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netdevsim: fix build if SKB_EXTENSIONS=n

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__skb_ext_put() is not declared if SKB_EXTENSIONS is not enabled, which
causes a build error:

drivers/net/netdevsim/netdev.c: In function 'nsim_forward_skb':
drivers/net/netdevsim/netdev.c:114:25: error: implicit declaration of function '__skb_ext_put'; did you mean 'skb_ext_put'? [-Werror=implicit-function-declaration]
  114 |                         __skb_ext_put(psp_ext);
      |                         ^~~~~~~~~~~~~
      |                         skb_ext_put
cc1: some warnings being treated as errors

Add a stub to fix the build.

Fixes: 7d9351435e ("netdevsim: drop PSP ext ref on forward failure")
Signed-off-by: Qingfang Deng <dqfext@gmail.com>
Link: https://patch.msgid.link/20260324140857.783-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Qingfang Deng
2026-03-24 22:08:56 +08:00
committed by Jakub Kicinski
parent 976ff48c2a
commit 57a04a13aa
1 changed files with 1 additions and 0 deletions
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include/linux/skbuff.h
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@@ -5097,6 +5097,7 @@ static inline bool skb_has_extensions(struct sk_buff *skb)
return unlikely(skb->active_extensions);
}
#else
static inline void __skb_ext_put(struct skb_ext *ext) {}
static inline void skb_ext_put(struct sk_buff *skb) {}
static inline void skb_ext_reset(struct sk_buff *skb) {}
static inline void skb_ext_del(struct sk_buff *skb, int unused) {}