diff mbox series

[mptcp-next,v2,12/36] mptcp: change info of get_addr as const

Message ID c099997f32d07dbd2c9db09a392cf6868f397f97.1729588019.git.tanggeliang@kylinos.cn (mailing list archive)
State Superseded, archived
Delegated to: Matthieu Baerts
Headers show
Series BPF path manager | expand

Checks

Context Check Description
matttbe/checkpatch success total: 0 errors, 0 warnings, 0 checks, 41 lines checked
matttbe/shellcheck success MPTCP selftests files have not been modified
matttbe/build warning Build error with: make C=1 net/mptcp/bpf.o
matttbe/KVM_Validation__normal success Success! ✅
matttbe/KVM_Validation__debug success Success! ✅
matttbe/KVM_Validation__btf-normal__only_bpftest_all_ success Success! ✅
matttbe/KVM_Validation__btf-debug__only_bpftest_all_ success Success! ✅

Commit Message

Geliang Tang Oct. 22, 2024, 9:14 a.m. UTC
From: Geliang Tang <tanggeliang@kylinos.cn>

get_addr() interfeces will be invoked by dump_addr(), which using const
parameters "info", so this patch changes "info" parameters of get_addr()
as const too.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
---
 net/mptcp/pm_netlink.c   | 9 ++++++---
 net/mptcp/pm_userspace.c | 2 +-
 net/mptcp/protocol.h     | 2 +-
 3 files changed, 8 insertions(+), 5 deletions(-)

Comments

Matthieu Baerts (NGI0) Oct. 31, 2024, 6:41 p.m. UTC | #1
Hi Geliang,

On 22/10/2024 11:14, Geliang Tang wrote:
> From: Geliang Tang <tanggeliang@kylinos.cn>
> 
> get_addr() interfeces will be invoked by dump_addr(), which using const

(typo: s/interfeces/interfaces/)

> parameters "info", so this patch changes "info" parameters of get_addr()
> as const too.
> 
> Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
> ---
>  net/mptcp/pm_netlink.c   | 9 ++++++---
>  net/mptcp/pm_userspace.c | 2 +-
>  net/mptcp/protocol.h     | 2 +-
>  3 files changed, 8 insertions(+), 5 deletions(-)
> 
> diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
> index 064fe4d494eb..02e4dda0dc13 100644
> --- a/net/mptcp/pm_netlink.c
> +++ b/net/mptcp/pm_netlink.c
> @@ -1793,12 +1793,15 @@ int mptcp_nl_fill_addr(struct sk_buff *skb,
>  }
>  
>  static int mptcp_pm_nl_get_addr(u8 id, struct mptcp_pm_addr_entry *addr,
> -				struct genl_info *info)
> +				const struct genl_info *info)
>  {
> -	struct pm_nl_pernet *pernet = genl_info_pm_nl(info);
> +	struct net *net = genl_info_net(info);
>  	struct mptcp_pm_addr_entry *entry;
> +	struct pm_nl_pernet *pernet;
>  	int ret = -EINVAL;
>  
> +	pernet = pm_nl_get_pernet(net);

Please mention this modification in the commit message: you didn't only
add the 'const' attribute, you had to do some adaptations.

I guess you can no longer use genl_info_pm_nl() because it doesn't
accept a 'const' variable, but that's OK to get pernet via
genl_info_net(), right? I think that's clearer if we don't have to guess.

Cheers,
Matt
diff mbox series

Patch

diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 064fe4d494eb..02e4dda0dc13 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1793,12 +1793,15 @@  int mptcp_nl_fill_addr(struct sk_buff *skb,
 }
 
 static int mptcp_pm_nl_get_addr(u8 id, struct mptcp_pm_addr_entry *addr,
-				struct genl_info *info)
+				const struct genl_info *info)
 {
-	struct pm_nl_pernet *pernet = genl_info_pm_nl(info);
+	struct net *net = genl_info_net(info);
 	struct mptcp_pm_addr_entry *entry;
+	struct pm_nl_pernet *pernet;
 	int ret = -EINVAL;
 
+	pernet = pm_nl_get_pernet(net);
+
 	spin_lock_bh(&pernet->lock);
 	entry = __lookup_addr_by_id(pernet, id);
 	if (entry) {
@@ -1811,7 +1814,7 @@  static int mptcp_pm_nl_get_addr(u8 id, struct mptcp_pm_addr_entry *addr,
 }
 
 static int mptcp_pm_get_addr(u8 id, struct mptcp_pm_addr_entry *addr,
-			     struct genl_info *info)
+			     const struct genl_info *info)
 {
 	if (info->attrs[MPTCP_PM_ATTR_TOKEN])
 		return mptcp_userspace_pm_get_addr(id, addr, info);
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c
index dd2ecc9ee6d5..c10794154187 100644
--- a/net/mptcp/pm_userspace.c
+++ b/net/mptcp/pm_userspace.c
@@ -633,7 +633,7 @@  int mptcp_userspace_pm_dump_addr(struct sk_buff *msg,
 }
 
 int mptcp_userspace_pm_get_addr(u8 id, struct mptcp_pm_addr_entry *addr,
-				struct genl_info *info)
+				const struct genl_info *info)
 {
 	struct mptcp_pm_addr_entry *entry;
 	struct mptcp_sock *msk;
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index ffc18646976b..8282a6355765 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -1129,7 +1129,7 @@  bool mptcp_userspace_pm_is_backup(struct mptcp_sock *msk, struct mptcp_addr_info
 int mptcp_userspace_pm_dump_addr(struct sk_buff *msg,
 				 struct netlink_callback *cb);
 int mptcp_userspace_pm_get_addr(u8 id, struct mptcp_pm_addr_entry *addr,
-				struct genl_info *info);
+				const struct genl_info *info);
 
 static inline u8 subflow_get_local_id(const struct mptcp_subflow_context *subflow)
 {