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-rw-r--r--include/linux/atalk.h18
-rw-r--r--include/linux/bpf-cgroup.h2
-rw-r--r--include/linux/igmp.h2
-rw-r--r--include/linux/skbuff.h68
4 files changed, 77 insertions, 13 deletions
diff --git a/include/linux/atalk.h b/include/linux/atalk.h
index 5a90f28d5ff2..d5cfc0b15b76 100644
--- a/include/linux/atalk.h
+++ b/include/linux/atalk.h
@@ -161,16 +161,26 @@ extern int sysctl_aarp_resolve_time;
extern int atalk_register_sysctl(void);
extern void atalk_unregister_sysctl(void);
#else
-#define atalk_register_sysctl() do { } while(0)
-#define atalk_unregister_sysctl() do { } while(0)
+static inline int atalk_register_sysctl(void)
+{
+ return 0;
+}
+static inline void atalk_unregister_sysctl(void)
+{
+}
#endif
#ifdef CONFIG_PROC_FS
extern int atalk_proc_init(void);
extern void atalk_proc_exit(void);
#else
-#define atalk_proc_init() ({ 0; })
-#define atalk_proc_exit() do { } while(0)
+static inline int atalk_proc_init(void)
+{
+ return 0;
+}
+static inline void atalk_proc_exit(void)
+{
+}
#endif /* CONFIG_PROC_FS */
#endif /* __LINUX_ATALK_H__ */
diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h
index 695b2a880d9a..a4c644c1c091 100644
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@ -292,7 +292,7 @@ static inline int bpf_cgroup_storage_assign(struct bpf_prog *prog,
static inline void bpf_cgroup_storage_release(struct bpf_prog *prog,
struct bpf_map *map) {}
static inline struct bpf_cgroup_storage *bpf_cgroup_storage_alloc(
- struct bpf_prog *prog, enum bpf_cgroup_storage_type stype) { return 0; }
+ struct bpf_prog *prog, enum bpf_cgroup_storage_type stype) { return NULL; }
static inline void bpf_cgroup_storage_free(
struct bpf_cgroup_storage *storage) {}
static inline int bpf_percpu_cgroup_storage_copy(struct bpf_map *map, void *key,
diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index cc85f4524dbf..9c94b2ea789c 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -110,7 +110,7 @@ struct ip_mc_list {
static inline int ip_mc_may_pull(struct sk_buff *skb, unsigned int len)
{
if (skb_transport_offset(skb) + ip_transport_len(skb) < len)
- return -EINVAL;
+ return 0;
return pskb_may_pull(skb, len);
}
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index b48bb8b42fc8..9027a8c4219f 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -327,26 +327,49 @@ struct skb_frag_struct {
#endif
};
+/**
+ * skb_frag_size - Returns the size of a skb fragment
+ * @frag: skb fragment
+ */
static inline unsigned int skb_frag_size(const skb_frag_t *frag)
{
return frag->size;
}
+/**
+ * skb_frag_size_set - Sets the size of a skb fragment
+ * @frag: skb fragment
+ * @size: size of fragment
+ */
static inline void skb_frag_size_set(skb_frag_t *frag, unsigned int size)
{
frag->size = size;
}
+/**
+ * skb_frag_size_add - Incrementes the size of a skb fragment by %delta
+ * @frag: skb fragment
+ * @delta: value to add
+ */
static inline void skb_frag_size_add(skb_frag_t *frag, int delta)
{
frag->size += delta;
}
+/**
+ * skb_frag_size_sub - Decrements the size of a skb fragment by %delta
+ * @frag: skb fragment
+ * @delta: value to subtract
+ */
static inline void skb_frag_size_sub(skb_frag_t *frag, int delta)
{
frag->size -= delta;
}
+/**
+ * skb_frag_must_loop - Test if %p is a high memory page
+ * @p: fragment's page
+ */
static inline bool skb_frag_must_loop(struct page *p)
{
#if defined(CONFIG_HIGHMEM)
@@ -590,7 +613,7 @@ typedef unsigned int sk_buff_data_t;
typedef unsigned char *sk_buff_data_t;
#endif
-/**
+/**
* struct sk_buff - socket buffer
* @next: Next buffer in list
* @prev: Previous buffer in list
@@ -648,7 +671,7 @@ typedef unsigned char *sk_buff_data_t;
* @csum_not_inet: use CRC32c to resolve CHECKSUM_PARTIAL
* @dst_pending_confirm: need to confirm neighbour
* @decrypted: Decrypted SKB
- * @napi_id: id of the NAPI struct this skb came from
+ * @napi_id: id of the NAPI struct this skb came from
* @secmark: security marking
* @mark: Generic packet mark
* @vlan_proto: vlan encapsulation protocol
@@ -883,7 +906,10 @@ struct sk_buff {
#define SKB_ALLOC_RX 0x02
#define SKB_ALLOC_NAPI 0x04
-/* Returns true if the skb was allocated from PFMEMALLOC reserves */
+/**
+ * skb_pfmemalloc - Test if the skb was allocated from PFMEMALLOC reserves
+ * @skb: buffer
+ */
static inline bool skb_pfmemalloc(const struct sk_buff *skb)
{
return unlikely(skb->pfmemalloc);
@@ -905,7 +931,7 @@ static inline bool skb_pfmemalloc(const struct sk_buff *skb)
*/
static inline struct dst_entry *skb_dst(const struct sk_buff *skb)
{
- /* If refdst was not refcounted, check we still are in a
+ /* If refdst was not refcounted, check we still are in a
* rcu_read_lock section
*/
WARN_ON((skb->_skb_refdst & SKB_DST_NOREF) &&
@@ -952,6 +978,10 @@ static inline bool skb_dst_is_noref(const struct sk_buff *skb)
return (skb->_skb_refdst & SKB_DST_NOREF) && skb_dst(skb);
}
+/**
+ * skb_rtable - Returns the skb &rtable
+ * @skb: buffer
+ */
static inline struct rtable *skb_rtable(const struct sk_buff *skb)
{
return (struct rtable *)skb_dst(skb);
@@ -966,6 +996,10 @@ static inline bool skb_pkt_type_ok(u32 ptype)
return ptype <= PACKET_OTHERHOST;
}
+/**
+ * skb_napi_id - Returns the skb's NAPI id
+ * @skb: buffer
+ */
static inline unsigned int skb_napi_id(const struct sk_buff *skb)
{
#ifdef CONFIG_NET_RX_BUSY_POLL
@@ -975,7 +1009,12 @@ static inline unsigned int skb_napi_id(const struct sk_buff *skb)
#endif
}
-/* decrement the reference count and return true if we can free the skb */
+/**
+ * skb_unref - decrement the skb's reference count
+ * @skb: buffer
+ *
+ * Returns true if we can free the skb.
+ */
static inline bool skb_unref(struct sk_buff *skb)
{
if (unlikely(!skb))
@@ -1005,6 +1044,14 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
int node);
struct sk_buff *__build_skb(void *data, unsigned int frag_size);
struct sk_buff *build_skb(void *data, unsigned int frag_size);
+
+/**
+ * alloc_skb - allocate a network buffer
+ * @size: size to allocate
+ * @priority: allocation mask
+ *
+ * This function is a convenient wrapper around __alloc_skb().
+ */
static inline struct sk_buff *alloc_skb(unsigned int size,
gfp_t priority)
{
@@ -1047,6 +1094,13 @@ static inline bool skb_fclone_busy(const struct sock *sk,
fclones->skb2.sk == sk;
}
+/**
+ * alloc_skb_fclone - allocate a network buffer from fclone cache
+ * @size: size to allocate
+ * @priority: allocation mask
+ *
+ * This function is a convenient wrapper around __alloc_skb().
+ */
static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
gfp_t priority)
{
@@ -4232,10 +4286,10 @@ static inline bool skb_is_gso_sctp(const struct sk_buff *skb)
return skb_shinfo(skb)->gso_type & SKB_GSO_SCTP;
}
+/* Note: Should be called only if skb_is_gso(skb) is true */
static inline bool skb_is_gso_tcp(const struct sk_buff *skb)
{
- return skb_is_gso(skb) &&
- skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6);
+ return skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6);
}
static inline void skb_gso_reset(struct sk_buff *skb)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 02:24:23 +0000