linux-kernel - [RFC v1 1/8] x86/hyperv: export hv_build_pci_dev

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Message-Id: <20210709114339.3467637-2-wei.liu@kernel.org>
Date:   Fri,  9 Jul 2021 11:43:32 +0000
From:   Wei Liu <wei.liu@...nel.org>
To:     Linux on Hyper-V List <linux-hyperv@...r.kernel.org>
Cc:     virtualization@...ts.linux-foundation.org,
        Linux Kernel List <linux-kernel@...r.kernel.org>,
        Michael Kelley <mikelley@...rosoft.com>,
        Vineeth Pillai <viremana@...ux.microsoft.com>,
        Sunil Muthuswamy <sunilmut@...rosoft.com>,
        Nuno Das Neves <nunodasneves@...ux.microsoft.com>,
        kumarpraveen@...ux.microsoft.com, pasha.tatashin@...een.com,
        Wei Liu <wei.liu@...nel.org>,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Dexuan Cui <decui@...rosoft.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)),
        "H. Peter Anvin" <hpa@...or.com>
Subject: [RFC v1 1/8] x86/hyperv: export hv_build_pci_dev_id

Signed-off-by: Wei Liu <wei.liu@...nel.org>
---
 arch/x86/hyperv/irqdomain.c     | 3 ++-
 arch/x86/include/asm/mshyperv.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/hyperv/irqdomain.c b/arch/x86/hyperv/irqdomain.c
index 514fc64e23d5..5ea7a5145ea9 100644
--- a/arch/x86/hyperv/irqdomain.c
+++ b/arch/x86/hyperv/irqdomain.c
@@ -110,7 +110,7 @@ static int get_rid_cb(struct pci_dev *pdev, u16 alias, void *data)
 	return 0;
 }
 
-static union hv_device_id hv_build_pci_dev_id(struct pci_dev *dev)
+union hv_device_id hv_build_pci_dev_id(struct pci_dev *dev)
 {
 	union hv_device_id dev_id;
 	struct rid_data data = {
@@ -168,6 +168,7 @@ static union hv_device_id hv_build_pci_dev_id(struct pci_dev *dev)
 
 	return dev_id;
 }
+EXPORT_SYMBOL_GPL(hv_build_pci_dev_id);
 
 static int hv_map_msi_interrupt(struct pci_dev *dev, int cpu, int vector,
 				struct hv_interrupt_entry *entry)
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index 21edef600729..b8f6b21e1fa5 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -196,6 +196,7 @@ struct irq_domain *hv_create_pci_msi_domain(void);
 int hv_map_ioapic_interrupt(int ioapic_id, bool level, int vcpu, int vector,
 		struct hv_interrupt_entry *entry);
 int hv_unmap_ioapic_interrupt(int ioapic_id, struct hv_interrupt_entry *entry);
+union hv_device_id hv_build_pci_dev_id(struct pci_dev *dev);
 
 #else /* CONFIG_HYPERV */
 static inline void hyperv_init(void) {}
-- 
2.30.2