[PATCH net-next 08/10] net: add skb_copy_and_crc32c_datagram_iter()

[Eric Biggers]

On Tue, May 13, 2025 at 02:41:54PM -0700, Jakub Kicinski wrote:
> On Sat, 10 May 2025 17:41:08 -0700 Eric Biggers wrote:
> > +/**
> > + *	skb_copy_and_crc32c_datagram_iter - Copy datagram to an iovec iterator
> > + *		and update a CRC32C value.
> > + *	@skb: buffer to copy
> > + *	@offset: offset in the buffer to start copying from
> > + *	@to: iovec iterator to copy to
> > + *	@len: amount of data to copy from buffer to iovec
> > + *	@crcp: pointer to CRC32C value to update
> > + */
> 
> When you repost please toss a Return: statement here.
> kernel-doc -Wall is complaining

I'll plan to fold in the following:

diff --git a/net/core/datagram.c b/net/core/datagram.c
index 3599eda959917..fa87abb666324 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -538,10 +538,12 @@ static size_t crc32c_and_copy_to_iter(const void *addr, size_t bytes,
  *	@skb: buffer to copy
  *	@offset: offset in the buffer to start copying from
  *	@to: iovec iterator to copy to
  *	@len: amount of data to copy from buffer to iovec
  *	@crcp: pointer to CRC32C value to update
+ *
+ *	Return: 0 on success, -EFAULT if there was a fault during copy.
  */
 int skb_copy_and_crc32c_datagram_iter(const struct sk_buff *skb, int offset,
 				      struct iov_iter *to, int len, u32 *crcp)
 {
 	return __skb_datagram_iter(skb, offset, to, len, true,