The pci_epf_ops struct contains a set of callbacks that are used by the
pci_epf_driver. The ops struct is never modified by the epf core itself.
Marking the ops pointer const allows epf drivers to declare their
pci_epf_ops struct to be const. This allows the struct to be placed in the
read-only section. Which for example brings some security benefits as the
callbacks can not be overwritten.
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
include/linux/pci-epf.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h
index 3f44b6aec477..34be3f1da46c 100644
--- a/include/linux/pci-epf.h
+++ b/include/linux/pci-epf.h
@@ -98,7 +98,7 @@ struct pci_epf_driver {
void (*remove)(struct pci_epf *epf);
struct device_driver driver;
- struct pci_epf_ops *ops;
+ const struct pci_epf_ops *ops;
struct module *owner;
struct list_head epf_group;
const struct pci_epf_device_id *id_table;
--
2.39.2
