linux-kernel - Re: [PATCH 4.4 112/117] rtlwifi: rtl8821ae: Fix errors in parameter initialization

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Message-ID: <20160216202138.GA8671@charon.olymp>
Date:	Tue, 16 Feb 2016 20:21:38 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	Larry Finger <Larry.Finger@...inger.net>, stable@...r.kernel.org,
	Kalle Valo <kvalo@...eaurora.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4.4 112/117] rtlwifi: rtl8821ae: Fix errors in parameter
 initialization

On Tue, Feb 16, 2016 at 06:46:04PM +0000, Ben Hutchings wrote:
> On Sun, 2016-02-14 at 14:22 -0800, Greg Kroah-Hartman wrote:
> 
> > 4.4-stable review patch.  If anyone has any objections, please let me know.
> > 
> > ------------------
> > 
> > From: Larry Finger <Larry.Finger@...inger.net>
> > 
> > commit 78bae1de422a7f6f2b4b61f6a5c379e3d7f96f44 upstream.
> > 
> > This driver failed to copy parameters sw_crypto and disable_watchdog into
> > the locations actually used by the driver. In addition, msi_support was
> > initialized three times and one of them used the wrong variable. The
> > initialization of parameter int_clear was moved so that it is near that
> > of the rest of the parameters.
> > 
> > Signed-off-by: Larry Finger <Larry.Finger@...inger.net>
> > Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > 
> > ---
> >  drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c |    9 +++++----
> >  1 file changed, 5 insertions(+), 4 deletions(-)
> > 
> > --- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c
> > +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c
> [...]
> > @@ -168,12 +166,15 @@ int rtl8821ae_init_sw_vars(struct ieee80
> >  	rtlpriv->psc.swctrl_lps = rtlpriv->cfg->mod_params->swctrl_lps;
> >  	rtlpriv->psc.fwctrl_lps = rtlpriv->cfg->mod_params->fwctrl_lps;
> >  	rtlpci->msi_support = rtlpriv->cfg->mod_params->msi_support;
> > -	rtlpci->msi_support = rtlpriv->cfg->mod_params->int_clear;
> > +	rtlpci->int_clear = rtlpriv->cfg->mod_params->int_clear;
> > +	rtlpriv->cfg->mod_params->sw_crypto =
> > +		rtlpriv->cfg->mod_params->sw_crypto;
> > +	rtlpriv->cfg->mod_params->disable_watchdog =
> > +		rtlpriv->cfg->mod_params->disable_watchdog;
> [...]
> 
> This is self-assignment.  How is that going to help?
> 

Yeah, I did asked that question on the original patchset[1] but never
actually got any reply.

[1] https://marc.info/?l=linux-wireless&m=145437005409037&w=2

Cheers,
--
Luís

> Ben.
> 
> -- 
> Ben Hutchings
> Life is what happens to you while you're busy making other plans.
>                                                                - John Lennon