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Fri, 15 May 2026 14:22:22 +0000 (GMT) Received: from [192.168.178.55] (unknown [9.87.148.246]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 15 May 2026 14:22:22 +0000 (GMT) From: Gerd Bayer Subject: [PATCH 0/5] PCI: Finally make pci_root_buses private Date: Fri, 15 May 2026 16:22:02 +0200 Message-Id: <20260515-priv_root_buses-v1-0-f8e393c57390@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/x2MSQqAMAwAv1JytlArrl8REZeoudiSqAji3w0eZ 2DmAUEmFGjMA4wXCYVdIU0MTNuwr2hpVgbvfOFyV9nIdPUcwtGPp6BY9RkuvijrYQatIuNC939 su/f9ABjl6/xhAAAA X-Change-ID: 20260508-priv_root_buses-0263ef2679ad To: Richard Henderson , Matt Turner , Magnus Lindholm , Russell King , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Bjorn Helgaas , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" Cc: Yinghai Lu , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-pci@vger.kernel.org, Gerd Bayer X-Mailer: b4 0.14.3 X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-GUID: BhW0i5iCtwRYcCsYhKF1TLTEACXv-Cab X-Authority-Analysis: v=2.4 cv=RemgzVtv c=1 sm=1 tr=0 ts=6a072c24 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=bC-a23v3AAAA:8 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=3TEdfphp4t-7w4sqoLwA:9 a=QEXdDO2ut3YA:10 a=FO4_E8m0qiDe52t0p3_H:22 X-Proofpoint-ORIG-GUID: b_iyl63R7uRxWrlAjKplQflIOIoOa8Gj X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTE1MDE0MyBTYWx0ZWRfX5lRW9LSZwXbw 5DmQmgWZLmEcf0d1PjSDDl0zFQGVRV8b0nwaU92OLakcli5f8x6KAN5xqitcTW0qp6aemQsBops a/S0t9NsynbCGPow9aQ/veAC86+piUom6Okaw345o4J3QFSEm5JuxK3K2HtXcdWGXf2eMqFXHsi HTbp+tlQ8jJGYnl5mMCErBUmHRKiLKA4TrsOItR0AB7JC1nqk2m9Ap18w47o+ah2v8wWEOSlQ37 PjPwXqJrz+tcP02lT4vxAEYwcd76SDX0IuN1ldo+jamTwHSjWH4pwGRLerjAg+x3HUnNDF6bpW9 RxsS0smz5JxyvL1NGw0wrmv9cuMY/8lmQc3mJ5Y/AqVxvEWbam86Iu58739vi6qBaVZT6h+82kS +cMPP+BrBtFbxrPzq3oJ/k8RUY1d4liuOb2Vf427Xjn8WQkSZDWUVotXBEiECzFmdlbdpBGG4CL 9rlTXdY/YkTgDlm1UxA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-15_03,2026-05-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1011 suspectscore=0 adultscore=0 priorityscore=1501 bulkscore=0 phishscore=0 spamscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605150143 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260515_152302_998362_0DC4292A X-CRM114-Status: GOOD ( 12.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi all! The ominous warning about pci_root_buses in drivers/pci/probe.c caught my attention. Looking closer, I found that there are uses in four arch-specific files left before we can stop exposing that symbol outside of drivers/pci. Finish off the job that Yinghai Lu started in 2013 - see https://msgid.link/1359265003-16166-23-git-send-email-yinghai@kernel.org/ The entire series has been compile-tested only - with defconfigs on alpha, arm, powerpc, and x86. Signed-off-by: Gerd Bayer --- Gerd Bayer (5): alpha/pci: Use official API to iterate over PCI buses arm/pci: Use official API to iterate over PCI buses powerpc/pci: Use official API to iterate over PCI buses x86/pci: Use official API to iterate over PCI buses PCI: Make pci_root_buses private to PCI core arch/alpha/kernel/pci.c | 4 ++-- arch/arm/kernel/bios32.c | 4 ++-- arch/powerpc/kernel/pci-common.c | 7 ++++--- arch/powerpc/kernel/pci_64.c | 4 ++-- arch/x86/pci/i386.c | 14 ++++++++------ drivers/pci/pci.h | 3 +++ drivers/pci/probe.c | 2 -- include/linux/pci.h | 4 ---- 8 files changed, 21 insertions(+), 21 deletions(-) --- base-commit: 5d6919055dec134de3c40167a490f33c74c12581 change-id: 20260508-priv_root_buses-0263ef2679ad Best regards, -- Gerd Bayer