[PATCH] pci: endpoint: make pci_epf_bus_type const

Ricardo B. Marliere
2024-02-04T20:28:30Z

Now that the driver core can properly handle constant struct bus_type,
move the pci_epf_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
---
drivers/pci/endpoint/pci-epf-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c
index 2c32de667937..bf655383e5ed 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -17,7 +17,7 @@

static DEFINE_MUTEX(pci_epf_mutex);

-static struct bus_type pci_epf_bus_type;
+static const struct bus_type pci_epf_bus_type;
static const struct device_type pci_epf_type;

/**
@@ -507,7 +507,7 @@ static void pci_epf_device_remove(struct device *dev)
epf->driver = NULL;
}

-static struct bus_type pci_epf_bus_type = {
+static const struct bus_type pci_epf_bus_type = {
.name = "pci-epf",
.match = pci_epf_device_match,
.probe = pci_epf_device_probe,

---
base-commit: 1281aa073d3701b03cc6e716dc128df5ba47509d
change-id: 20240204-bus_cleanup-pci-f70b6d5a5bcf

Best regards,
--
Ricardo B. Marliere <ricardo@marliere.net>