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authorEric Dumazet <edumazet@google.com>2022-02-21 19:21:12 -0800
committerJakub Kicinski <kuba@kernel.org>2022-02-22 19:43:04 -0800
commit763087dab97547230a6807c865a6a5ae53a59247 (patch)
tree79056c3ccdf5d390d6ef1033af001d6978f0ca13 /net/core
parent0ebea8f9b81cc02bbef2ec720a4c19e841c03217 (diff)
downloadlinux-763087dab97547230a6807c865a6a5ae53a59247.tar.bz2
net: add skb_set_end_offset() helper
We have multiple places where this helper is convenient, and plan using it in the following patch. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/skbuff.c19
1 files changed, 5 insertions, 14 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 9d0388bed0c1..27a2296241c9 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -201,7 +201,7 @@ static void __build_skb_around(struct sk_buff *skb, void *data,
skb->head = data;
skb->data = data;
skb_reset_tail_pointer(skb);
- skb->end = skb->tail + size;
+ skb_set_end_offset(skb, size);
skb->mac_header = (typeof(skb->mac_header))~0U;
skb->transport_header = (typeof(skb->transport_header))~0U;
@@ -1736,11 +1736,10 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
skb->head = data;
skb->head_frag = 0;
skb->data += off;
+
+ skb_set_end_offset(skb, size);
#ifdef NET_SKBUFF_DATA_USES_OFFSET
- skb->end = size;
off = nhead;
-#else
- skb->end = skb->head + size;
#endif
skb->tail += off;
skb_headers_offset_update(skb, nhead);
@@ -6044,11 +6043,7 @@ static int pskb_carve_inside_header(struct sk_buff *skb, const u32 off,
skb->head = data;
skb->data = data;
skb->head_frag = 0;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
- skb->end = size;
-#else
- skb->end = skb->head + size;
-#endif
+ skb_set_end_offset(skb, size);
skb_set_tail_pointer(skb, skb_headlen(skb));
skb_headers_offset_update(skb, 0);
skb->cloned = 0;
@@ -6186,11 +6181,7 @@ static int pskb_carve_inside_nonlinear(struct sk_buff *skb, const u32 off,
skb->head = data;
skb->head_frag = 0;
skb->data = data;
-#ifdef NET_SKBUFF_DATA_USES_OFFSET
- skb->end = size;
-#else
- skb->end = skb->head + size;
-#endif
+ skb_set_end_offset(skb, size);
skb_reset_tail_pointer(skb);
skb_headers_offset_update(skb, 0);
skb->cloned = 0;