linux-kernel - [PATCH] pci: mediatek: fix warning in msi.h

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Message-Id: <20201031140330.83768-1-linux@fw-web.de>
Date:   Sat, 31 Oct 2020 15:03:30 +0100
From:   Frank Wunderlich <linux@...web.de>
To:     linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-pci@...r.kernel.org, Ryder Lee <ryder.lee@...iatek.com>
Subject: [PATCH] pci: mediatek: fix warning in msi.h

From: Frank Wunderlich <frank-w@...lic-files.de>

5.10 shows these warnings on bootup while enabling pcie
at least on bananapi-r2:

[    6.161730] WARNING: CPU: 2 PID: 73 at include/linux/msi.h:213 pci_msi_setup_
msi_irqs.constprop.0+0x78/0x80
....
[    6.724607] WARNING: CPU: 2 PID: 73 at include/linux/msi.h:219 free_msi_irqs+

fix this by selecting PCI_MSI_ARCH_FALLBACKS for MTK PCIe driver

Fixes: 077ee78e3928 ("PCI/MSI: Make arch_.*_msi_irq[s] fallbacks selectable")
Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
 drivers/pci/controller/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig
index 64e2f5e379aa..8345de010186 100644
--- a/drivers/pci/controller/Kconfig
+++ b/drivers/pci/controller/Kconfig
@@ -238,6 +238,7 @@ config PCIE_MEDIATEK
 	depends on ARCH_MEDIATEK || COMPILE_TEST
 	depends on OF
 	depends on PCI_MSI_IRQ_DOMAIN
+	select PCI_MSI_ARCH_FALLBACKS
 	help
 	  Say Y here if you want to enable PCIe controller support on
 	  MediaTek SoCs.
-- 
2.25.1