Re: [linux-next:master] [tun/tap & vhost] d00c7369ef: ltp.ioctl03.fail

On 8/17/26 03:34, kernel test robot wrote:

Hello,

kernel test robot noticed "ltp.ioctl03.fail" on:

commit: d00c7369ef24ac8e0383de0fd8ef3384de20bcfa ("tun/tap & vhost-net: stop tail-drop when IFF_BACKPRESSURE is set") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master 4477a78374a57c3809b172ad30cceabda48c47c6]
────────────────────────
      TEST SUMMARY
────────────────────────
Suite:   syscalls-03
Runtime: 3m 4s
Runs:    186

Results:
    Passed:   2174
    Failed:   1
    Broken:   0
    Skipped:  222
    Warnings: 0

 [1;31mFailures: [0m
    • ioctl03

The same harmless report as before:

ioctl03.c does not know about IFF_BACKPRESSURE which is introduced here,
consequently it fails.
See [1] where it compares TUN features with known_flags.

Thanks.

[1] Link: https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/ioctl/ioctl03.c#L82