2023-07-10 06:57:22

by Su Hui

[permalink] [raw]
Subject: [PATCH net-next v2 01/10] net: wan: Remove unnecessary (void*) conversions

From: wuych <[email protected]>

Pointer variables of void * type do not require type cast.

Signed-off-by: wuych <[email protected]>
---
drivers/net/wan/fsl_ucc_hdlc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
index 47c2ad7a3e42..73c73d8f4bb2 100644
--- a/drivers/net/wan/fsl_ucc_hdlc.c
+++ b/drivers/net/wan/fsl_ucc_hdlc.c
@@ -350,11 +350,11 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
- struct ucc_hdlc_private *priv = (struct ucc_hdlc_private *)hdlc->priv;
- struct qe_bd *bd;
- u16 bd_status;
+ struct ucc_hdlc_private *priv = hdlc->priv;
unsigned long flags;
__be16 *proto_head;
+ struct qe_bd *bd;
+ u16 bd_status;

switch (dev->type) {
case ARPHRD_RAWHDLC:
--
2.30.2



2023-07-10 07:36:15

by Dan Carpenter

[permalink] [raw]
Subject: Re: [PATCH net-next v2 01/10] net: wan: Remove unnecessary (void*) conversions

On Mon, Jul 10, 2023 at 02:39:33PM +0800, Su Hui wrote:
> From: wuych <[email protected]>
^^^^^
This doesn't look like a real name.

>
> Pointer variables of void * type do not require type cast.
>
> Signed-off-by: wuych <[email protected]>
> ---
> drivers/net/wan/fsl_ucc_hdlc.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
> index 47c2ad7a3e42..73c73d8f4bb2 100644
> --- a/drivers/net/wan/fsl_ucc_hdlc.c
> +++ b/drivers/net/wan/fsl_ucc_hdlc.c
> @@ -350,11 +350,11 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
> static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
> {
> hdlc_device *hdlc = dev_to_hdlc(dev);
> - struct ucc_hdlc_private *priv = (struct ucc_hdlc_private *)hdlc->priv;
> - struct qe_bd *bd;
> - u16 bd_status;
> + struct ucc_hdlc_private *priv = hdlc->priv;
> unsigned long flags;
> __be16 *proto_head;
> + struct qe_bd *bd;
> + u16 bd_status;

Don't move the other variables around. That's unrelated to the cast.
(Same applies to all the other patches).

regards,
dan carpenter


2023-07-10 07:58:46

by Wu Yunchuan

[permalink] [raw]
Subject: Re: [PATCH net-next v2 01/10] net: wan: Remove unnecessary (void*) conversions

On 2023/7/10 15:29, Dan Carpenter wrote:
> On Mon, Jul 10, 2023 at 02:39:33PM +0800, Su Hui wrote:
>> From: wuych <[email protected]>
> ^^^^^
> This doesn't look like a real name.

Hi, Dan,

My full name is wuyunchan, but that is too long.
So I use the wuych as simplification.
I will change it to my full name, thanks for your adivce!
>
>> Pointer variables of void * type do not require type cast.
>>
>> Signed-off-by: wuych <[email protected]>
>> ---
>> drivers/net/wan/fsl_ucc_hdlc.c | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
>> index 47c2ad7a3e42..73c73d8f4bb2 100644
>> --- a/drivers/net/wan/fsl_ucc_hdlc.c
>> +++ b/drivers/net/wan/fsl_ucc_hdlc.c
>> @@ -350,11 +350,11 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
>> static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
>> {
>> hdlc_device *hdlc = dev_to_hdlc(dev);
>> - struct ucc_hdlc_private *priv = (struct ucc_hdlc_private *)hdlc->priv;
>> - struct qe_bd *bd;
>> - u16 bd_status;
>> + struct ucc_hdlc_private *priv = hdlc->priv;
>> unsigned long flags;
>> __be16 *proto_head;
>> + struct qe_bd *bd;
>> + u16 bd_status;
> Don't move the other variables around. That's unrelated to the cast.
> (Same applies to all the other patches).

I want to move the declarations to be reverse xmas tree.
Maybe moving them is more better?

wuych

>
> regards,
> dan carpenter
>

2023-07-10 17:20:13

by Andrew Lunn

[permalink] [raw]
Subject: Re: [PATCH net-next v2 01/10] net: wan: Remove unnecessary (void*) conversions

On Mon, Jul 10, 2023 at 02:39:33PM +0800, Su Hui wrote:
> From: wuych <[email protected]>
>
> Pointer variables of void * type do not require type cast.
>
> Signed-off-by: wuych <[email protected]>
> ---
> drivers/net/wan/fsl_ucc_hdlc.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
> index 47c2ad7a3e42..73c73d8f4bb2 100644
> --- a/drivers/net/wan/fsl_ucc_hdlc.c
> +++ b/drivers/net/wan/fsl_ucc_hdlc.c
> @@ -350,11 +350,11 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
> static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
> {
> hdlc_device *hdlc = dev_to_hdlc(dev);
> - struct ucc_hdlc_private *priv = (struct ucc_hdlc_private *)hdlc->priv;
> - struct qe_bd *bd;
> - u16 bd_status;
> + struct ucc_hdlc_private *priv = hdlc->priv;
> unsigned long flags;
> __be16 *proto_head;
> + struct qe_bd *bd;
> + u16 bd_status;

When dealing with existing broken reverse Christmas tree, please don't
make it worse with a change. But actually fixing it should be in a
different patch.

We want patches to be obviously correct. By removing the cast and
moving variables around, it is less obvious it is correct, than having
two patches.

Andrew

2023-07-11 01:41:35

by Wu Yunchuan

[permalink] [raw]
Subject: Re: [PATCH net-next v2 01/10] net: wan: Remove unnecessary (void*) conversions

On 2023/7/11 00:34, Andrew Lunn wrote:
> On Mon, Jul 10, 2023 at 02:39:33PM +0800, Su Hui wrote:
>> From: wuych <[email protected]>
>>
>> Pointer variables of void * type do not require type cast.
>>
>> Signed-off-by: wuych <[email protected]>
>> ---
>> drivers/net/wan/fsl_ucc_hdlc.c | 6 +++---
>> 1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c
>> index 47c2ad7a3e42..73c73d8f4bb2 100644
>> --- a/drivers/net/wan/fsl_ucc_hdlc.c
>> +++ b/drivers/net/wan/fsl_ucc_hdlc.c
>> @@ -350,11 +350,11 @@ static int uhdlc_init(struct ucc_hdlc_private *priv)
>> static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev)
>> {
>> hdlc_device *hdlc = dev_to_hdlc(dev);
>> - struct ucc_hdlc_private *priv = (struct ucc_hdlc_private *)hdlc->priv;
>> - struct qe_bd *bd;
>> - u16 bd_status;
>> + struct ucc_hdlc_private *priv = hdlc->priv;
>> unsigned long flags;
>> __be16 *proto_head;
>> + struct qe_bd *bd;
>> + u16 bd_status;
> When dealing with existing broken reverse Christmas tree, please don't
> make it worse with a change. But actually fixing it should be in a
> different patch.
>
> We want patches to be obviously correct. By removing the cast and
> moving variables around, it is less obvious it is correct, than having
> two patches.
Got it, thanks.
I will resend the v3 later  which remove the change of reverse Christmas
tree.
So sorry for this!

Wu Yunchuan

>
> Andrew