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authorThomas Gleixner <[email protected]>2017-10-17 09:54:58 +0200
committerThomas Gleixner <[email protected]>2017-10-18 15:38:31 +0200
commit25e960efc63852b84d1c3739aef586285b177395 (patch)
treeae52750c606af14b54367eedccc2b68ad86d92cc
parent2b5175c4fa974b6aa05bbd2ee8d443a8036a1714 (diff)
PCI/MSI: Set MSI_FLAG_MUST_REACTIVATE in core code
If interrupt reservation mode is enabled then the PCI/MSI interrupts must be reactivated after early activation. Make sure that all callers of pci_msi_create_irq_domain() have the MSI_FLAG_MUST_REACTIVATE set when reservation mode is enabled. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Josh Poulson <[email protected]> Cc: Mihai Costache <[email protected]> Cc: Stephen Hemminger <[email protected]> Cc: Marc Zyngier <[email protected]> Cc: [email protected] Cc: Haiyang Zhang <[email protected]> Cc: Dexuan Cui <[email protected]> Cc: Simon Xiao <[email protected]> Cc: Saeed Mahameed <[email protected]> Cc: Jork Loeser <[email protected]> Cc: Bjorn Helgaas <[email protected]> Cc: [email protected] Cc: KY Srinivasan <[email protected]> Link: https://lkml.kernel.org/r/[email protected]
-rw-r--r--drivers/pci/msi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 496ed9130600..e06607167858 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -1441,6 +1441,8 @@ struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
pci_msi_domain_update_chip_ops(info);
info->flags |= MSI_FLAG_ACTIVATE_EARLY;
+ if (IS_ENABLED(CONFIG_GENERIC_IRQ_RESERVATION_MODE))
+ info->flags |= MSI_FLAG_MUST_REACTIVATE;
domain = msi_create_irq_domain(fwnode, info, parent);
if (!domain)