32 c" always re-initialize in for loop.
> > > Initialized value of "u32 c" is not used in function
> > > and is redundant, hence removed.
> > > 
> > > Suggested-by: Dan Carpenter <dan.carpenter@...cle.com>
> > > Signed-off-by: Sunil Shahu <shshahu@...il.com>
> > > ---
> > >  drivers/staging/rtl8712/rtl871x_security.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/staging/rtl8712/rtl871x_security.c b/drivers/staging/rtl8712/rtl871x_security.c
> > > index 21465c9..8627928 100644
> > > --- a/drivers/staging/rtl8712/rtl871x_security.c
> > > +++ b/drivers/staging/rtl8712/rtl871x_security.c
> > > @@ -125,7 +125,7 @@ static u8 crc32_reverseBit(u8 data)
> > >  static void crc32_init(void)
> > >  {
> > >  	sint i, j;
> > > -	u32 c = 0x12340000;
> > > +	u32 c;
> > >  	u8 *p = (u8 *)&c, *p1;
> > >  	u8 k;
> > >  
> > > -- 
> > > 1.9.1
> > 
> > The patch is good, the value assigned to c is immediately overwritten.
> > 
> > Unfortunately the patch fails to apply in staging-testing and linux-next. Could
> > you please rebase?
> 
> It's based on earlier patches on the list.
> 
> Normally only Greg tests that patches apply and it will for him because
> he applies them as the order they arrive.  But we should probably start
> putting notes on the patches which earlier patches are required...
> 
> regards,
> dan carpenter
> 

I see. Thanks for the explanation.

Then the patch is good, but it doesn't need a Reviewed-by line since it you
pre-approved it.

Regards,
Luis
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