disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/include/linux/netlink.h
..
..
@@ -34,8 +34,8 @@
34
34
 #define NETLINK_CREDS(skb)	(&NETLINK_CB((skb)).creds)
35
35
 
36
36
 
37
-extern void netlink_table_grab(void);
38
-extern void netlink_table_ungrab(void);
37
+void netlink_table_grab(void);
38
+void netlink_table_ungrab(void);
39
39
 
40
40
 #define NL_CFG_F_NONROOT_RECV	(1 << 0)
41
41
 #define NL_CFG_F_NONROOT_SEND	(1 << 1)
..
..
@@ -51,7 +51,7 @@
51
51
 	bool		(*compare)(struct net *net, struct sock *sk);
52
52
 };
53
53
 
54
-extern struct sock *__netlink_kernel_create(struct net *net, int unit,
54
+struct sock *__netlink_kernel_create(struct net *net, int unit,
55
55
 					    struct module *module,
56
56
 					    struct netlink_kernel_cfg *cfg);
57
57
 static inline struct sock *
..
..
@@ -68,12 +68,14 @@
68
68
  * @_msg: message string to report - don't access directly, use
69
69
  *	%NL_SET_ERR_MSG
70
70
  * @bad_attr: attribute with error
71
+ * @policy: policy for a bad attribute
71
72
  * @cookie: cookie data to return to userspace (for success)
72
73
  * @cookie_len: actual cookie data length
73
74
  */
74
75
 struct netlink_ext_ack {
75
76
 	const char *_msg;
76
77
 	const struct nlattr *bad_attr;
78
+	const struct nla_policy *policy;
77
79
 	u8 cookie[NETLINK_MAX_COOKIE_LEN];
78
80
 	u8 cookie_len;
79
81
 };
..
..
@@ -95,39 +97,70 @@
95
97
 #define NL_SET_ERR_MSG_MOD(extack, msg)			\
96
98
 	NL_SET_ERR_MSG((extack), KBUILD_MODNAME ": " msg)
97
99
 
98
-#define NL_SET_BAD_ATTR(extack, attr) do {		\
99
-	if ((extack))					\
100
+#define NL_SET_BAD_ATTR_POLICY(extack, attr, pol) do {	\
101
+	if ((extack)) {					\
100
102
 		(extack)->bad_attr = (attr);		\
101
-} while (0)
102
-
103
-#define NL_SET_ERR_MSG_ATTR(extack, attr, msg) do {	\
104
-	static const char __msg[] = msg;		\
105
-	struct netlink_ext_ack *__extack = (extack);	\
106
-							\
107
-	if (__extack) {					\
108
-		__extack->_msg = __msg;			\
109
-		__extack->bad_attr = (attr);		\
103
+		(extack)->policy = (pol);		\
110
104
 	}						\
111
105
 } while (0)
112
106
 
113
-extern void netlink_kernel_release(struct sock *sk);
114
-extern int __netlink_change_ngroups(struct sock *sk, unsigned int groups);
115
-extern int netlink_change_ngroups(struct sock *sk, unsigned int groups);
116
-extern void __netlink_clear_multicast_users(struct sock *sk, unsigned int group);
117
-extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err,
118
-			const struct netlink_ext_ack *extack);
119
-extern int netlink_has_listeners(struct sock *sk, unsigned int group);
107
+#define NL_SET_BAD_ATTR(extack, attr) NL_SET_BAD_ATTR_POLICY(extack, attr, NULL)
120
108
 
121
-extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 portid, int nonblock);
122
-extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 portid,
123
-			     __u32 group, gfp_t allocation);
124
-extern int netlink_broadcast_filtered(struct sock *ssk, struct sk_buff *skb,
125
-	__u32 portid, __u32 group, gfp_t allocation,
126
-	int (*filter)(struct sock *dsk, struct sk_buff *skb, void *data),
127
-	void *filter_data);
128
-extern int netlink_set_err(struct sock *ssk, __u32 portid, __u32 group, int code);
129
-extern int netlink_register_notifier(struct notifier_block *nb);
130
-extern int netlink_unregister_notifier(struct notifier_block *nb);
109
+#define NL_SET_ERR_MSG_ATTR_POL(extack, attr, pol, msg) do {	\
110
+	static const char __msg[] = msg;			\
111
+	struct netlink_ext_ack *__extack = (extack);		\
112
+								\
113
+	if (__extack) {						\
114
+		__extack->_msg = __msg;				\
115
+		__extack->bad_attr = (attr);			\
116
+		__extack->policy = (pol);			\
117
+	}							\
118
+} while (0)
119
+
120
+#define NL_SET_ERR_MSG_ATTR(extack, attr, msg)		\
121
+	NL_SET_ERR_MSG_ATTR_POL(extack, attr, NULL, msg)
122
+
123
+static inline void nl_set_extack_cookie_u64(struct netlink_ext_ack *extack,
124
+					    u64 cookie)
125
+{
126
+	u64 __cookie = cookie;
127
+
128
+	if (!extack)
129
+		return;
130
+	memcpy(extack->cookie, &__cookie, sizeof(__cookie));
131
+	extack->cookie_len = sizeof(__cookie);
132
+}
133
+
134
+static inline void nl_set_extack_cookie_u32(struct netlink_ext_ack *extack,
135
+					    u32 cookie)
136
+{
137
+	u32 __cookie = cookie;
138
+
139
+	if (!extack)
140
+		return;
141
+	memcpy(extack->cookie, &__cookie, sizeof(__cookie));
142
+	extack->cookie_len = sizeof(__cookie);
143
+}
144
+
145
+void netlink_kernel_release(struct sock *sk);
146
+int __netlink_change_ngroups(struct sock *sk, unsigned int groups);
147
+int netlink_change_ngroups(struct sock *sk, unsigned int groups);
148
+void __netlink_clear_multicast_users(struct sock *sk, unsigned int group);
149
+void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err,
150
+		 const struct netlink_ext_ack *extack);
151
+int netlink_has_listeners(struct sock *sk, unsigned int group);
152
+bool netlink_strict_get_check(struct sk_buff *skb);
153
+
154
+int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 portid, int nonblock);
155
+int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 portid,
156
+		      __u32 group, gfp_t allocation);
157
+int netlink_broadcast_filtered(struct sock *ssk, struct sk_buff *skb,
158
+			       __u32 portid, __u32 group, gfp_t allocation,
159
+			       int (*filter)(struct sock *dsk, struct sk_buff *skb, void *data),
160
+			       void *filter_data);
161
+int netlink_set_err(struct sock *ssk, __u32 portid, __u32 group, int code);
162
+int netlink_register_notifier(struct notifier_block *nb);
163
+int netlink_unregister_notifier(struct notifier_block *nb);
131
164
 
132
165
 /* finegrained unicast helpers: */
133
166
 struct sock *netlink_getsockbyfilp(struct file *filp);
..
..
@@ -176,10 +209,20 @@
176
209
 	void			*data;
177
210
 	/* the module that dump function belong to */
178
211
 	struct module		*module;
212
+	struct netlink_ext_ack	*extack;
179
213
 	u16			family;
180
-	u16			min_dump_alloc;
214
+	u16			answer_flags;
215
+	u32			min_dump_alloc;
181
216
 	unsigned int		prev_seq, seq;
182
-	long			args[6];
217
+	bool			strict_check;
218
+	union {
219
+		u8		ctx[48];
220
+
221
+		/* args is deprecated. Cast a struct over ctx instead
222
+		 * for proper type safety.
223
+		 */
224
+		long		args[6];
225
+	};
183
226
 };
184
227
 
185
228
 struct netlink_notify {
..
..
@@ -197,10 +240,10 @@
197
240
 	int (*done)(struct netlink_callback *);
198
241
 	void *data;
199
242
 	struct module *module;
200
-	u16 min_dump_alloc;
243
+	u32 min_dump_alloc;
201
244
 };
202
245
 
203
-extern int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
246
+int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
204
247
 				const struct nlmsghdr *nlh,
205
248
 				struct netlink_dump_control *control);
206
249
 static inline int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
..
..
@@ -219,8 +262,8 @@
219
262
 	struct list_head list;
220
263
 };
221
264
 
222
-extern int netlink_add_tap(struct netlink_tap *nt);
223
-extern int netlink_remove_tap(struct netlink_tap *nt);
265
+int netlink_add_tap(struct netlink_tap *nt);
266
+int netlink_remove_tap(struct netlink_tap *nt);
224
267
 
225
268
 bool __netlink_ns_capable(const struct netlink_skb_parms *nsp,
226
269
 			  struct user_namespace *ns, int cap);