From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B1EA3B1BD; Tue, 13 Jan 2026 00:07:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768262869; cv=none; b=CU8MhCdJ9FdexaZ+Fzo4l3axmv2asB7CnD5aNWnsL7XG++3XtHNblTWtU01OojROQMQOJUht6iEApLPAjN/yyoU6FCZnh08OhATpO/QwPpS4Wr5ttwD1Cf+YP7oxCiiBoEgaoqnkKWA10QJI6OsRGdY8U+9URocVCAZncaiL2f8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768262869; c=relaxed/simple; bh=ZWljSR+mSpCIJT+Osbk6hlYEZGtK5JiLKgJeMKBM5Fg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ROffKRsGlFU6sGqQ084h4Iwn0pmRHlxg6kUH45iKFkI50/bPF3uN5u0kglQ/tHlcqQSwR0kBYWyWRiR/EMDDm2k1kGO0RbszWEY1r2zvBdNz8qNhCVErCDf0RrgBBDpAI78Xk7/Yv+cWImcqUvKzYrddupDLXUzxVInW5kso/Jc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ont3oInv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ont3oInv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7E8FFC19424; Tue, 13 Jan 2026 00:07:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768262868; bh=ZWljSR+mSpCIJT+Osbk6hlYEZGtK5JiLKgJeMKBM5Fg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ont3oInvxUCl6yolpUNTf1nThcjlTy+IO8r5wXjF1lcCNAUhgedP4brrCWiVDSHdy PDW0ksCeq4OjAw9V2zeXSKh6+wKdMV2v9pgTUglT0hH86xM5F25/tC4LGlfe6NkTuz G6poSVD0X6Cg6FteVO5MqmZbPrK/hT7oirZxM9Ll7RVXdS6rdIAMpXFvBrjrf9ht/F JdlAIek+4AvxTE/uLBf+JhE+qydO40g2+wxtH3tH3GUzYJ6k/PaZYBsa6AX+EedWJn qjZ7rGqcqP2zyunUY+2DLtPi/M+lnwrkmAaIt9Xp5KpRMk0ytF2/e7JSesEd8otQL9 8hKfoentvnHiw== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, shuah@kernel.org, linux-kselftest@vger.kernel.org, sdf@fomichev.me, willemb@google.com, petrm@nvidia.com, Jakub Kicinski Subject: [PATCH net-next v3 2/6] selftests: net: py: teach cmd() how to print itself Date: Mon, 12 Jan 2026 16:07:36 -0800 Message-ID: <20260113000740.255360-3-kuba@kernel.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260113000740.255360-1-kuba@kernel.org> References: <20260113000740.255360-1-kuba@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Teach cmd() how to print itself, to make debug prints easier. Example output (leading # due to ksft_pr()): # CMD: /root/ksft-net-drv/drivers/net/gro # EXIT: 1 # STDOUT: ipv6 with ext header does coalesce: # STDERR: Expected {200 }, Total 1 packets # Received {100 [!=200]100 [!=0]}, Total 2 packets. Reviewed-by: Petr Machata Signed-off-by: Jakub Kicinski --- tools/testing/selftests/net/lib/py/utils.py | 23 +++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py index 824f039d384c..37243103aee3 100644 --- a/tools/testing/selftests/net/lib/py/utils.py +++ b/tools/testing/selftests/net/lib/py/utils.py @@ -41,7 +41,9 @@ import time self.ret = None self.ksft_term_fd = None + self.host = host self.comm = comm + if host: self.proc = host.cmd(comm) else: @@ -99,6 +101,27 @@ import time raise CmdExitFailure("Command failed: %s\nSTDOUT: %s\nSTDERR: %s" % (self.proc.args, stdout, stderr), self) + def __repr__(self): + def str_fmt(name, s): + name += ': ' + return (name + s.strip().replace('\n', '\n' + ' ' * len(name))) + + ret = "CMD" + if self.host: + ret += "[remote]" + if self.ret is None: + ret += f" (unterminated): {self.comm}\n" + elif self.ret == 0: + ret += f" (success): {self.comm}\n" + else: + ret += f": {self.comm}\n" + ret += f" EXIT: {self.ret}\n" + if self.stdout: + ret += str_fmt(" STDOUT", self.stdout) + "\n" + if self.stderr: + ret += str_fmt(" STDERR", self.stderr) + "\n" + return ret.strip() + class bkg(cmd): """ -- 2.52.0