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Date:   Mon, 18 Feb 2019 14:43:52 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Aaro Koskinen <aaro.koskinen@....fi>,
        Paul Burton <paul.burton@...s.com>, linux-mips@...r.kernel.org
Subject: [PATCH 4.4 104/143] MIPS: OCTEON: dont set octeon_dma_bar_type if PCI is disabled

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Aaro Koskinen <aaro.koskinen@....fi>

commit dcf300a69ac307053dfb35c2e33972e754a98bce upstream.

Don't set octeon_dma_bar_type if PCI is disabled. This avoids creation
of the MSI irqchip later on, and saves a bit of memory.

Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi>
Signed-off-by: Paul Burton <paul.burton@...s.com>
Fixes: a214720cbf50 ("Disable MSI also when pcie-octeon.pcie_disable on")
Cc: stable@...r.kernel.org # v3.3+
Cc: linux-mips@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/mips/pci/pci-octeon.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -571,6 +571,11 @@ static int __init octeon_pci_setup(void)
 	if (octeon_has_feature(OCTEON_FEATURE_PCIE))
 		return 0;
 
+	if (!octeon_is_pci_host()) {
+		pr_notice("Not in host mode, PCI Controller not initialized\n");
+		return 0;
+	}
+
 	/* Point pcibios_map_irq() to the PCI version of it */
 	octeon_pcibios_map_irq = octeon_pci_pcibios_map_irq;
 
@@ -582,11 +587,6 @@ static int __init octeon_pci_setup(void)
 	else
 		octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_BIG;
 
-	if (!octeon_is_pci_host()) {
-		pr_notice("Not in host mode, PCI Controller not initialized\n");
-		return 0;
-	}
-
 	/* PCI I/O and PCI MEM values */
 	set_io_port_base(OCTEON_PCI_IOSPACE_BASE);
 	ioport_resource.start = 0;


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