Re: [PATCH 5.4.y 5.10.y 1/4] skbuff: introduce skb_expand_head()

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

The upstream commit SHA1 provided is correct: f1260ff15a71b8fc122b2c9abd8a7abffb6e0168

WARNING: Author mismatch between patch and upstream commit:
Backport author: Harshvardhan Jha <harshvardhan.j.jha@oracle.com>
Commit author: Vasily Averin <vvs@virtuozzo.com>


Status in newer kernel trees:
6.12.y | Present (exact SHA1)
6.6.y | Present (exact SHA1)
6.1.y | Present (exact SHA1)
5.15.y | Present (exact SHA1)
5.10.y | Not found

Note: The patch differs from the upstream commit:
---
1:  f1260ff15a71 ! 1:  ee7ccf9396c7 skbuff: introduce skb_expand_head()
    @@ Metadata
      ## Commit message ##
         skbuff: introduce skb_expand_head()
     
    +    [ Upstream commit f1260ff15a71b8fc122b2c9abd8a7abffb6e0168 ]
    +
         Like skb_realloc_headroom(), new helper increases headroom of specified skb.
         Unlike skb_realloc_headroom(), it does not allocate a new skb if possible;
         copies skb->sk on new skb when as needed and frees original skb in case
    @@ Commit message
     
         Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
         Signed-off-by: David S. Miller <davem@davemloft.net>
    +    (cherry picked from commit f1260ff15a71b8fc122b2c9abd8a7abffb6e0168)
    +    Signed-off-by: Harshvardhan Jha <harshvardhan.j.jha@oracle.com>
     
      ## include/linux/skbuff.h ##
     @@ include/linux/skbuff.h: static inline struct sk_buff *__pskb_copy(struct sk_buff *skb, int headroom,
---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-5.10.y       |  Success    |  Success   |
| stable/linux-5.4.y        |  Success    |  Success   |