diff --git a/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c b/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
index d4030d0c38e9..bcd419cfd79c 100644
--- a/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
+++ b/drivers/vfio/platform/reset/vfio_platform_amdxgbe.c
@@ -56,7 +56,7 @@ static void xmdio_write(void *ioaddr, unsigned int mmd,
 	iowrite32(value, ioaddr + ((mmd_address & 0xff) << 2));
 }
 
-int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
+static int vfio_platform_amdxgbe_reset(struct vfio_platform_device *vdev)
 {
 	struct vfio_platform_region *xgmac_regs = &vdev->regions[0];
 	struct vfio_platform_region *xpcs_regs = &vdev->regions[1];
diff --git a/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c b/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c
index e3d3d948e661..49e5df6e8f29 100644
--- a/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c
+++ b/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c
@@ -57,7 +57,7 @@ static inline void xgmac_mac_disable(void __iomem *ioaddr)
 	writel(value, ioaddr + XGMAC_CONTROL);
 }
 
-int vfio_platform_calxedaxgmac_reset(struct vfio_platform_device *vdev)
+static int vfio_platform_calxedaxgmac_reset(struct vfio_platform_device *vdev)
 {
 	struct vfio_platform_region *reg = &vdev->regions[0];
 
diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c
index 1cf2d462b53d..d78142830754 100644
--- a/drivers/vfio/platform/vfio_platform_common.c
+++ b/drivers/vfio/platform/vfio_platform_common.c
@@ -73,7 +73,7 @@ static int vfio_platform_acpi_probe(struct vfio_platform_device *vdev,
 	return WARN_ON(!vdev->acpihid) ? -EINVAL : 0;
 }
 
-int vfio_platform_acpi_call_reset(struct vfio_platform_device *vdev,
+static int vfio_platform_acpi_call_reset(struct vfio_platform_device *vdev,
 				  const char **extra_dbg)
 {
 #ifdef CONFIG_ACPI
@@ -95,7 +95,7 @@ int vfio_platform_acpi_call_reset(struct vfio_platform_device *vdev,
 #endif
 }
 
-bool vfio_platform_acpi_has_reset(struct vfio_platform_device *vdev)
+static bool vfio_platform_acpi_has_reset(struct vfio_platform_device *vdev)
 {
 #ifdef CONFIG_ACPI
 	struct device *dev = vdev->device;
@@ -637,7 +637,7 @@ static const struct vfio_device_ops vfio_platform_ops = {
 	.mmap		= vfio_platform_mmap,
 };
 
-int vfio_platform_of_probe(struct vfio_platform_device *vdev,
+static int vfio_platform_of_probe(struct vfio_platform_device *vdev,
 			   struct device *dev)
 {
 	int ret;