linux-kernel - Re: [PATCH 2/2] staging: r8188eu: remove get

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Message-ID: <b96575df57afd5f598b124c540063b698af10706.camel@perches.com>
Date:   Sun, 30 Oct 2022 07:28:41 -0700
From:   Joe Perches <joe@...ches.com>
To:     Martin Kaiser <martin@...ser.cx>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Michael Straube <straube.linux@...il.com>,
        Pavel Skripkin <paskripkin@...il.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] staging: r8188eu: remove get_da

On Sat, 2022-10-29 at 19:10 +0200, Martin Kaiser wrote:
> Replace the last get_da call with ieee80211_get_DA and remove the get_da
> function.
[]
> diff --git a/drivers/staging/r8188eu/hal/rtl8188e_rxdesc.c b/drivers/staging/r8188eu/hal/rtl8188e_rxdesc.c
[]
> @@ -125,7 +126,7 @@ void update_recvframe_phyinfo_88e(struct recv_frame *precvframe, struct phy_stat
>  		 get_bssid(&padapter->mlmepriv), ETH_ALEN));
>  
>  	pkt_info.bPacketToSelf = pkt_info.bPacketMatchBSSID &&
> -				 (!memcmp(get_da(wlanhdr),
> +				 (!memcmp(ieee80211_get_DA(hdr),
>  				  myid(&padapter->eeprompriv), ETH_ALEN));

trivia:

As both of the addresses returned are minimum __aligned(2),
these memcmp uses could be ether_addr_equal

Look for ETH_ALEN

$ git grep ETH_ALEN drivers/staging/r8188eu/

Perhaps see if the memcpy/memcmp uses with ETH_ALEN could be
converted to ether_addr_copy/ether_addr_equal or any of the
other is_<foo>_ether_addr calls.