On Fri, Nov 15, 2024 at 10:08:55PM +0100, Christophe JAILLET wrote:
> 'struct pci_device_id' 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
> 4245 1454 4 5703 1647 drivers/ata/ata_generic.o
>
> After:
> =====
> text data bss dec hex filename
> 4725 974 4 5703 1647 drivers/ata/ata_generic.o
>
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> ---
> Compile tested-only.
> ---
> ---
> drivers/ata/ata_generic.c | 2 +-
> drivers/ata/pata_atp867x.c | 2 +-
> drivers/ata/pata_piccolo.c | 2 +-
> 3 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
> index 2f57ec00ab82..e70b6c089cf1 100644
> --- a/drivers/ata/ata_generic.c
> +++ b/drivers/ata/ata_generic.c
> @@ -209,7 +209,7 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id
> return ata_pci_bmdma_init_one(dev, ppi, &generic_sht, (void *)id, 0);
> }
>
> -static struct pci_device_id ata_generic[] = {
> +static const struct pci_device_id ata_generic[] = {
> { PCI_DEVICE(PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), },
> { PCI_DEVICE(PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), },
> { PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8673F), },
> diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c
> index aaef5924f636..308f86f9e2f0 100644
> --- a/drivers/ata/pata_atp867x.c
> +++ b/drivers/ata/pata_atp867x.c
> @@ -525,7 +525,7 @@ static int atp867x_reinit_one(struct pci_dev *pdev)
> }
> #endif
>
> -static struct pci_device_id atp867x_pci_tbl[] = {
> +static const struct pci_device_id atp867x_pci_tbl[] = {
> { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP867A), 0 },
> { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP867B), 0 },
> { },
> diff --git a/drivers/ata/pata_piccolo.c b/drivers/ata/pata_piccolo.c
> index ced906bf56be..beb53bd990be 100644
> --- a/drivers/ata/pata_piccolo.c
> +++ b/drivers/ata/pata_piccolo.c
> @@ -97,7 +97,7 @@ static int ata_tosh_init_one(struct pci_dev *dev, const struct pci_device_id *id
> return ata_pci_bmdma_init_one(dev, ppi, &tosh_sht, NULL, 0);
> }
>
> -static struct pci_device_id ata_tosh[] = {
> +static const struct pci_device_id ata_tosh[] = {
> { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), },
> { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), },
> { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_3), },
> --
> 2.47.0
>
Looks good to me:
Reviewed-by: Niklas Cassel <cassel@xxxxxxxxxx>
However, since we are in the middle of the merge window, expect to wait
until 6.13-rc1 is out until this is picked up.
Kind regards,
Niklas
