Sync with latest libbpf repo

Sync with latest libbpf repo with top commit:
  0667206913b3  Use checkout action in version v3

Signed-off-by: Yonghong Song <[email protected]>

src/cc/compat/linux/virtual_bpf.h

@@ -2362,7 +2362,8 @@ union bpf_attr {
  * Pull in non-linear data in case the *skb* is non-linear and not
  * all of *len* are part of the linear section. Make *len* bytes
  * from *skb* readable and writable. If a zero value is passed for
- * *len*, then the whole length of the *skb* is pulled.
+ * *len*, then all bytes in the linear part of *skb* will be made
+ * readable and writable.
  *
  * This helper is only needed for reading and writing with direct
  * packet access.
@@ -5227,22 +5228,25 @@ union bpf_attr {
  * Return
  * Nothing. Always succeeds.
  *
- * long bpf_dynptr_read(void *dst, u32 len, struct bpf_dynptr *src, u32 offset)
+ * long bpf_dynptr_read(void *dst, u32 len, struct bpf_dynptr *src, u32 offset, u64 flags)
  * Description
  * Read *len* bytes from *src* into *dst*, starting from *offset*
  * into *src*.
+ * *flags* is currently unused.
  * Return
  * 0 on success, -E2BIG if *offset* + *len* exceeds the length
- * of *src*'s data, -EINVAL if *src* is an invalid dynptr.
+ * of *src*'s data, -EINVAL if *src* is an invalid dynptr or if
+ * *flags* is not 0.
  *
- * long bpf_dynptr_write(struct bpf_dynptr *dst, u32 offset, void *src, u32 len)
+ * long bpf_dynptr_write(struct bpf_dynptr *dst, u32 offset, void *src, u32 len, u64 flags)
  * Description
  * Write *len* bytes from *src* into *dst*, starting from *offset*
  * into *dst*.
+ * *flags* is currently unused.
  * Return
  * 0 on success, -E2BIG if *offset* + *len* exceeds the length
  * of *dst*'s data, -EINVAL if *dst* is an invalid dynptr or if *dst*
- * is a read-only dynptr.
+ * is a read-only dynptr or if *flags* is not 0.
  *
  * void *bpf_dynptr_data(struct bpf_dynptr *ptr, u32 offset, u32 len)
  * Description
@@ -6787,6 +6791,7 @@ enum bpf_core_relo_kind {
  BPF_CORE_TYPE_SIZE = 9, /* type size in bytes */
  BPF_CORE_ENUMVAL_EXISTS = 10, /* enum value existence in target kernel */
  BPF_CORE_ENUMVAL_VALUE = 11, /* enum value integer value */
+ BPF_CORE_TYPE_MATCHES = 12, /* type match in target kernel */
 };
 
 /*

src/cc/export/helpers.h

@@ -1006,9 +1006,11 @@ static void (*bpf_ringbuf_submit_dynptr)(struct bpf_dynptr *ptr, __u64 flags) =
  (void *)BPF_FUNC_ringbuf_submit_dynptr;
 static void (*bpf_ringbuf_discard_dynptr)(struct bpf_dynptr *ptr, __u64 flags) =
  (void *)BPF_FUNC_ringbuf_discard_dynptr;
-static long (*bpf_dynptr_read)(void *dst, __u32 len, struct bpf_dynptr *src, __u32 offset) =
+static long (*bpf_dynptr_read)(void *dst, __u32 len, struct bpf_dynptr *src, __u32 offset,
+ __u64 flags) =
  (void *)BPF_FUNC_dynptr_read;
-static long (*bpf_dynptr_write)(struct bpf_dynptr *dst, __u32 offset, void *src, __u32 len) =
+static long (*bpf_dynptr_write)(struct bpf_dynptr *dst, __u32 offset, void *src, __u32 len,
+ __u64 flags) =
  (void *)BPF_FUNC_dynptr_write;
 static void *(*bpf_dynptr_data)(struct bpf_dynptr *ptr, __u32 offset, __u32 len) =
  (void *)BPF_FUNC_dynptr_data;