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Tue, 13 Jan 2026 23:37:35 -0800 (PST) From: Manivannan Sadhasivam X-Google-Original-From: Manivannan Sadhasivam To: Jingoo Han , Bjorn Helgaas , Shawn Lin Cc: linux-rockchip@lists.infradead.org, Niklas Cassel , linux-pci@vger.kernel.org In-Reply-To: <1766570461-138256-1-git-send-email-shawn.lin@rock-chips.com> References: <1766570461-138256-1-git-send-email-shawn.lin@rock-chips.com> Subject: Re: [PATCH] PCI: dw-rockchip: Disable BAR 0 and BAR 1 for RC mode Message-Id: <176837625328.207176.2407040245231111635.b4-ty@kernel.org> Date: Wed, 14 Jan 2026 13:07:33 +0530 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3 X-Authority-Analysis: v=2.4 cv=ebQwvrEH c=1 sm=1 tr=0 ts=696747c1 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=tlgrONNCw2HA119KiuRAjA==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=J8IMoB3hFG0qw-PMdxUA:9 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-ORIG-GUID: JeIEStFzSMnyWtzBMUrEj-TaUMVtnslU X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTE0MDA1OSBTYWx0ZWRfX7768dEBPB/hj MAouE1BvYWhN7kKlZbJehcOWx+bA6dkH+QW4EIu1FD0/r9qGrRLVLD6Prakiim/RnKak5HAaoU8 rMPY42bF+gUqKnt8mvqEQX048SkMB/DN+Qg15XBcm+52jXWWCOXrdnGagJz9Jiczj31uvZonoT/ oiqbWRGQf35EZtw0PLpkEwV4iKslB8AacH6wYTmAt5aNrt3i7FXGTPXw8LfE6eeuDYikXLxptZV z1V5FuZp8sBKtHG22jgv7oCDTTavPn7NxsNWxw5Kz3w534c9agLEKe+72FhWW3DFQl+6urDFkZS xwlbAOxzveNXVPAOyMXQxPpZkAhBTDmdS8nb5Q7DPEzRTs8AJTBe3wiT8uQzJjdVj3tU4hG9V6Q s27C0gPHblrBH8dXEgdEmvyNehiZ0KGUOfShp3c98Mc+S6PIj8nmruUYZ4u1Lz5b83XMj/p9k7i ozaODN4cuoTdlCp8giQ== X-Proofpoint-GUID: JeIEStFzSMnyWtzBMUrEj-TaUMVtnslU 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=2026-01-14_02,2026-01-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 impostorscore=0 clxscore=1015 lowpriorityscore=0 suspectscore=0 phishscore=0 spamscore=0 malwarescore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601140059 On Wed, 24 Dec 2025 18:01:01 +0800, Shawn Lin wrote: > To slitence the useless bar allocation error log of RC when > scanning bus, as RC doesn't need BARs at all. > > pci 0000:00:00.0: [1d87:3588] type 01 class 0x060400 PCIe Root Port > pci 0000:00:00.0: BAR 0 [mem 0x00000000-0x3fffffff] > pci 0000:00:00.0: BAR 1 [mem 0x00000000-0x3fffffff] > pci 0000:00:00.0: ROM [mem 0x00000000-0x0000ffff pref] > ... > pci 0000:00:00.0: BAR 0 [mem 0x900000000-0x93fffffff]: assigned > pci 0000:00:00.0: BAR 1 [mem size 0x40000000]: can't assign; no space > pci 0000:00:00.0: BAR 1 [mem size 0x40000000]: failed to assign > pci 0000:00:00.0: ROM [mem 0xf0200000-0xf020ffff pref]: assigned > pci 0000:00:00.0: BAR 0 [mem 0x900000000-0x93fffffff]: releasing > pci 0000:00:00.0: ROM [mem 0xf0200000-0xf020ffff pref]: releasing > pci 0000:00:00.0: BAR 0 [mem 0x900000000-0x93fffffff]: assigned > pci 0000:00:00.0: BAR 1 [mem size 0x40000000]: can't assign; no space > pci 0000:00:00.0: BAR 1 [mem size 0x40000000]: failed to assign > > [...] Applied, thanks! [1/1] PCI: dw-rockchip: Disable BAR 0 and BAR 1 for RC mode commit: b5d712e5b87fc56ff838684afb1bae359eb8069f Best regards, -- Manivannan Sadhasivam