On 8/3/23 5:51 PM, thinker.li@xxxxxxxxx wrote:
From: Kui-Feng Lee <thinker.li@xxxxxxxxx>
Fix inconsistent return types in two implementations of bpf_xdp_copy_buf().
There are two implementations: one is an empty implementation whose return
type does not match the actual implementation.
Suggested-by: Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>
Signed-off-by: Kui-Feng Lee <thinker.li@xxxxxxxxx>
Looks like a fix tag is not needed as the old code won't cause
compilation warnings or runtime errors despite the signature mismatch.
Acked-by: Yonghong Song <yonghong.song@xxxxxxxxx>
---
include/linux/filter.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/include/linux/filter.h b/include/linux/filter.h
index 2d6fe30bad5f..761af6b3cf2b 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -1572,10 +1572,9 @@ static inline void *bpf_xdp_pointer(struct xdp_buff *xdp, u32 offset, u32 len)
return NULL;
}
-static inline void *bpf_xdp_copy_buf(struct xdp_buff *xdp, unsigned long off, void *buf,
- unsigned long len, bool flush)
+static inline void bpf_xdp_copy_buf(struct xdp_buff *xdp, unsigned long off, void *buf,
+ unsigned long len, bool flush)
{
- return NULL;
}
#endif /* CONFIG_NET */
