Re: [PATCH] staging: rtl8172u: Make ieee80211_crypto_init static

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Sat, Jun 21, 2014 at 12:04:44PM +0200, L. Alberto Giménez wrote:
> On Thu, Jun 19, 2014 at 05:14:26PM -0700, Greg Kroah-Hartman wrote:
> > On Thu, Jun 12, 2014 at 07:40:49PM +0200, L. Alberto Giménez wrote:
> > > Fix sparse warning.
> > > 
> > > Signed-off-by: L. Alberto Giménez <agimenez@sysvalve.es>
> > > ---
> > >  drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
> > > index 5533221..3be690d 100644
> > > --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
> > > +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
> > > @@ -200,7 +200,7 @@ static struct ieee80211_crypto_ops ieee80211_crypt_null = {
> > >  	.owner			= THIS_MODULE,
> > >  };
> > >  
> > > -int __init ieee80211_crypto_init(void)
> > > +static int __init ieee80211_crypto_init(void)
> > >  {
> > >  	int ret = -ENOMEM;
> > 
> > You obviously did not compile this change :(
> > 
> > greg k-h
> 
> Hi Greg,
> 
> I'm very sorry for that, I swear I compiled it, but clearly I'm missing something
> here.
> 
> My patch compiles with a warning, but tag v3.15 (tag where my branch is based) does
> not issue this warning:
> 
> drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c:203:19: warning:
> ‘ieee80211_crypto_init’ defined but not used [-Wunused-function]
>  static int __init ieee80211_crypto_init(void)
>                    ^
> 
> I thought that __init functions could be static, is there any problem with that? Care
> to shed some light here?

That function is called by a different file, it can not be static, I
don't know how you were able to successfully build the driver with your
change...