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authorRicardo Martinez <ricardo.martinez@linux.intel.com>2022-05-06 11:12:58 -0700
committerDavid S. Miller <davem@davemloft.net>2022-05-09 10:51:58 +0100
commita4ff365346c98081311c299955d91d657123e8aa (patch)
tree5743bc5303072f646d14be7c40f67ac7fbd5deda /include/linux/skbuff.h
parent2fbdf45d7d26361a0c3ec8833fd96edf0f5812da (diff)
net: skb: introduce skb_data_area_size()
Helper to calculate the linear data space in the skb. Signed-off-by: Ricardo Martinez <ricardo.martinez@linux.intel.com> Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 5c2599e3fe7d..d58669d6cb91 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1665,6 +1665,11 @@ static inline void skb_set_end_offset(struct sk_buff *skb, unsigned int offset)
}
#endif
+static inline unsigned int skb_data_area_size(struct sk_buff *skb)
+{
+ return skb_end_pointer(skb) - skb->data;
+}
+
struct ubuf_info *msg_zerocopy_realloc(struct sock *sk, size_t size,
struct ubuf_info *uarg);