From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 F3C301869; Fri, 11 Aug 2023 08:48:15 +0000 (UTC) Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35A9130C1; Fri, 11 Aug 2023 01:48:13 -0700 (PDT) Received: from pps.filterd (m0353728.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 37B8edTZ024271; Fri, 11 Aug 2023 08:47:47 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=date : from : to : cc : subject : message-id : reply-to : mime-version : content-type; s=pp1; bh=tyh5cDZWabZQwh7mE9BXjoP5MVCyfN6HDYx2RPApJoU=; b=AE6H5nbbtCjtT6P0Stv2ibvq/SSBiM2XQRogRVvjU+J6YsH/Q8+TqwDuqg2kce9iPN1X abj4Y3vzAAhY4DJ4+cRCoxJzXWhpD62GPlQQctyLM/1k9Ff/V7c1EVaSvo5B3fBPt4dH x0KzRDYhQ2YhNqAErttiIaeWtI92VlKWBkd4SFJuKm9sts3wWzx9VtSJmRuaHS+ZurpB dXHo7TUR+N3niZUXK34bDmY5XFeB8GykZgKUFuWD5VmEQZx5y73HKw41n4Y+C+cMK2Sr duNkOj9Rc+dG7g8a3iTvujnf+4SP0opPA1svGODvgiHTOvToUWfTvaEKQx6rTyi9HOV5 mw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3sdhh186nb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Aug 2023 08:47:47 +0000 Received: from m0353728.ppops.net (m0353728.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 37B8hSZ2000377; Fri, 11 Aug 2023 08:47:46 GMT Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3sdhh186mn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Aug 2023 08:47:46 +0000 Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 37B7BDmP015363; Fri, 11 Aug 2023 08:47:45 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 3sb3f3jvxm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Aug 2023 08:47:45 +0000 Received: from smtpav03.fra02v.mail.ibm.com (smtpav03.fra02v.mail.ibm.com [10.20.54.102]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 37B8lhS515205064 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 11 Aug 2023 08:47:44 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D553420043; Fri, 11 Aug 2023 08:47:43 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 94F6D20040; Fri, 11 Aug 2023 08:47:40 +0000 (GMT) Received: from linux.vnet.ibm.com (unknown [9.126.150.29]) by smtpav03.fra02v.mail.ibm.com (Postfix) with SMTP; Fri, 11 Aug 2023 08:47:40 +0000 (GMT) Date: Fri, 11 Aug 2023 14:17:39 +0530 From: Srikar Dronamraju To: Alexei Starovoitov Cc: Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , "David S. Miller" , Jakub Kicinski , Jesper Dangaard Brouer , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Sachin Sant Subject: Warning when compiling with python3.12 Message-ID: <20230811084739.GY3902@linux.vnet.ibm.com> Reply-To: Srikar Dronamraju Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: iwD2xyczQJf4rg4xj5rqU1N8irk6mZ_s X-Proofpoint-GUID: rP9qckL4ZgKbijb2-20T1zBsL0UGXTAW X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-10_20,2023-08-10_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 malwarescore=0 bulkscore=0 adultscore=0 clxscore=1011 suspectscore=0 impostorscore=0 spamscore=0 phishscore=0 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308110077 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Hi, When trying to build on v6.5-rc4 with python 3.12 aka Python 3.12.0rc1 I am hitting the below Warning messages. I didn't see something similar reported upstream, hence thought of reporting. /home/srikar/linux.git/scripts/bpf_doc.py:62: SyntaxWarning: invalid escape sequence '\w' arg_re = re.compile('((\w+ )*?(\w+|...))( (\**)(\w+))?$') /home/srikar/linux.git/scripts/bpf_doc.py:64: SyntaxWarning: invalid escape sequence '\*' proto_re = re.compile('(.+) (\**)(\w+)\(((([^,]+)(, )?){1,5})\)$') /home/srikar/linux.git/scripts/bpf_doc.py:117: SyntaxWarning: invalid escape sequence '\*' p = re.compile(' \* ?(BPF\w+)$') /home/srikar/linux.git/scripts/bpf_doc.py:121: SyntaxWarning: invalid escape sequence '\*' end_re = re.compile(' \* ?NOTES$') /home/srikar/linux.git/scripts/bpf_doc.py:136: SyntaxWarning: invalid escape sequence '\*' p = re.compile(' \* ?((.+) \**\w+\((((const )?(struct )?(\w+|\.\.\.)( \**\w+)?)(, )?){1,5}\))$') /home/srikar/linux.git/scripts/bpf_doc.py:144: SyntaxWarning: invalid escape sequence '\*' p = re.compile(' \* ?(?:\t| {5,8})Description$') /home/srikar/linux.git/scripts/bpf_doc.py:157: SyntaxWarning: invalid escape sequence '\*' p = re.compile(' \* ?(?:\t| {5,8})(?:\t| {8})(.*)') /home/srikar/linux.git/scripts/bpf_doc.py:170: SyntaxWarning: invalid escape sequence '\*' p = re.compile(' \* ?(?:\t| {5,8})Return$') /home/srikar/linux.git/scripts/bpf_doc.py:183: SyntaxWarning: invalid escape sequence '\*' p = re.compile(' \* ?(?:\t| {5,8})(?:\t| {8})(.*)') /home/srikar/linux.git/scripts/bpf_doc.py:222: SyntaxWarning: invalid escape sequence '\s' bpf_p = re.compile('\s*(BPF\w+)+') /home/srikar/linux.git/scripts/bpf_doc.py:227: SyntaxWarning: invalid escape sequence '\s' assign_p = re.compile('\s*(BPF\w+)\s*=\s*(BPF\w+)') /home/srikar/linux.git/scripts/bpf_doc.py:242: SyntaxWarning: invalid escape sequence '\w' self.enum_syscalls = re.findall('(BPF\w+)+', bpf_cmd_str) /home/srikar/linux.git/scripts/bpf_doc.py:266: SyntaxWarning: invalid escape sequence '\s' p = re.compile('\s*FN\((\w+), (\d+), ##ctx\)|\\\\') /home/srikar/linux.git/scripts/bpf_doc.py:281: SyntaxWarning: invalid escape sequence '\(' self.define_unique_helpers = re.findall('FN\(\w+, \d+, ##ctx\)', fn_defines_str) /home/srikar/linux.git/scripts/bpf_doc.py:428: SyntaxWarning: invalid escape sequence '\*' '/{}/,/\*\//:include/uapi/linux/bpf.h'.format(delimiter)] /home/srikar/linux.git/scripts/bpf_doc.py:499: SyntaxWarning: invalid escape sequence '\ ' footer = ''' /home/srikar/linux.git/scripts/bpf_doc.py:601: SyntaxWarning: invalid escape sequence '\ ' one_arg += ' {}**\ '.format(a['star'].replace('*', '\\*')) However I am not seeing this when using python 3.10 (Python 3.10.12) and python 3.11 (Python 3.11.4). Note this is just a warning and Kernel build does complete. -- Thanks and Regards Srikar Dronamraju