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-rw-r--r--arch/x86/pci/common.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 190e718694b1..cfd1a89fd04e 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -75,8 +75,8 @@ struct pci_ops pci_root_ops = {
};
/*
- * This interrupt-safe spinlock protects all accesses to PCI
- * configuration space.
+ * This interrupt-safe spinlock protects all accesses to PCI configuration
+ * space, except for the mmconfig (ECAM) based operations.
*/
DEFINE_RAW_SPINLOCK(pci_config_lock);