linux-kernel - [PATCH RESEND v2 1/2] genirq/msi: Export functions to support TI SCI INTA MSI module

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Message-Id: <20250902-timsi-v2-1-a5bf0f32905b@baylibre.com>
Date: Tue, 02 Sep 2025 16:43:49 +0200
From: Guillaume La Roque <glaroque@...libre.com>
To: Thomas Gleixner <tglx@...utronix.de>, vigneshr@...com, 
 Nishanth Menon <nm@...com>, Santosh Shilimkar <ssantosh@...nel.org>, 
 Tero Kristo <kristo@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 Guillaume La Roque <glaroque@...libre.com>
Subject: [PATCH RESEND v2 1/2] genirq/msi: Export functions to support TI
 SCI INTA MSI module

Export MSI domain management functions to allow the TI SCI INTA MSI
driver to be compiled as a module.

The following functions are now available for module use:

- msi_domain_insert_msi_desc()
- msi_domain_free_msi_descs_range()
- msi_setup_device_data()
- msi_create_irq_domain()
- msi_domain_alloc_irqs_all_locked()

Signed-off-by: Guillaume La Roque <glaroque@...libre.com>
---
 kernel/irq/msi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 9febe797a5f6..4af232b6796b 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -163,6 +163,7 @@ int msi_domain_insert_msi_desc(struct device *dev, unsigned int domid,
 
 	return msi_insert_desc(dev, desc, domid, init_desc->msi_index);
 }
+EXPORT_SYMBOL_GPL(msi_domain_insert_msi_desc);
 
 static bool msi_desc_match(struct msi_desc *desc, enum msi_desc_filter filter)
 {
@@ -235,6 +236,7 @@ void msi_domain_free_msi_descs_range(struct device *dev, unsigned int domid,
 
 	msi_domain_free_descs(dev, &ctrl);
 }
+EXPORT_SYMBOL_GPL(msi_domain_free_msi_descs_range);
 
 /**
  * msi_domain_add_simple_msi_descs - Allocate and initialize MSI descriptors
@@ -342,6 +344,7 @@ int msi_setup_device_data(struct device *dev)
 	devres_add(dev, md);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(msi_setup_device_data);
 
 /**
  * __msi_lock_descs - Lock the MSI descriptor storage of a device
@@ -910,6 +913,7 @@ struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode,
 {
 	return __msi_create_irq_domain(fwnode, info, 0, parent);
 }
+EXPORT_SYMBOL_GPL(msi_create_irq_domain);
 
 /**
  * msi_create_parent_irq_domain - Create an MSI-parent interrupt domain
@@ -1472,6 +1476,7 @@ int msi_domain_alloc_irqs_all_locked(struct device *dev, unsigned int domid, int
 
 	return msi_domain_alloc_locked(dev, &ctrl);
 }
+EXPORT_SYMBOL_GPL(msi_domain_alloc_irqs_all_locked);
 
 static struct msi_map __msi_domain_alloc_irq_at(struct device *dev, unsigned int domid,
 						unsigned int index,

-- 
2.34.1