linux-kernel - Re: [PATCH 2/4] staging: r8188eu: merge _mgt_dispatcher into mgt

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Date:   Sun, 17 Apr 2022 12:33:52 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Pavel Skripkin <paskripkin@...il.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Michael Straube <straube.linux@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] staging: r8188eu: merge _mgt_dispatcher into
 mgt_dispatcher

Hi Pavel,

Thus wrote Pavel Skripkin (paskripkin@...il.com):

> On 4/13/22 23:07, Martin Kaiser wrote:
> > All that the _mgt_dispatcher function does is to call a function from
> > a function pointer. It's not worth having a separate function for this.

> > Merge _mgt_dispatcher into mgt_dispatcher.

> > Signed-off-by: Martin Kaiser <martin@...ser.cx>
> > ---

> [code snip]

> > +
> > +	if (ptable->func) {
> > +	/* receive the frames that ra(a1) is my address or ra(a1) is bc address. */
> > +		if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN) &&
> > +		    !is_broadcast_ether_addr(GetAddr1Ptr(pframe)))
> > +			return;
> > +		ptable->func(padapter, precv_frame);
> > +	}
> >   }

> Looks like each `mlme_sta_tbl` element has `func` member initialized. I
> think, we can remove this check.

I've just sent a series to refactor mgt_dispatcher.

All mlme_sta_tbl entries have a function pointer, but some of the point
to a dummy function DoReserved. I guess we should use NULL and keep the
check instead of calling a function that does nothing.

Best regards,
Martin