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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-11df7576932sm79909900c88.4.2025.12.09.23.38.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Dec 2025 23:38:14 -0800 (PST) From: Yingying Tang To: apw@canonical.com, joe@perches.com, dwaipayanray1@gmail.com, lukas.bulwahn@gmail.com, dmitry.baryshkov@oss.qualcomm.com, linux-kernel@vger.kernel.org, tingweiz@qti.qualcomm.com, yijiyang@qti.qualcomm.com, yintang@qti.qualcomm.com Cc: Yingying Tang Subject: [PATCH] checkpatch: skip vendor-prefix check for pciNNNN DT compatibles Date: Wed, 10 Dec 2025 15:38:12 +0800 Message-Id: <20251210073812.1380803-1-yingying.tang@oss.qualcomm.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: MCfMuoYVOSFYpjBfNdcuN2I6YZ3Aalpw X-Proofpoint-ORIG-GUID: MCfMuoYVOSFYpjBfNdcuN2I6YZ3Aalpw X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjEwMDA2NSBTYWx0ZWRfX2HrYHZWt0x+m sKnzZqS/7oC2X6lCJcZqXHCo++XOWQwYfAOsFZ5YII2/YcryjvQEfBGwCgj12VekpWxWXTOMZ24 iUTUHlvZXnmxzkzH2LgyKmADdIFsxs1PQFBoNIbwvV1zsWdNwDUilHosw0QhCMDYAzBRUHNZSSb /jUAdTxhfoua5GdsrlkW1Hep2xcVnBSRJlDsuOb1tpPe7GWI4zodXai+Xw+QPxaT/lKwzXV5QpV 8FEr+zCfm/navPVKcI+wgtBQ7wygM7+ql7aY2utTtdzYGdO1hiVQqGV2Z0xd1ZTZYPaR8ZLs7Mb p8w/CfuwLp5RkB66yke1GT4qqKG77lPsIFMXNxxyuDTpNp68wSWQsKlwPB4xOQG6Kduhnw+HR11 qs+HXP8NbEKBFMstWuMZ/DSunVM/Eg== X-Authority-Analysis: v=2.4 cv=IoYTsb/g c=1 sm=1 tr=0 ts=69392368 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=wP3pNCr1ah4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=-LQXgrJmAXQ6JlvimvQA:9 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-09_05,2025-12-09_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 priorityscore=1501 spamscore=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 phishscore=0 suspectscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2512100065 Content-Type: text/plain; charset="utf-8" Some DeviceTree compatibles legitimately use PCI Vendor/Device IDs, e.g. "pci17cb,1107" (WCN7850/ath12k). These are documented in binding YAML files and validated by dt-schema, but checkpatch currently treats the substring before the comma as a vendor prefix that must be listed in vendor-prefixes.yaml. That yields false warnings like: WARNING: DT compatible string vendor "pci17cb" appears un-documented Skip vendor-prefix documentation check when the extracted prefix matches 'pci'. Normal vendor prefixes remain checked. Signed-off-by: Yingying Tang --- scripts/checkpatch.pl | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index c0250244cf7a..b1eea8f532a0 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3751,6 +3751,10 @@ sub process { =20 next if $compat !~ /^([a-zA-Z0-9\-]+)\,/; my $vendor =3D $1; + if ($vendor =3D~ /^pci[0-9a-fA-F]{4}$/) { + # Skip vendor-prefix documentation check for pciNNNN + next; + } `grep -Eq "\\"\\^\Q$vendor\E,\\.\\*\\":" $vp_file`; if ( $? >> 8 ) { WARN("UNDOCUMENTED_DT_STRING", --=20 2.25.1