linux-kernel - Re: [PATCH net-next v2 4/4] selftests: drv-net: Test that NAPI ID is non-zero

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Message-ID: <b1fa9607-f9bd-4feb-a22f-55453a9403e9@redhat.com>
Date: Thu, 17 Apr 2025 09:26:22 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: Joe Damato <jdamato@...tly.com>, netdev@...r.kernel.org
Cc: kuba@...nel.org, Andrew Lunn <andrew+netdev@...n.ch>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Shuah Khan <shuah@...nel.org>, Alexei Starovoitov <ast@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>,
 Jesper Dangaard Brouer <hawk@...nel.org>,
 John Fastabend <john.fastabend@...il.com>,
 open list <linux-kernel@...r.kernel.org>,
 "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>,
 "open list:XDP (eXpress Data Path):Keyword:(?:b|_)xdp(?:b|_)"
 <bpf@...r.kernel.org>
Subject: Re: [PATCH net-next v2 4/4] selftests: drv-net: Test that NAPI ID is
 non-zero

On 4/17/25 3:32 AM, Joe Damato wrote:
> diff --git a/tools/testing/selftests/drivers/net/napi_id.py b/tools/testing/selftests/drivers/net/napi_id.py
> new file mode 100755
> index 000000000000..aee6f90be49b
> --- /dev/null
> +++ b/tools/testing/selftests/drivers/net/napi_id.py
> @@ -0,0 +1,24 @@
> +#!/usr/bin/env python3
> +# SPDX-License-Identifier: GPL-2.0
> +
> +from lib.py import ksft_run, ksft_exit
> +from lib.py import ksft_eq, NetDrvEpEnv
> +from lib.py import bkg, cmd, rand_port, NetNSEnter
> +
> +def test_napi_id(cfg) -> None:
> +    port = rand_port()
> +    listen_cmd = f'{cfg.test_dir / "napi_id_helper"} {cfg.addr_v['4']} {port}'

Not really a full review, but this is apparently causing self-tests
failures:

# selftests: drivers/net: napi_id.py
#   File
"/home/virtme/testing-17/tools/testing/selftests/drivers/net/./napi_id.py",
line 10
#     listen_cmd = f'{cfg.test_dir / "napi_id_helper"} {cfg.addr_v['4']}
{port}'
#                                                                   ^
# SyntaxError: f-string: unmatched '['
not ok 1 selftests: drivers/net: napi_id.py # exit=1

the second "'" char is closing the python format string, truncating the
cfg.addr_v['4'] expression.

Please run the self test locally before the next submission, thanks!

/P