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[94.66.229.5]) by smtp.gmail.com with ESMTPSA id 17sm22661117wrk.91.2019.04.26.03.53.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 26 Apr 2019 03:53:44 -0700 (PDT) Date: Fri, 26 Apr 2019 13:53:41 +0300 From: Ilias Apalodimas To: Grygorii Strashko , netdev@vger.kernel.org, Andrew Lunn , "David S . Miller" , Jiri Pirko , Florian Fainelli , Sekhar Nori , linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, Murali Karicheri , Ivan Vecera Subject: Re: [RFC PATCH v3 net-next 03/11] net: ethernet: ti: cpsw: ale: add functions to modify VLANs/MDBs Message-ID: <20190426105341.GA22373@apalos> References: <1556144667-27997-1-git-send-email-grygorii.strashko@ti.com> <1556144667-27997-4-git-send-email-grygorii.strashko@ti.com> <20190426104156.GA2796@khorivan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190426104156.GA2796@khorivan> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Ivan, > >} > > > >+static int cpsw_ale_read_mc(struct cpsw_ale *ale, u8 *addr, int flags, u16 vid) > See below. > Yes > >+{ > >+ u32 ale_entry[ALE_ENTRY_WORDS] = {0, 0, 0}; > >+ int idx; > >+ > >+ idx = cpsw_ale_match_addr(ale, addr, (flags & ALE_VLAN) ? vid : 0); > >+ if (idx >= 0) > >+ cpsw_ale_read(ale, idx, ale_entry); > >+ > >+ return cpsw_ale_get_port_mask(ale_entry, ale->port_mask_bits); > >+} > >+ > >+int cpsw_ale_mcast_add_modify(struct cpsw_ale *ale, u8 *addr, int port_mask, > >+ int flags, u16 vid, int mcast_state) > >+{ > >+ int mcast_members, ret; > >+ > >+ mcast_members = cpsw_ale_read_mc(ale, addr, flags, vid) | port_mask; > >+ ret = cpsw_ale_add_mcast(ale, addr, mcast_members, flags, vid, > >+ mcast_state); > By fact, cpsw_ale_add_mcast() is doing modify itself already, just name is > different. > > These 3 func duplicate the existent functionality as result code is done twice. > Better remove/combine them and rename existent ones, like: > cpsw_ale_add_mcast() -> cpsw_ale_add_mcast_modify() > cpsw_ale_del_mcast() -> cpsw_ale_del_mcast_modify() > Yes this is correct. The reason the duplication exists is that this was originally coded on top of the current cpsw code. So i didn't want to change any part of the working driver. Since we are re-working a bunch of stuff now this makes sense > >+ > >+ return ret; > >+} > >+ > >+int cpsw_ale_mcast_del_modify(struct cpsw_ale *ale, u8 *addr, int port_mask, > >+ int flags, u16 vid) > See above. and yes :) > > >+{ > >+ int mcast_members, ret; > >+ int idx; > >+ > >+ mcast_members = cpsw_ale_read_mc(ale, addr, flags, vid) & ~port_mask; > >+ idx = cpsw_ale_match_addr(ale, addr, (flags & ALE_VLAN) ? vid : 0); > >+ if (idx < 0) > >+ return 0; > >+ ret = cpsw_ale_del_mcast(ale, addr, mcast_members, flags, vid); > >+ > >+ return ret; > >+} > >+ Regards, /Ilias