On 1/10/24 9:57 AM, Martin KaFai Lau wrote:
From: Martin KaFai Lau <martin.lau@xxxxxxxxxx>
The current logic is to use a default size 16 to batch the whole bucket.
If it is too small, it will retry with a larger batch size.
The current code accidentally does a state->bucket-- before retrying.
This goes back to retry with the previous bucket which has already
been done. This patch fixed it.
It is hard to create a selftest. I added a WARN_ON(state->bucket < 0),
forced a particular port to be hashed to the first bucket,
created >16 sockets, and observed the for-loop went back
to the "-1" bucket.
Cc: Aditi Ghag <aditi.ghag@xxxxxxxxxxxxx>
Fixes: c96dac8d369f ("bpf: udp: Implement batching for sockets iterator")
Signed-off-by: Martin KaFai Lau <martin.lau@xxxxxxxxxx>
Acked-by: Yonghong Song <yonghong.song@xxxxxxxxx>
