On Sat, Feb 23, 2019 at 03:09:42AM -0500, YU Bo wrote:
> On Sat, Feb 23, 2019 at 08:43:20AM +0100, Greg KH wrote:
> > On Sat, Feb 23, 2019 at 01:39:39AM -0500, Bo YU wrote:
> > > From: Bo Yu <tsu.yubo@xxxxxxxxx>
> > >
> > > Compiling the kernel with W=1 results in the following warning:
> > >
> > > drivers/staging/ks7010/ks_hostif.c:465:6: warning: variable ‘mib_val_type’
> > > set but not used [-Wunused-but-set-variable]
> > > u16 mib_val_type;
> > >
> > > drivers/staging/ks7010/ks_hostif.c:464:6: warning: variable ‘mib_val_size’
> > > set but not used [-Wunused-but-set-variable]
> > > u16 mib_val_size;
> > >
> > > drivers/staging/ks7010/ks_hostif.c:786:6: warning: variable ‘result_code’
> > > set but not used [-Wunused-but-set-variable]
> > > u16 result_code;
> > >
> > > Remove these variables.
> > >
> > > Rebase on next-20190222
> > >
> > > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > > Cc: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx>
> > > Cc: Quytelda Kahja <quytelda@xxxxxxxxxxx>
> > >
> > > Signed-off-by: Bo Yu <tsu.yubo@xxxxxxxxx>
> > > ---
> > > drivers/staging/ks7010/ks_hostif.c | 6 ------
> > > 1 file changed, 6 deletions(-)
> > >
> > > diff --git a/drivers/staging/ks7010/ks_hostif.c b/drivers/staging/ks7010/ks_hostif.c
> > > index d938b0997a53..913d8996437a 100644
> > > --- a/drivers/staging/ks7010/ks_hostif.c
> > > +++ b/drivers/staging/ks7010/ks_hostif.c
> > > @@ -461,13 +461,9 @@ void hostif_mib_get_confirm(struct ks_wlan_private *priv)
> > > struct net_device *dev = priv->net_dev;
> > > u32 mib_status;
> > > u32 mib_attribute;
> > > - u16 mib_val_size;
> > > - u16 mib_val_type;
> > >
> > > mib_status = get_dword(priv);
> > > mib_attribute = get_dword(priv);
> > > - mib_val_size = get_word(priv);
> > > - mib_val_type = get_word(priv);
> >
> > The function get_word() actually does something to the priv structure,
> > so you just broke the driver :(
> >
> > >
> > > if (mib_status) {
> > > netdev_err(priv->net_dev, "attribute=%08X, status=%08X\n",
> > > @@ -783,9 +779,7 @@ void hostif_ps_adhoc_set_confirm(struct ks_wlan_private *priv)
> > > static
> > > void hostif_infrastructure_set_confirm(struct ks_wlan_private *priv)
> > > {
> > > - u16 result_code;
> > >
> > > - result_code = get_word(priv);
> > > priv->infra_status = 1; /* infrastructure mode set */
> > > hostif_sme_enqueue(priv, SME_MODE_SET_CONFIRM);
> >
> > Same here, odds are you just broke things :(
> >
> > Please be more careful.
> Ok, I have through get_word() and get_byte() before modifing the code.
> I think it should be better to encapsulate get_word without return value to do some operations
> like that? right?
Something should be done, as that api is pretty horrible. But I think
that might be a lot more work to accomplish :)
greg k-h
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