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PCI: endpoint: Make struct pci_epf_ops in pci_epf_driver const

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The pci_epf_ops struct contains a set of callbacks that are used by the
pci_epf_driver, and is never modified by the EPF core itself.

Marking the struct 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.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20230722230848.589428-1-lars@metafoo.de
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2023-07-22 16:08:44 -07:00 committed by Krzysztof Wilczyński
parent b85ea95d08
commit 8636229304
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GPG Key ID: 7C64768D3DE334E7
1 changed files with 1 additions and 1 deletions
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2
include/linux/pci-epf.h
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@ -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;