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Wed, 22 Jul 2026 16:12:17 -0700 (PDT) Received: from ryzen.lan ([2601:644:8000:7a86::e35]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cbb9656c076sm695300a12.19.2026.07.22.16.12.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Jul 2026 16:12:16 -0700 (PDT) From: Rosen Penev To: linux-pci@vger.kernel.org Cc: Marc Zyngier , Lorenzo Pieralisi , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-kernel@vger.kernel.org (open list), llvm@lists.linux.dev (open list:CLANG/LLVM BUILD SUPPORT:Keyword:\b(?i:clang|llvm)\b) Subject: [PATCH] PCI: apple: use fwnode_irq_get() for port IRQ lookup Date: Wed, 22 Jul 2026 16:12:14 -0700 Message-ID: <20260722231214.857760-1-rosenp@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Replace irq_of_parse_and_map() with fwnode_irq_get() on the PCIe controller device's fwnode, indexed by port->idx. This is equivalent for an OF-backed fwnode but uses the generic firmware-node API. Unlike irq_of_parse_and_map(), fwnode_irq_get() returns a positive IRQ or a negative errno and never 0 (it rewrites 0 to -EINVAL). So store the result in an int and check for irq < 0, propagating the error (including -EPROBE_DEFER) instead of the previous unsigned int with an `if (!irq)` check that could never catch a negative failure. Built for arm64 (defconfig + CONFIG_PCIE_APPLE) with LLVM=1; drivers/pci/controller/pcie-apple.o compiles cleanly. Assisted-by: opencode:hy3-free Signed-off-by: Rosen Penev --- drivers/pci/controller/pcie-apple.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c index c2cffc0659f4..535acf274b78 100644 --- a/drivers/pci/controller/pcie-apple.c +++ b/drivers/pci/controller/pcie-apple.c @@ -400,14 +400,13 @@ static int apple_pcie_port_setup_irq(struct apple_pcie_port *port) { struct fwnode_handle *fwnode = &port->np->fwnode; struct apple_pcie *pcie = port->pcie; - unsigned int irq; + int irq; u32 val = 0; /* FIXME: consider moving each interrupt under each port */ - irq = irq_of_parse_and_map(to_of_node(dev_fwnode(port->pcie->dev)), - port->idx); - if (!irq) - return -ENXIO; + irq = fwnode_irq_get(dev_fwnode(pcie->dev), port->idx); + if (irq < 0) + return irq; port->domain = irq_domain_create_linear(fwnode, 32, &apple_port_irq_domain_ops, -- 2.55.0