Hello,

kernel test robot noticed "hwsim.sae_proto_hostapd_status_127.fail" on:

commit: 77669c151f1de6de2eaa28d7efdf387d39208309 ("wifi: nl80211: emit CMD_START_AP on multicast group when an AP is started")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

[test failed on linux-next/master 4aa1da8d99724f6c0b762b58a71cee7c5e2e109b]

in testcase: hwsim
version: hwsim-x86_64-717e5d7-1_20230407
with following parameters:

	test: group-21



compiler: gcc-11
test machine: 64 threads 2 sockets Intel(R) Xeon(R) Gold 6346 CPU @ 3.10GHz (Ice Lake) with 256G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)




If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Link: https://lore.kernel.org/oe-lkp/202304231327.59eee85d-oliver.sang@intel.com



2023-04-20 10:00:18 ./run-tests.py sae_proto_hostapd_status_127
DEV: wlan0: 02:00:00:00:00:00
DEV: wlan1: 02:00:00:00:01:00
DEV: wlan2: 02:00:00:00:02:00
APDEV: wlan3
APDEV: wlan4
START sae_proto_hostapd_status_127 1/1
Test: SAE protocol testing with hostapd (status code 127)
Starting AP wlan3
unpack requires a buffer of 2 bytes
Traceback (most recent call last):
  File "/lkp/benchmarks/hwsim/tests/hwsim/./run-tests.py", line 531, in main
    t(dev, apdev)
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_sae.py", line 1248, in test_sae_proto_hostapd_status_127
    check_commit_status(hapd, 127, 1)
  File "/lkp/benchmarks/hwsim/tests/hwsim/test_sae.py", line 1235, in check_commit_status
    status, = struct.unpack('<H', binascii.unhexlify(body[8:12]))
struct.error: unpack requires a buffer of 2 bytes
FAIL sae_proto_hostapd_status_127 1.398976 2023-04-20 10:00:21.261190
passed 0 test case(s)
skipped 0 test case(s)
failed tests: sae_proto_hostapd_status_127



To reproduce:

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        sudo bin/lkp install job.yaml           # job file is attached in this email
        bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
        sudo bin/lkp run generated-yaml-file

        # if come across any failure that blocks the test,
        # please remove ~/.lkp and /lkp dir to run from a clean state.



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https://github.com/intel/lkp-tests