diff options
| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2024-06-23 22:01:50 +0200 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2024-06-28 09:35:13 +0200 |
| commit | 62d73261a0cfa309fd07d0da41a74b3f47f25b6f (patch) | |
| tree | 656ff9d597e85205e65f679e698d84d6f3396350 /drivers/net/can/m_can/m_can_pci.c | |
| parent | 580d1712a4b0a1242792b1207f7c0679a2de9078 (diff) | |
can: m_can: Constify struct m_can_ops
'struct m_can_ops' is not modified in these drivers.
Constifying this structure moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig, as an example:
Before:
======
text data bss dec hex filename
4806 520 0 5326 14ce drivers/net/can/m_can/m_can_pci.o
After:
=====
text data bss dec hex filename
4862 464 0 5326 14ce drivers/net/can/m_can/m_can_pci.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/all/a17b96d1be5341c11f263e1e45c9de1cb754e416.1719172843.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/m_can/m_can_pci.c')
| -rw-r--r-- | drivers/net/can/m_can/m_can_pci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/can/m_can/m_can_pci.c b/drivers/net/can/m_can/m_can_pci.c index 45400de4163d..d72fe771dfc7 100644 --- a/drivers/net/can/m_can/m_can_pci.c +++ b/drivers/net/can/m_can/m_can_pci.c @@ -77,7 +77,7 @@ static int iomap_write_fifo(struct m_can_classdev *cdev, int offset, return 0; } -static struct m_can_ops m_can_pci_ops = { +static const struct m_can_ops m_can_pci_ops = { .read_reg = iomap_read_reg, .write_reg = iomap_write_reg, .write_fifo = iomap_write_fifo, |