From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751908AbdAQXdS (ORCPT ); Tue, 17 Jan 2017 18:33:18 -0500 Received: from mail-pg0-f66.google.com ([74.125.83.66]:33027 "EHLO mail-pg0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751859AbdAQXbP (ORCPT ); Tue, 17 Jan 2017 18:31:15 -0500 From: Florian Fainelli To: netdev@vger.kernel.org Cc: Florian Fainelli , Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , Gregory Clement , Russell King , Vivien Didelot , "David S. Miller" , Greg Kroah-Hartman , linux-arm-kernel@lists.infradead.org (moderated list:ARM/Marvell Dove/MV78xx0/Orion SOC support), linux-kernel@vger.kernel.org (open list) Subject: [PATCH net-next v4 02/10] net: dsa: Make most functions take a dsa_port argument Date: Tue, 17 Jan 2017 15:21:44 -0800 Message-Id: <20170117232152.1661-3-f.fainelli@gmail.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170117232152.1661-1-f.fainelli@gmail.com> References: <20170117232152.1661-1-f.fainelli@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In preparation for allowing platform data, and therefore no valid device_node pointer, make most DSA functions takes a pointer to a dsa_port structure whenever possible. While at it, introduce a dsa_port_is_valid() helper function which checks whether port->dn is NULL or not at the moment. Signed-off-by: Florian Fainelli --- net/dsa/dsa.c | 15 ++++++++------ net/dsa/dsa2.c | 61 +++++++++++++++++++++++++++++------------------------- net/dsa/dsa_priv.h | 4 ++-- 3 files changed, 44 insertions(+), 36 deletions(-) diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index fd532487dfdf..2306d1b87c83 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -110,8 +110,9 @@ dsa_switch_probe(struct device *parent, struct device *host_dev, int sw_addr, /* basic switch operations **************************************************/ int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev, - struct device_node *port_dn, int port) + struct dsa_port *dport, int port) { + struct device_node *port_dn = dport->dn; struct phy_device *phydev; int ret, mode; @@ -141,15 +142,15 @@ int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev, static int dsa_cpu_dsa_setups(struct dsa_switch *ds, struct device *dev) { - struct device_node *port_dn; + struct dsa_port *dport; int ret, port; for (port = 0; port < DSA_MAX_PORTS; port++) { if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port))) continue; - port_dn = ds->ports[port].dn; - ret = dsa_cpu_dsa_setup(ds, dev, port_dn, port); + dport = &ds->ports[port]; + ret = dsa_cpu_dsa_setup(ds, dev, dport, port); if (ret) return ret; } @@ -366,8 +367,10 @@ dsa_switch_setup(struct dsa_switch_tree *dst, int index, return ds; } -void dsa_cpu_dsa_destroy(struct device_node *port_dn) +void dsa_cpu_dsa_destroy(struct dsa_port *port) { + struct device_node *port_dn = port->dn; + if (of_phy_is_fixed_link(port_dn)) of_phy_deregister_fixed_link(port_dn); } @@ -393,7 +396,7 @@ static void dsa_switch_destroy(struct dsa_switch *ds) for (port = 0; port < DSA_MAX_PORTS; port++) { if (!(dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port))) continue; - dsa_cpu_dsa_destroy(ds->ports[port].dn); + dsa_cpu_dsa_destroy(&ds->ports[port]); /* Clearing a bit which is not set does no harm */ ds->cpu_port_mask |= ~(1 << port); diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 4170f7ea8e28..6e3675220fef 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -79,14 +79,19 @@ static void dsa_dst_del_ds(struct dsa_switch_tree *dst, kref_put(&dst->refcount, dsa_free_dst); } -static bool dsa_port_is_dsa(struct device_node *port) +static bool dsa_port_is_valid(struct dsa_port *port) { - return !!of_parse_phandle(port, "link", 0); + return !!port->dn; } -static bool dsa_port_is_cpu(struct device_node *port) +static bool dsa_port_is_dsa(struct dsa_port *port) { - return !!of_parse_phandle(port, "ethernet", 0); + return !!of_parse_phandle(port->dn, "link", 0); +} + +static bool dsa_port_is_cpu(struct dsa_port *port) +{ + return !!of_parse_phandle(port->dn, "ethernet", 0); } static bool dsa_ds_find_port(struct dsa_switch *ds, @@ -120,7 +125,7 @@ static struct dsa_switch *dsa_dst_find_port(struct dsa_switch_tree *dst, static int dsa_port_complete(struct dsa_switch_tree *dst, struct dsa_switch *src_ds, - struct device_node *port, + struct dsa_port *port, u32 src_port) { struct device_node *link; @@ -128,7 +133,7 @@ static int dsa_port_complete(struct dsa_switch_tree *dst, struct dsa_switch *dst_ds; for (index = 0;; index++) { - link = of_parse_phandle(port, "link", index); + link = of_parse_phandle(port->dn, "link", index); if (!link) break; @@ -151,13 +156,13 @@ static int dsa_port_complete(struct dsa_switch_tree *dst, */ static int dsa_ds_complete(struct dsa_switch_tree *dst, struct dsa_switch *ds) { - struct device_node *port; + struct dsa_port *port; u32 index; int err; for (index = 0; index < DSA_MAX_PORTS; index++) { - port = ds->ports[index].dn; - if (!port) + port = &ds->ports[index]; + if (!dsa_port_is_valid(port)) continue; if (!dsa_port_is_dsa(port)) @@ -197,7 +202,7 @@ static int dsa_dst_complete(struct dsa_switch_tree *dst) return 0; } -static int dsa_dsa_port_apply(struct device_node *port, u32 index, +static int dsa_dsa_port_apply(struct dsa_port *port, u32 index, struct dsa_switch *ds) { int err; @@ -212,13 +217,13 @@ static int dsa_dsa_port_apply(struct device_node *port, u32 index, return 0; } -static void dsa_dsa_port_unapply(struct device_node *port, u32 index, +static void dsa_dsa_port_unapply(struct dsa_port *port, u32 index, struct dsa_switch *ds) { dsa_cpu_dsa_destroy(port); } -static int dsa_cpu_port_apply(struct device_node *port, u32 index, +static int dsa_cpu_port_apply(struct dsa_port *port, u32 index, struct dsa_switch *ds) { int err; @@ -235,7 +240,7 @@ static int dsa_cpu_port_apply(struct device_node *port, u32 index, return 0; } -static void dsa_cpu_port_unapply(struct device_node *port, u32 index, +static void dsa_cpu_port_unapply(struct dsa_port *port, u32 index, struct dsa_switch *ds) { dsa_cpu_dsa_destroy(port); @@ -243,13 +248,13 @@ static void dsa_cpu_port_unapply(struct device_node *port, u32 index, } -static int dsa_user_port_apply(struct device_node *port, u32 index, +static int dsa_user_port_apply(struct dsa_port *port, u32 index, struct dsa_switch *ds) { const char *name; int err; - name = of_get_property(port, "label", NULL); + name = of_get_property(port->dn, "label", NULL); if (!name) name = "eth%d"; @@ -263,7 +268,7 @@ static int dsa_user_port_apply(struct device_node *port, u32 index, return 0; } -static void dsa_user_port_unapply(struct device_node *port, u32 index, +static void dsa_user_port_unapply(struct dsa_port *port, u32 index, struct dsa_switch *ds) { if (ds->ports[index].netdev) { @@ -275,7 +280,7 @@ static void dsa_user_port_unapply(struct device_node *port, u32 index, static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds) { - struct device_node *port; + struct dsa_port *port; u32 index; int err; @@ -309,8 +314,8 @@ static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds) } for (index = 0; index < DSA_MAX_PORTS; index++) { - port = ds->ports[index].dn; - if (!port) + port = &ds->ports[index]; + if (!dsa_port_is_valid(port)) continue; if (dsa_port_is_dsa(port)) { @@ -337,12 +342,12 @@ static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds) static void dsa_ds_unapply(struct dsa_switch_tree *dst, struct dsa_switch *ds) { - struct device_node *port; + struct dsa_port *port; u32 index; for (index = 0; index < DSA_MAX_PORTS; index++) { - port = ds->ports[index].dn; - if (!port) + port = &ds->ports[index]; + if (!dsa_port_is_valid(port)) continue; if (dsa_port_is_dsa(port)) { @@ -426,7 +431,7 @@ static void dsa_dst_unapply(struct dsa_switch_tree *dst) dst->applied = false; } -static int dsa_cpu_parse(struct device_node *port, u32 index, +static int dsa_cpu_parse(struct dsa_port *port, u32 index, struct dsa_switch_tree *dst, struct dsa_switch *ds) { @@ -434,7 +439,7 @@ static int dsa_cpu_parse(struct device_node *port, u32 index, struct net_device *ethernet_dev; struct device_node *ethernet; - ethernet = of_parse_phandle(port, "ethernet", 0); + ethernet = of_parse_phandle(port->dn, "ethernet", 0); if (!ethernet) return -EINVAL; @@ -467,13 +472,13 @@ static int dsa_cpu_parse(struct device_node *port, u32 index, static int dsa_ds_parse(struct dsa_switch_tree *dst, struct dsa_switch *ds) { - struct device_node *port; + struct dsa_port *port; u32 index; int err; for (index = 0; index < DSA_MAX_PORTS; index++) { - port = ds->ports[index].dn; - if (!port) + port = &ds->ports[index]; + if (!dsa_port_is_valid(port)) continue; if (dsa_port_is_cpu(port)) { @@ -534,7 +539,7 @@ static int dsa_parse_ports_dn(struct device_node *ports, struct dsa_switch *ds) * to have access to a correct value, just like what * net/dsa/dsa.c::dsa_switch_setup_one does. */ - if (!dsa_port_is_cpu(port)) + if (!dsa_port_is_cpu(&ds->ports[reg])) ds->enabled_port_mask |= 1 << reg; } diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index 7e3385ec73f4..a015ec97c289 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -50,8 +50,8 @@ struct dsa_slave_priv { /* dsa.c */ int dsa_cpu_dsa_setup(struct dsa_switch *ds, struct device *dev, - struct device_node *port_dn, int port); -void dsa_cpu_dsa_destroy(struct device_node *port_dn); + struct dsa_port *dport, int port); +void dsa_cpu_dsa_destroy(struct dsa_port *dport); const struct dsa_device_ops *dsa_resolve_tag_protocol(int tag_protocol); int dsa_cpu_port_ethtool_setup(struct dsa_switch *ds); void dsa_cpu_port_ethtool_restore(struct dsa_switch *ds); -- 2.9.3