[PATCH net-next 0/7] net: hdlc: clean up some code style issues

[PATCH net-next 0/7] net: hdlc: clean up some code style issues

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

This patchset clean up some code style issues.

Peng Li (7):
  net: hdlc: remove redundant blank lines
  net: hdlc: add blank line after declarations
  net: hdlc: fix an code style issue about "foo* bar"
  net: hdlc: fix an code style issue about EXPORT_SYMBOL(foo)
  net: hdlc: replace comparison to NULL with "!param"
  net: hdlc: move out assignment in if condition
  net: hdlc: add braces {} to all arms of the statement

 drivers/net/wan/hdlc.c | 63 ++++++++++++++++++--------------------------------
 1 file changed, 23 insertions(+), 40 deletions(-)

-- 
2.8.1

[PATCH net-next 1/7] net: hdlc: remove redundant blank lines

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

This patch removes some redundant blank lines.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/wan/hdlc.c | 23 -----------------------
 1 file changed, 23 deletions(-)

diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index 1bdd3df..0883302 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -36,7 +36,6 @@
 #include <linux/slab.h>
 #include <net/net_namespace.h>
 
-
 static const char* version = "HDLC support module revision 1.22";
 
 #undef DEBUG_LINK
@@ -82,8 +81,6 @@ static inline void hdlc_proto_start(struct net_device *dev)
 		hdlc->proto->start(dev);
 }
 
-
-
 static inline void hdlc_proto_stop(struct net_device *dev)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
@@ -91,8 +88,6 @@ static inline void hdlc_proto_stop(struct net_device *dev)
 		hdlc->proto->stop(dev);
 }
 
-
-
 static int hdlc_device_event(struct notifier_block *this, unsigned long event,
 			     void *ptr)
 {
@@ -141,8 +136,6 @@ static int hdlc_device_event(struct notifier_block *this, unsigned long event,
 	return NOTIFY_DONE;
 }
 
-
-
 /* Must be called by hardware driver when HDLC device is being opened */
 int hdlc_open(struct net_device *dev)
 {
@@ -175,8 +168,6 @@ int hdlc_open(struct net_device *dev)
 	return 0;
 }
 
-
-
 /* Must be called by hardware driver when HDLC device is being closed */
 void hdlc_close(struct net_device *dev)
 {
@@ -198,8 +189,6 @@ void hdlc_close(struct net_device *dev)
 		hdlc->proto->close(dev);
 }
 
-
-
 int hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
 	struct hdlc_proto *proto = first_proto;
@@ -271,8 +260,6 @@ void unregister_hdlc_device(struct net_device *dev)
 	rtnl_unlock();
 }
 
-
-
 int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto,
 			 size_t size)
 {
@@ -297,7 +284,6 @@ int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto,
 	return 0;
 }
 
-
 int detach_hdlc_protocol(struct net_device *dev)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
@@ -323,7 +309,6 @@ int detach_hdlc_protocol(struct net_device *dev)
 	return 0;
 }
 
-
 void register_hdlc_protocol(struct hdlc_proto *proto)
 {
 	rtnl_lock();
@@ -332,7 +317,6 @@ void register_hdlc_protocol(struct hdlc_proto *proto)
 	rtnl_unlock();
 }
 
-
 void unregister_hdlc_protocol(struct hdlc_proto *proto)
 {
 	struct hdlc_proto **p;
@@ -347,8 +331,6 @@ void unregister_hdlc_protocol(struct hdlc_proto *proto)
 	rtnl_unlock();
 }
 
-
-
 MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
 MODULE_DESCRIPTION("HDLC support module");
 MODULE_LICENSE("GPL v2");
@@ -369,12 +351,10 @@ static struct packet_type hdlc_packet_type __read_mostly = {
 	.func = hdlc_rcv,
 };
 
-
 static struct notifier_block hdlc_notifier = {
 	.notifier_call = hdlc_device_event,
 };
 
-
 static int __init hdlc_module_init(void)
 {
 	int result;
@@ -386,14 +366,11 @@ static int __init hdlc_module_init(void)
 	return 0;
 }
 
-
-
 static void __exit hdlc_module_exit(void)
 {
 	dev_remove_pack(&hdlc_packet_type);
 	unregister_netdevice_notifier(&hdlc_notifier);
 }
 
-
 module_init(hdlc_module_init);
 module_exit(hdlc_module_exit);
-- 
2.8.1

[PATCH net-next 2/7] net: hdlc: add blank line after declarations

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

This patch fixes the checkpatch error about missing a blank line
after declarations.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/wan/hdlc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index 0883302..6199a70 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -77,6 +77,7 @@ netdev_tx_t hdlc_start_xmit(struct sk_buff *skb, struct net_device *dev)
 static inline void hdlc_proto_start(struct net_device *dev)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
+
 	if (hdlc->proto->start)
 		hdlc->proto->start(dev);
 }
@@ -84,6 +85,7 @@ static inline void hdlc_proto_start(struct net_device *dev)
 static inline void hdlc_proto_stop(struct net_device *dev)
 {
 	hdlc_device *hdlc = dev_to_hdlc(dev);
+
 	if (hdlc->proto->stop)
 		hdlc->proto->stop(dev);
 }
@@ -150,6 +152,7 @@ int hdlc_open(struct net_device *dev)
 
 	if (hdlc->proto->open) {
 		int result = hdlc->proto->open(dev);
+
 		if (result)
 			return result;
 	}
@@ -245,6 +248,7 @@ static void hdlc_setup(struct net_device *dev)
 struct net_device *alloc_hdlcdev(void *priv)
 {
 	struct net_device *dev;
+
 	dev = alloc_netdev(sizeof(struct hdlc_device), "hdlc%d",
 			   NET_NAME_UNKNOWN, hdlc_setup);
 	if (dev)
-- 
2.8.1

[PATCH net-next 3/7] net: hdlc: fix an code style issue about "foo* bar"

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

Fix the checkpatch error as "foo* bar" and should be "foo *bar".

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/wan/hdlc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index 6199a70..3cdb641 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -36,7 +36,7 @@
 #include <linux/slab.h>
 #include <net/net_namespace.h>
 
-static const char* version = "HDLC support module revision 1.22";
+static const char *version = "HDLC support module revision 1.22";
 
 #undef DEBUG_LINK
 
-- 
2.8.1

[PATCH net-next 4/7] net: hdlc: fix an code style issue about EXPORT_SYMBOL(foo)

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

According to the chackpatch.pl,
EXPORT_SYMBOL(foo); should immediately follow its function/variable.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/wan/hdlc.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index 3cdb641..13388ba 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -73,6 +73,7 @@ netdev_tx_t hdlc_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	return hdlc->xmit(skb, dev); /* call hardware driver directly */
 }
+EXPORT_SYMBOL(hdlc_start_xmit);
 
 static inline void hdlc_proto_start(struct net_device *dev)
 {
@@ -170,6 +171,7 @@ int hdlc_open(struct net_device *dev)
 	spin_unlock_irq(&hdlc->state_lock);
 	return 0;
 }
+EXPORT_SYMBOL(hdlc_open);
 
 /* Must be called by hardware driver when HDLC device is being closed */
 void hdlc_close(struct net_device *dev)
@@ -191,6 +193,7 @@ void hdlc_close(struct net_device *dev)
 	if (hdlc->proto->close)
 		hdlc->proto->close(dev);
 }
+EXPORT_SYMBOL(hdlc_close);
 
 int hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
@@ -215,6 +218,7 @@ int hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	}
 	return -EINVAL;
 }
+EXPORT_SYMBOL(hdlc_ioctl);
 
 static const struct header_ops hdlc_null_ops;
 
@@ -255,6 +259,7 @@ struct net_device *alloc_hdlcdev(void *priv)
 		dev_to_hdlc(dev)->priv = priv;
 	return dev;
 }
+EXPORT_SYMBOL(alloc_hdlcdev);
 
 void unregister_hdlc_device(struct net_device *dev)
 {
@@ -263,6 +268,7 @@ void unregister_hdlc_device(struct net_device *dev)
 	unregister_netdevice(dev);
 	rtnl_unlock();
 }
+EXPORT_SYMBOL(unregister_hdlc_device);
 
 int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto,
 			 size_t size)
@@ -287,6 +293,7 @@ int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto,
 
 	return 0;
 }
+EXPORT_SYMBOL(attach_hdlc_protocol);
 
 int detach_hdlc_protocol(struct net_device *dev)
 {
@@ -312,6 +319,7 @@ int detach_hdlc_protocol(struct net_device *dev)
 
 	return 0;
 }
+EXPORT_SYMBOL(detach_hdlc_protocol);
 
 void register_hdlc_protocol(struct hdlc_proto *proto)
 {
@@ -320,6 +328,7 @@ void register_hdlc_protocol(struct hdlc_proto *proto)
 	first_proto = proto;
 	rtnl_unlock();
 }
+EXPORT_SYMBOL(register_hdlc_protocol);
 
 void unregister_hdlc_protocol(struct hdlc_proto *proto)
 {
@@ -334,22 +343,12 @@ void unregister_hdlc_protocol(struct hdlc_proto *proto)
 	*p = proto->next;
 	rtnl_unlock();
 }
+EXPORT_SYMBOL(unregister_hdlc_protocol);
 
 MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
 MODULE_DESCRIPTION("HDLC support module");
 MODULE_LICENSE("GPL v2");
 
-EXPORT_SYMBOL(hdlc_start_xmit);
-EXPORT_SYMBOL(hdlc_open);
-EXPORT_SYMBOL(hdlc_close);
-EXPORT_SYMBOL(hdlc_ioctl);
-EXPORT_SYMBOL(alloc_hdlcdev);
-EXPORT_SYMBOL(unregister_hdlc_device);
-EXPORT_SYMBOL(register_hdlc_protocol);
-EXPORT_SYMBOL(unregister_hdlc_protocol);
-EXPORT_SYMBOL(attach_hdlc_protocol);
-EXPORT_SYMBOL(detach_hdlc_protocol);
-
 static struct packet_type hdlc_packet_type __read_mostly = {
 	.type = cpu_to_be16(ETH_P_HDLC),
 	.func = hdlc_rcv,
-- 
2.8.1

[PATCH net-next 5/7] net: hdlc: replace comparison to NULL with "!param"

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

According to the chackpatch.pl, comparison to NULL could
be written "!param".

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/wan/hdlc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index 13388ba..fefc732 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -148,7 +148,7 @@ int hdlc_open(struct net_device *dev)
 	       hdlc->carrier, hdlc->open);
 #endif
 
-	if (hdlc->proto == NULL)
+	if (!hdlc->proto)
 		return -ENOSYS;	/* no protocol attached */
 
 	if (hdlc->proto->open) {
@@ -284,7 +284,7 @@ int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto,
 
 	if (size) {
 		dev_to_hdlc(dev)->state = kmalloc(size, GFP_KERNEL);
-		if (dev_to_hdlc(dev)->state == NULL) {
+		if (!dev_to_hdlc(dev)->state) {
 			module_put(proto->module);
 			return -ENOBUFS;
 		}
-- 
2.8.1

[PATCH net-next 6/7] net: hdlc: move out assignment in if condition

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

Should not use assignment in if condition.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/wan/hdlc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index fefc732..f48d70e 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -212,7 +212,8 @@ int hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	/* Not handled by currently attached protocol (if any) */
 
 	while (proto) {
-		if ((result = proto->ioctl(dev, ifr)) != -EINVAL)
+		result = proto->ioctl(dev, ifr);
+		if (result != -EINVAL)
 			return result;
 		proto = proto->next;
 	}
@@ -363,7 +364,8 @@ static int __init hdlc_module_init(void)
 	int result;
 
 	pr_info("%s\n", version);
-	if ((result = register_netdevice_notifier(&hdlc_notifier)) != 0)
+	result = register_netdevice_notifier(&hdlc_notifier);
+	if (result)
 		return result;
 	dev_add_pack(&hdlc_packet_type);
 	return 0;
-- 
2.8.1

[PATCH net-next 7/7] net: hdlc: add braces {} to all arms of the statement

[Guangbin Huang]

From: Peng Li <lipeng321@huawei.com>

Braces {} should be used on all arms of this statement.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/wan/hdlc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index f48d70e..dd6312b 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -163,8 +163,9 @@ int hdlc_open(struct net_device *dev)
 	if (hdlc->carrier) {
 		netdev_info(dev, "Carrier detected\n");
 		hdlc_proto_start(dev);
-	} else
+	} else {
 		netdev_info(dev, "No carrier\n");
+	}
 
 	hdlc->open = 1;
 
-- 
2.8.1

Re: [PATCH net-next 0/7] net: hdlc: clean up some code style issues

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net-next.git (refs/heads/master):

On Tue, 1 Jun 2021 21:23:15 +0800 you wrote:
> From: Peng Li <lipeng321@huawei.com>
> 
> This patchset clean up some code style issues.
> 
> Peng Li (7):
>   net: hdlc: remove redundant blank lines
>   net: hdlc: add blank line after declarations
>   net: hdlc: fix an code style issue about "foo* bar"
>   net: hdlc: fix an code style issue about EXPORT_SYMBOL(foo)
>   net: hdlc: replace comparison to NULL with "!param"
>   net: hdlc: move out assignment in if condition
>   net: hdlc: add braces {} to all arms of the statement
> 
> [...]

Here is the summary with links:
  - [net-next,1/7] net: hdlc: remove redundant blank lines
    https://git.kernel.org/netdev/net-next/c/30cd458be244
  - [net-next,2/7] net: hdlc: add blank line after declarations
    https://git.kernel.org/netdev/net-next/c/04cc04f07bb2
  - [net-next,3/7] net: hdlc: fix an code style issue about "foo* bar"
    https://git.kernel.org/netdev/net-next/c/68fd73925bce
  - [net-next,4/7] net: hdlc: fix an code style issue about EXPORT_SYMBOL(foo)
    https://git.kernel.org/netdev/net-next/c/01506939cc84
  - [net-next,5/7] net: hdlc: replace comparison to NULL with "!param"
    https://git.kernel.org/netdev/net-next/c/387847f295c8
  - [net-next,6/7] net: hdlc: move out assignment in if condition
    https://git.kernel.org/netdev/net-next/c/e50eb6c3578c
  - [net-next,7/7] net: hdlc: add braces {} to all arms of the statement
    https://git.kernel.org/netdev/net-next/c/1bb521825265

You are awesome, thank you!
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