linux-kernel - Re: [PATCH net-next v2 03/10] net: ppp: Remove unnecessary (void*) conversions

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Date:   Fri, 14 Jul 2023 11:07:22 +0200
From:   Guillaume Nault <gnault@...hat.com>
To:     Su Hui <suhui@...china.com>
Cc:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, xeb@...l.ru, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        wuych <yunchuan@...china.com>
Subject: Re: [PATCH net-next v2 03/10] net: ppp: Remove unnecessary (void*)
 conversions

On Mon, Jul 10, 2023 at 02:40:27PM +0800, Su Hui wrote:
> From: wuych <yunchuan@...china.com>
> 
> Pointer variables of void * type do not require type cast.
> 
> Signed-off-by: wuych <yunchuan@...china.com>
> ---
>  drivers/net/ppp/pppoe.c | 4 ++--
>  drivers/net/ppp/pptp.c  | 4 ++--
>  2 files changed, 4 insertions(+), 4 deletions(-)

Reviewed-by: Guillaume Nault <gnault@...hat.com>

While there, you might want to also remove the useless casts in
net/l2tp/l2tp_ppp.c and net/atm/pppoatm.c.

> diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
> index 3b79c603b936..ba8b6bd8233c 100644
> --- a/drivers/net/ppp/pppoe.c
> +++ b/drivers/net/ppp/pppoe.c
> @@ -968,7 +968,7 @@ static int __pppoe_xmit(struct sock *sk, struct sk_buff *skb)
>   ***********************************************************************/
>  static int pppoe_xmit(struct ppp_channel *chan, struct sk_buff *skb)
>  {
> -	struct sock *sk = (struct sock *)chan->private;
> +	struct sock *sk = chan->private;
>  	return __pppoe_xmit(sk, skb);
>  }
>  
> @@ -976,7 +976,7 @@ static int pppoe_fill_forward_path(struct net_device_path_ctx *ctx,
>  				   struct net_device_path *path,
>  				   const struct ppp_channel *chan)
>  {
> -	struct sock *sk = (struct sock *)chan->private;
> +	struct sock *sk = chan->private;
>  	struct pppox_sock *po = pppox_sk(sk);
>  	struct net_device *dev = po->pppoe_dev;
>  
> diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
> index 32183f24e63f..6b3d3df99549 100644
> --- a/drivers/net/ppp/pptp.c
> +++ b/drivers/net/ppp/pptp.c
> @@ -148,7 +148,7 @@ static struct rtable *pptp_route_output(struct pppox_sock *po,
>  
>  static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb)
>  {
> -	struct sock *sk = (struct sock *) chan->private;
> +	struct sock *sk = chan->private;
>  	struct pppox_sock *po = pppox_sk(sk);
>  	struct net *net = sock_net(sk);
>  	struct pptp_opt *opt = &po->proto.pptp;
> @@ -575,7 +575,7 @@ static int pptp_create(struct net *net, struct socket *sock, int kern)
>  static int pptp_ppp_ioctl(struct ppp_channel *chan, unsigned int cmd,
>  	unsigned long arg)
>  {
> -	struct sock *sk = (struct sock *) chan->private;
> +	struct sock *sk = chan->private;
>  	struct pppox_sock *po = pppox_sk(sk);
>  	struct pptp_opt *opt = &po->proto.pptp;
>  	void __user *argp = (void __user *)arg;
> -- 
> 2.30.2
> 
>