netdev - [PATCH net-next v2 12/12] net: dsa: remove unnecessary phy*.h includes

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Date:   Tue,  7 Feb 2017 15:03:05 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     netdev@...r.kernel.org, linux-mips@...ux-mips.org,
        linux-nfs@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-wireless@...r.kernel.org,
        target-devel@...r.kernel.org
Cc:     Russell King <rmk+kernel@...linux.org.uk>,
        Andrew Lunn <andrew@...n.ch>,
        Anna Schumaker <anna.schumaker@...app.com>,
        "David S. Miller" <davem@...emloft.net>,
        Derek Chickles <derek.chickles@...iumnetworks.com>,
        Felix Manlunas <felix.manlunas@...iumnetworks.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "J. Bruce Fields" <bfields@...ldses.org>,
        Jeff Layton <jlayton@...chiereds.net>,
        Jiri Slaby <jirislaby@...il.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        "Luis R. Rodriguez" <mcgrof@...not-panic.com>,
        Madalin Bucur <madalin.bucur@....com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        "Nicholas A. Bellinger" <nab@...ux-iscsi.org>,
        Nick Kossifidis <mickflemm@...il.com>,
        Nicolas Ferre <nicolas.ferre@...el.com>,
        Raghu Vatsavayi <raghu.vatsavayi@...iumnetworks.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Satanand Burla <satananda.burla@...iumnetworks.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Timur Tabi <timur@...eaurora.org>,
        Trond Myklebust <trond.myklebust@...marydata.com>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Woojung Huh <woojung.huh@...rochip.com>
Subject: [PATCH net-next v2 12/12] net: dsa: remove unnecessary phy*.h includes

From: Russell King <rmk+kernel@...linux.org.uk>

Including phy.h and phy_fixed.h into net/dsa.h causes phy*.h to be an
unnecessary dependency for quite a large amount of the kernel.  There's
very little which actually requires definitions from phy.h in net/dsa.h
- the include itself only wants the declaration of a couple of
structures and IFNAMSIZ.

Add linux/if.h for IFNAMSIZ, declarations for the structures, phy.h to
mv88e6xxx.h as it needs it for phy_interface_t, and remove both phy.h
and phy_fixed.h from net/dsa.h.

This patch reduces from around 800 files rebuilt to around 40 - even
with ccache, the time difference is noticable.

Tested-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
---
 drivers/net/dsa/mv88e6xxx/mv88e6xxx.h | 1 +
 include/net/dsa.h                     | 5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx/mv88e6xxx.h
index 8a21800374f3..91c4dd25c2d3 100644
--- a/drivers/net/dsa/mv88e6xxx/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx/mv88e6xxx.h
@@ -15,6 +15,7 @@
 #include <linux/if_vlan.h>
 #include <linux/irq.h>
 #include <linux/gpio/consumer.h>
+#include <linux/phy.h>
 
 #ifndef UINT64_MAX
 #define UINT64_MAX		(u64)(~((u64)0))
diff --git a/include/net/dsa.h b/include/net/dsa.h
index b49b2004891e..4e13e695f025 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -11,17 +11,18 @@
 #ifndef __LINUX_NET_DSA_H
 #define __LINUX_NET_DSA_H
 
+#include <linux/if.h>
 #include <linux/if_ether.h>
 #include <linux/list.h>
 #include <linux/notifier.h>
 #include <linux/timer.h>
 #include <linux/workqueue.h>
 #include <linux/of.h>
-#include <linux/phy.h>
-#include <linux/phy_fixed.h>
 #include <linux/ethtool.h>
 
 struct tc_action;
+struct phy_device;
+struct fixed_phy_status;
 
 enum dsa_tag_protocol {
 	DSA_TAG_PROTO_NONE = 0,
-- 
2.9.3