RE: [PATCH 1/2] event/sw: fix missing flow ID init in selftest

["Morten Brørup" <mb@smartsharesystems.com>]

> From: Olivier Matz [mailto:olivier.matz@6wind.com]
> Sent: Friday, 14 October 2022 22.37
> 
> The issue is seen by unit tests:
> 
> > root@dpdk-VF-dut247:~/dpdk# MALLOC_PERTURB_=204 \
> >   DPDK_TEST=eventdev_selftest_sw \
> >   /root/dpdk/x86_64-native-linuxapp-gcc/app/test/dpdk-test -c 0xff
> > (...)
> > *** Running XStats ID Reset test...
> > 12: 1761: qid_0_port_2_pinned_flows value , expected 1 got 7
> > 1778: qid_0_port_2_pinned_flows value incorrect, expected 1 got 7
> > ERROR - XStats ID Reset test FAILED.
> > SW Eventdev Selftest Failed.
> > Test Failed
> 
> The flow id is not set in the event, which results in an undefined
> flow, whose value depends on what was previously in stack. Having
> different flows for the packets makes the test to fail, since only one
> flow is expected.
> 
> This only happens in -O3, where the same stack area is shared by the
> event object and the address of the mbuf allocated in rte_gen_arp().
> 
> Fix this by properly initializing the flow id.
> 
> Bugzilla ID: 1101
> Fixes: e21df4b062b5 ("test/eventdev: add SW xstats tests")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
> ---

Series-Acked-by: Morten Brørup <mb@smartsharesystems.com>