[Devel] [PATCH hci-8.1] ms/selftests/xsk: properly handle batch ending in the middle of a packet

[no-reply at sashiko.virtuozzo.com]

> From: Larysa Zaremba <larysa.zaremba at intel.com>
> 
> Referenced commit reduced the scope of the variable pkt, so now it has to
> be reinitialized via pkt_stream_get_next_rx_pkt(), which also increments
> some counters. When the packet is interrupted by the batch ending, pkt
> stream therefore proceeds to the next packet, while xsk ring still contains
> the previous one, this results in a pkt_nb mismatch.
> 
> Decrement the affected counters when packet is interrupted.
> 
> Fixes: 8913e653e9b8 ("selftests/xsk: Iterate over all the sockets in the receive pkts function")
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov at intel.com>
> Signed-off-by: Larysa Zaremba <larysa.zaremba at intel.com>
> Link: https://lore.kernel.org/r/20260203155103.2305816-2-larysa.zaremba@intel.com
> Signed-off-by: Alexei Starovoitov <ast at kernel.org>
> (cherry picked from commit 42e41b2a0afa04ca49ee2725aadf90ccb058ed28)
> 
> Rebase note: applied to xskxceiver.c, which mainline split into
> prog_tests/test_xsk.c in commit 3ab77f35a75e ("selftests/bpf:
> test_xsk: Split xskxceiver"), missing here. The code is the same.
> 
> https://virtuozzo.atlassian.net/browse/VSTOR-153754
> Feature: fix selftests
> 
> Signed-off-by: Eva Kurchatova <eva.kurchatova at virtuozzo.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.vzint.dev/#/patchset/20261106145505.132348-1-eva.kurchatova@virtuozzo.com?part=1