netlink: constify struct nlattr * arg to parsing functions
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 3643bbb..46b7764 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -233,7 +233,7 @@
extern struct nlattr * nla_find(struct nlattr *head, int len, int attrtype);
extern size_t nla_strlcpy(char *dst, const struct nlattr *nla,
size_t dstsize);
-extern int nla_memcpy(void *dest, struct nlattr *src, int count);
+extern int nla_memcpy(void *dest, const struct nlattr *src, int count);
extern int nla_memcmp(const struct nlattr *nla, const void *data,
size_t size);
extern int nla_strcmp(const struct nlattr *nla, const char *str);
@@ -741,7 +741,7 @@
* See nla_parse()
*/
static inline int nla_parse_nested(struct nlattr *tb[], int maxtype,
- struct nlattr *nla,
+ const struct nlattr *nla,
const struct nla_policy *policy)
{
return nla_parse(tb, maxtype, nla_data(nla), nla_len(nla), policy);
@@ -875,7 +875,7 @@
* nla_get_u32 - return payload of u32 attribute
* @nla: u32 netlink attribute
*/
-static inline u32 nla_get_u32(struct nlattr *nla)
+static inline u32 nla_get_u32(const struct nlattr *nla)
{
return *(u32 *) nla_data(nla);
}
@@ -884,7 +884,7 @@
* nla_get_be32 - return payload of __be32 attribute
* @nla: __be32 netlink attribute
*/
-static inline __be32 nla_get_be32(struct nlattr *nla)
+static inline __be32 nla_get_be32(const struct nlattr *nla)
{
return *(__be32 *) nla_data(nla);
}
@@ -893,7 +893,7 @@
* nla_get_u16 - return payload of u16 attribute
* @nla: u16 netlink attribute
*/
-static inline u16 nla_get_u16(struct nlattr *nla)
+static inline u16 nla_get_u16(const struct nlattr *nla)
{
return *(u16 *) nla_data(nla);
}
@@ -902,7 +902,7 @@
* nla_get_be16 - return payload of __be16 attribute
* @nla: __be16 netlink attribute
*/
-static inline __be16 nla_get_be16(struct nlattr *nla)
+static inline __be16 nla_get_be16(const struct nlattr *nla)
{
return *(__be16 *) nla_data(nla);
}
@@ -911,7 +911,7 @@
* nla_get_le16 - return payload of __le16 attribute
* @nla: __le16 netlink attribute
*/
-static inline __le16 nla_get_le16(struct nlattr *nla)
+static inline __le16 nla_get_le16(const struct nlattr *nla)
{
return *(__le16 *) nla_data(nla);
}
@@ -920,7 +920,7 @@
* nla_get_u8 - return payload of u8 attribute
* @nla: u8 netlink attribute
*/
-static inline u8 nla_get_u8(struct nlattr *nla)
+static inline u8 nla_get_u8(const struct nlattr *nla)
{
return *(u8 *) nla_data(nla);
}
@@ -929,7 +929,7 @@
* nla_get_u64 - return payload of u64 attribute
* @nla: u64 netlink attribute
*/
-static inline u64 nla_get_u64(struct nlattr *nla)
+static inline u64 nla_get_u64(const struct nlattr *nla)
{
u64 tmp;
@@ -942,7 +942,7 @@
* nla_get_flag - return payload of flag attribute
* @nla: flag netlink attribute
*/
-static inline int nla_get_flag(struct nlattr *nla)
+static inline int nla_get_flag(const struct nlattr *nla)
{
return !!nla;
}
@@ -953,7 +953,7 @@
*
* Returns the number of milliseconds in jiffies.
*/
-static inline unsigned long nla_get_msecs(struct nlattr *nla)
+static inline unsigned long nla_get_msecs(const struct nlattr *nla)
{
u64 msecs = nla_get_u64(nla);
diff --git a/net/netlink/attr.c b/net/netlink/attr.c
index 2d106cf..c83fea7 100644
--- a/net/netlink/attr.c
+++ b/net/netlink/attr.c
@@ -233,7 +233,7 @@
*
* Returns the number of bytes copied.
*/
-int nla_memcpy(void *dest, struct nlattr *src, int count)
+int nla_memcpy(void *dest, const struct nlattr *src, int count)
{
int minlen = min_t(int, count, nla_len(src));