From patchwork Tue Dec 1 20:45:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Grzeschik X-Patchwork-Id: 336637 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06620C8300F for ; Tue, 1 Dec 2020 20:46:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B572920679 for ; Tue, 1 Dec 2020 20:46:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729255AbgLAUpy (ORCPT ); Tue, 1 Dec 2020 15:45:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48174 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725971AbgLAUpx (ORCPT ); Tue, 1 Dec 2020 15:45:53 -0500 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 6C9C6C0613D4 for ; Tue, 1 Dec 2020 12:45:13 -0800 (PST) Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kkCWN-0002ss-36; Tue, 01 Dec 2020 21:45:11 +0100 Received: from mgr by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1kkCWK-0002bm-4G; Tue, 01 Dec 2020 21:45:08 +0100 From: Michael Grzeschik To: netdev@vger.kernel.org Cc: andrew@lunn.ch, f.fainelli@gmail.com, davem@davemloft.net, kernel@pengutronix.de, matthias.schiffer@ew.tq-group.com, woojung.huh@microchip.com, UNGLinuxDriver@microchip.com Subject: [PATCH v2 05/11] net: dsa: microchip: ksz8795: use mib_cnt where possible Date: Tue, 1 Dec 2020 21:45:00 +0100 Message-Id: <20201201204506.13473-6-m.grzeschik@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201201204506.13473-1-m.grzeschik@pengutronix.de> References: <20201201204506.13473-1-m.grzeschik@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mgr@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org The variable mib_cnt is assigned with TOTAL_SWITCH_COUNTER_NUM. This value can also be derived from the array size of mib_names. This patch uses this calculated value instead, removes the extra define and uses mib_cnt everywhere possible instead of the static define TOTAL_SWITCH_COUNTER_NUM. Keeping it in a separate variable instead of using ARRAY_SIZE everywhere instead makes the driver more flexible for future use of devices with different amount of counters. Reviewed-by: Florian Fainelli Signed-off-by: Michael Grzeschik --- v1 -> v2: - fixed missing dev variable in ksz8795_get_strings - improved the patch description about the variables purpose --- drivers/net/dsa/microchip/ksz8795.c | 9 +++++---- drivers/net/dsa/microchip/ksz8795_reg.h | 3 --- 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c index 04a571bde7e6a..abdfc7f4d70ca 100644 --- a/drivers/net/dsa/microchip/ksz8795.c +++ b/drivers/net/dsa/microchip/ksz8795.c @@ -23,7 +23,7 @@ static const struct { char string[ETH_GSTRING_LEN]; -} mib_names[TOTAL_SWITCH_COUNTER_NUM] = { +} mib_names[] = { { "rx_hi" }, { "rx_undersize" }, { "rx_fragments" }, @@ -654,9 +654,10 @@ static enum dsa_tag_protocol ksz8795_get_tag_protocol(struct dsa_switch *ds, static void ksz8795_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *buf) { + struct ksz_device *dev = ds->priv; int i; - for (i = 0; i < TOTAL_SWITCH_COUNTER_NUM; i++) { + for (i = 0; i < dev->mib_cnt; i++) { memcpy(buf + i * ETH_GSTRING_LEN, mib_names[i].string, ETH_GSTRING_LEN); } @@ -1236,7 +1237,7 @@ static int ksz8795_switch_init(struct ksz_device *dev) dev->port_mask |= dev->host_mask; dev->reg_mib_cnt = KSZ8795_COUNTER_NUM; - dev->mib_cnt = TOTAL_SWITCH_COUNTER_NUM; + dev->mib_cnt = ARRAY_SIZE(mib_names); dev->mib_port_cnt = TOTAL_PORT_NUM; dev->phy_port_cnt = SWITCH_PORT_NUM; @@ -1254,7 +1255,7 @@ static int ksz8795_switch_init(struct ksz_device *dev) dev->ports[i].mib.counters = devm_kzalloc(dev->dev, sizeof(u64) * - (TOTAL_SWITCH_COUNTER_NUM + 1), + (dev->mib_cnt + 1), GFP_KERNEL); if (!dev->ports[i].mib.counters) return -ENOMEM; diff --git a/drivers/net/dsa/microchip/ksz8795_reg.h b/drivers/net/dsa/microchip/ksz8795_reg.h index 25840719b9366..c131224850135 100644 --- a/drivers/net/dsa/microchip/ksz8795_reg.h +++ b/drivers/net/dsa/microchip/ksz8795_reg.h @@ -852,9 +852,6 @@ #define SWITCH_PORT_NUM (TOTAL_PORT_NUM - 1) #define KSZ8795_COUNTER_NUM 0x20 -#define TOTAL_KSZ8795_COUNTER_NUM (KSZ8795_COUNTER_NUM + 4) - -#define TOTAL_SWITCH_COUNTER_NUM TOTAL_KSZ8795_COUNTER_NUM /* Common names used by other drivers */