From patchwork Fri May 26 07:34:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 13256546 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E57018835 for ; Fri, 26 May 2023 07:35:37 +0000 (UTC) Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 007E5E50 for ; Fri, 26 May 2023 00:35:03 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1q2RyL-0005le-Dw; Fri, 26 May 2023 09:34:49 +0200 Received: from [2a0a:edc0:0:1101:1d::ac] (helo=dude04.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1q2RyJ-002u70-HD; Fri, 26 May 2023 09:34:47 +0200 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1q2RyI-002nu5-7z; Fri, 26 May 2023 09:34:46 +0200 From: Oleksij Rempel To: "David S. Miller" , Andrew Lunn , Eric Dumazet , Florian Fainelli , Jakub Kicinski , Paolo Abeni , Vladimir Oltean , Woojung Huh , Arun Ramadoss Cc: Oleksij Rempel , kernel@pengutronix.de, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, UNGLinuxDriver@microchip.com, "Russell King (Oracle)" Subject: [PATCH net-next v2 3/5] net: dsa: microchip: remove ksz_port:on variable Date: Fri, 26 May 2023 09:34:43 +0200 Message-Id: <20230526073445.668430-4-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230526073445.668430-1-o.rempel@pengutronix.de> References: <20230526073445.668430-1-o.rempel@pengutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org The only place where this variable would be set to false is the ksz8_config_cpu_port() function. But it is done in a bogus way: for (i = 0; i < dev->phy_port_cnt; i++) { if (i == dev->phy_port_cnt) <--- will be never executed. break; p->on = 1; So, we never have a situation where p->on = 0. In this case, we can just remove it. Signed-off-by: Oleksij Rempel Reviewed-by: Andrew Lunn Reviewed-by: Vladimir Oltean --- drivers/net/dsa/microchip/ksz8795.c | 20 +------------------- drivers/net/dsa/microchip/ksz_common.h | 1 - 2 files changed, 1 insertion(+), 20 deletions(-) diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c index d2f7fa3fbd27..84d502589f8e 100644 --- a/drivers/net/dsa/microchip/ksz8795.c +++ b/drivers/net/dsa/microchip/ksz8795.c @@ -941,7 +941,6 @@ void ksz8_flush_dyn_mac_table(struct ksz_device *dev, int port) { u8 learn[DSA_MAX_PORTS]; int first, index, cnt; - struct ksz_port *p; const u16 *regs; regs = dev->info->regs; @@ -955,9 +954,6 @@ void ksz8_flush_dyn_mac_table(struct ksz_device *dev, int port) cnt = dev->info->port_cnt; } for (index = first; index < cnt; index++) { - p = &dev->ports[index]; - if (!p->on) - continue; ksz_pread8(dev, index, regs[P_STP_CTRL], &learn[index]); if (!(learn[index] & PORT_LEARN_DISABLE)) ksz_pwrite8(dev, index, regs[P_STP_CTRL], @@ -965,9 +961,6 @@ void ksz8_flush_dyn_mac_table(struct ksz_device *dev, int port) } ksz_cfg(dev, S_FLUSH_TABLE_CTRL, SW_FLUSH_DYN_MAC_TABLE, true); for (index = first; index < cnt; index++) { - p = &dev->ports[index]; - if (!p->on) - continue; if (!(learn[index] & PORT_LEARN_DISABLE)) ksz_pwrite8(dev, index, regs[P_STP_CTRL], learn[index]); } @@ -1338,25 +1331,14 @@ void ksz8_config_cpu_port(struct dsa_switch *ds) ksz_cfg(dev, regs[S_TAIL_TAG_CTRL], masks[SW_TAIL_TAG_ENABLE], true); - p = &dev->ports[dev->cpu_port]; - p->on = 1; - ksz8_port_setup(dev, dev->cpu_port, true); for (i = 0; i < dev->phy_port_cnt; i++) { - p = &dev->ports[i]; - ksz_port_stp_state_set(ds, i, BR_STATE_DISABLED); - - /* Last port may be disabled. */ - if (i == dev->phy_port_cnt) - break; - p->on = 1; } for (i = 0; i < dev->phy_port_cnt; i++) { p = &dev->ports[i]; - if (!p->on) - continue; + if (!ksz_is_ksz88x3(dev)) { ksz_pread8(dev, i, regs[P_REMOTE_STATUS], &remote); if (remote & KSZ8_PORT_FIBER_MODE) diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h index f45f5fe11bde..5aa58aac3e07 100644 --- a/drivers/net/dsa/microchip/ksz_common.h +++ b/drivers/net/dsa/microchip/ksz_common.h @@ -108,7 +108,6 @@ struct ksz_port { int stp_state; struct phy_device phydev; - u32 on:1; /* port is not disabled by hardware */ u32 fiber:1; /* port is fiber */ u32 force:1; u32 read:1; /* read MIB counters in background */