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Message-Id: <20220216021130.171786-7-mathew.j.martineau@linux.intel.com>
Date: Tue, 15 Feb 2022 18:11:28 -0800
From: Mat Martineau <mathew.j.martineau@...ux.intel.com>
To: netdev@...r.kernel.org
Cc: Paolo Abeni <pabeni@...hat.com>, davem@...emloft.net,
kuba@...nel.org, matthieu.baerts@...sares.net,
mptcp@...ts.linux.dev,
Mat Martineau <mathew.j.martineau@...ux.intel.com>
Subject: [PATCH net-next 6/8] mptcp: constify a bunch of of helpers
From: Paolo Abeni <pabeni@...hat.com>
A few pm-related helpers don't touch arguments which lacking
the const modifier, let's constify them.
Signed-off-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@...ux.intel.com>
---
net/mptcp/pm.c | 4 ++--
net/mptcp/pm_netlink.c | 42 +++++++++++++++++++++---------------------
net/mptcp/protocol.h | 18 +++++++++---------
3 files changed, 32 insertions(+), 32 deletions(-)
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index ef6e4adeb0e5..8755b81896de 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -219,7 +219,7 @@ void mptcp_pm_add_addr_received(struct mptcp_sock *msk,
}
void mptcp_pm_add_addr_echoed(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr)
+ const struct mptcp_addr_info *addr)
{
struct mptcp_pm_data *pm = &msk->pm;
@@ -275,7 +275,7 @@ void mptcp_pm_mp_fail_received(struct sock *sk, u64 fail_seq)
/* path manager helpers */
-bool mptcp_pm_add_addr_signal(struct mptcp_sock *msk, struct sk_buff *skb,
+bool mptcp_pm_add_addr_signal(struct mptcp_sock *msk, const struct sk_buff *skb,
unsigned int opt_size, unsigned int remaining,
struct mptcp_addr_info *addr, bool *echo,
bool *drop_other_suboptions)
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index e4fd54fff1d2..9aeee30e50ba 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -120,7 +120,7 @@ static void remote_address(const struct sock_common *skc,
}
static bool lookup_subflow_by_saddr(const struct list_head *list,
- struct mptcp_addr_info *saddr)
+ const struct mptcp_addr_info *saddr)
{
struct mptcp_subflow_context *subflow;
struct mptcp_addr_info cur;
@@ -138,7 +138,7 @@ static bool lookup_subflow_by_saddr(const struct list_head *list,
}
static bool lookup_subflow_by_daddr(const struct list_head *list,
- struct mptcp_addr_info *daddr)
+ const struct mptcp_addr_info *daddr)
{
struct mptcp_subflow_context *subflow;
struct mptcp_addr_info cur;
@@ -157,10 +157,10 @@ static bool lookup_subflow_by_daddr(const struct list_head *list,
static struct mptcp_pm_addr_entry *
select_local_address(const struct pm_nl_pernet *pernet,
- struct mptcp_sock *msk)
+ const struct mptcp_sock *msk)
{
+ const struct sock *sk = (const struct sock *)msk;
struct mptcp_pm_addr_entry *entry, *ret = NULL;
- struct sock *sk = (struct sock *)msk;
msk_owned_by_me(msk);
@@ -190,7 +190,7 @@ select_local_address(const struct pm_nl_pernet *pernet,
}
static struct mptcp_pm_addr_entry *
-select_signal_address(struct pm_nl_pernet *pernet, struct mptcp_sock *msk)
+select_signal_address(struct pm_nl_pernet *pernet, const struct mptcp_sock *msk)
{
struct mptcp_pm_addr_entry *entry, *ret = NULL;
@@ -214,16 +214,16 @@ select_signal_address(struct pm_nl_pernet *pernet, struct mptcp_sock *msk)
return ret;
}
-unsigned int mptcp_pm_get_add_addr_signal_max(struct mptcp_sock *msk)
+unsigned int mptcp_pm_get_add_addr_signal_max(const struct mptcp_sock *msk)
{
- struct pm_nl_pernet *pernet;
+ const struct pm_nl_pernet *pernet;
- pernet = net_generic(sock_net((struct sock *)msk), pm_nl_pernet_id);
+ pernet = net_generic(sock_net((const struct sock *)msk), pm_nl_pernet_id);
return READ_ONCE(pernet->add_addr_signal_max);
}
EXPORT_SYMBOL_GPL(mptcp_pm_get_add_addr_signal_max);
-unsigned int mptcp_pm_get_add_addr_accept_max(struct mptcp_sock *msk)
+unsigned int mptcp_pm_get_add_addr_accept_max(const struct mptcp_sock *msk)
{
struct pm_nl_pernet *pernet;
@@ -232,7 +232,7 @@ unsigned int mptcp_pm_get_add_addr_accept_max(struct mptcp_sock *msk)
}
EXPORT_SYMBOL_GPL(mptcp_pm_get_add_addr_accept_max);
-unsigned int mptcp_pm_get_subflows_max(struct mptcp_sock *msk)
+unsigned int mptcp_pm_get_subflows_max(const struct mptcp_sock *msk)
{
struct pm_nl_pernet *pernet;
@@ -241,7 +241,7 @@ unsigned int mptcp_pm_get_subflows_max(struct mptcp_sock *msk)
}
EXPORT_SYMBOL_GPL(mptcp_pm_get_subflows_max);
-unsigned int mptcp_pm_get_local_addr_max(struct mptcp_sock *msk)
+unsigned int mptcp_pm_get_local_addr_max(const struct mptcp_sock *msk)
{
struct pm_nl_pernet *pernet;
@@ -264,8 +264,8 @@ bool mptcp_pm_nl_check_work_pending(struct mptcp_sock *msk)
}
struct mptcp_pm_add_entry *
-mptcp_lookup_anno_list_by_saddr(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr)
+mptcp_lookup_anno_list_by_saddr(const struct mptcp_sock *msk,
+ const struct mptcp_addr_info *addr)
{
struct mptcp_pm_add_entry *entry;
@@ -346,7 +346,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer)
struct mptcp_pm_add_entry *
mptcp_pm_del_add_timer(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr, bool check_id)
+ const struct mptcp_addr_info *addr, bool check_id)
{
struct mptcp_pm_add_entry *entry;
struct sock *sk = (struct sock *)msk;
@@ -364,7 +364,7 @@ mptcp_pm_del_add_timer(struct mptcp_sock *msk,
}
static bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk,
- struct mptcp_pm_addr_entry *entry)
+ const struct mptcp_pm_addr_entry *entry)
{
struct mptcp_pm_add_entry *add_entry = NULL;
struct sock *sk = (struct sock *)msk;
@@ -410,8 +410,8 @@ void mptcp_pm_free_anno_list(struct mptcp_sock *msk)
}
}
-static bool lookup_address_in_vec(struct mptcp_addr_info *addrs, unsigned int nr,
- struct mptcp_addr_info *addr)
+static bool lookup_address_in_vec(const struct mptcp_addr_info *addrs, unsigned int nr,
+ const struct mptcp_addr_info *addr)
{
int i;
@@ -493,9 +493,9 @@ __lookup_addr(struct pm_nl_pernet *pernet, const struct mptcp_addr_info *info,
}
static int
-lookup_id_by_addr(struct pm_nl_pernet *pernet, const struct mptcp_addr_info *addr)
+lookup_id_by_addr(const struct pm_nl_pernet *pernet, const struct mptcp_addr_info *addr)
{
- struct mptcp_pm_addr_entry *entry;
+ const struct mptcp_pm_addr_entry *entry;
int ret = -1;
rcu_read_lock();
@@ -1281,7 +1281,7 @@ int mptcp_pm_get_flags_and_ifindex_by_id(struct net *net, unsigned int id,
}
static bool remove_anno_list_by_saddr(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr)
+ const struct mptcp_addr_info *addr)
{
struct mptcp_pm_add_entry *entry;
@@ -1296,7 +1296,7 @@ static bool remove_anno_list_by_saddr(struct mptcp_sock *msk,
}
static bool mptcp_pm_remove_anno_addr(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr,
+ const struct mptcp_addr_info *addr,
bool force)
{
struct mptcp_rm_list list = { .nr = 0 };
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index e381054910d0..86910f20486a 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -742,7 +742,7 @@ void mptcp_pm_subflow_check_next(struct mptcp_sock *msk, const struct sock *ssk,
void mptcp_pm_add_addr_received(struct mptcp_sock *msk,
const struct mptcp_addr_info *addr);
void mptcp_pm_add_addr_echoed(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr);
+ const struct mptcp_addr_info *addr);
void mptcp_pm_add_addr_send_ack(struct mptcp_sock *msk);
void mptcp_pm_nl_addr_send_ack(struct mptcp_sock *msk);
void mptcp_pm_rm_addr_received(struct mptcp_sock *msk,
@@ -753,10 +753,10 @@ void mptcp_pm_free_anno_list(struct mptcp_sock *msk);
bool mptcp_pm_sport_in_anno_list(struct mptcp_sock *msk, const struct sock *sk);
struct mptcp_pm_add_entry *
mptcp_pm_del_add_timer(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr, bool check_id);
+ const struct mptcp_addr_info *addr, bool check_id);
struct mptcp_pm_add_entry *
-mptcp_lookup_anno_list_by_saddr(struct mptcp_sock *msk,
- struct mptcp_addr_info *addr);
+mptcp_lookup_anno_list_by_saddr(const struct mptcp_sock *msk,
+ const struct mptcp_addr_info *addr);
int mptcp_pm_get_flags_and_ifindex_by_id(struct net *net, unsigned int id,
u8 *flags, int *ifindex);
@@ -815,7 +815,7 @@ static inline int mptcp_rm_addr_len(const struct mptcp_rm_list *rm_list)
return TCPOLEN_MPTCP_RM_ADDR_BASE + roundup(rm_list->nr - 1, 4) + 1;
}
-bool mptcp_pm_add_addr_signal(struct mptcp_sock *msk, struct sk_buff *skb,
+bool mptcp_pm_add_addr_signal(struct mptcp_sock *msk, const struct sk_buff *skb,
unsigned int opt_size, unsigned int remaining,
struct mptcp_addr_info *addr, bool *echo,
bool *drop_other_suboptions);
@@ -829,10 +829,10 @@ void mptcp_pm_nl_work(struct mptcp_sock *msk);
void mptcp_pm_nl_rm_subflow_received(struct mptcp_sock *msk,
const struct mptcp_rm_list *rm_list);
int mptcp_pm_nl_get_local_id(struct mptcp_sock *msk, struct sock_common *skc);
-unsigned int mptcp_pm_get_add_addr_signal_max(struct mptcp_sock *msk);
-unsigned int mptcp_pm_get_add_addr_accept_max(struct mptcp_sock *msk);
-unsigned int mptcp_pm_get_subflows_max(struct mptcp_sock *msk);
-unsigned int mptcp_pm_get_local_addr_max(struct mptcp_sock *msk);
+unsigned int mptcp_pm_get_add_addr_signal_max(const struct mptcp_sock *msk);
+unsigned int mptcp_pm_get_add_addr_accept_max(const struct mptcp_sock *msk);
+unsigned int mptcp_pm_get_subflows_max(const struct mptcp_sock *msk);
+unsigned int mptcp_pm_get_local_addr_max(const struct mptcp_sock *msk);
void mptcp_sockopt_sync(struct mptcp_sock *msk, struct sock *ssk);
void mptcp_sockopt_sync_locked(struct mptcp_sock *msk, struct sock *ssk);
--
2.35.1
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