* [PATCH] drm/radeon: Constify struct pci_device_id
@ 2024-11-15 17:26 Christophe JAILLET
2024-11-18 11:24 ` Christian König
0 siblings, 1 reply; 3+ messages in thread
From: Christophe JAILLET @ 2024-11-15 17:26 UTC (permalink / raw)
To: linux, broonie, lee, Alex Deucher, Christian König,
Xinhui Pan, David Airlie, Simona Vetter
Cc: linux-kernel, kernel-janitors, Christophe JAILLET, amd-gfx, dri-devel
'struct pci_device_id' is not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
11984 28672 44 40700 9efc drivers/gpu/drm/radeon/radeon_drv.o
After:
=====
text data bss dec hex filename
40000 664 44 40708 9f04 drivers/gpu/drm/radeon/radeon_drv.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
Compile tested-only.
---
drivers/gpu/drm/radeon/radeon_drv.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 23d6d1a2586d..5e958cc223f4 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -248,10 +248,9 @@ int radeon_cik_support = 1;
MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)");
module_param_named(cik_support, radeon_cik_support, int, 0444);
-static struct pci_device_id pciidlist[] = {
+static const struct pci_device_id pciidlist[] = {
radeon_PCI_IDS
};
-
MODULE_DEVICE_TABLE(pci, pciidlist);
static const struct drm_driver kms_driver;
--
2.47.0
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] drm/radeon: Constify struct pci_device_id
2024-11-15 17:26 [PATCH] drm/radeon: Constify struct pci_device_id Christophe JAILLET
@ 2024-11-18 11:24 ` Christian König
2024-11-18 15:26 ` Alex Deucher
0 siblings, 1 reply; 3+ messages in thread
From: Christian König @ 2024-11-18 11:24 UTC (permalink / raw)
To: Christophe JAILLET, linux, broonie, lee, Alex Deucher,
Xinhui Pan, David Airlie, Simona Vetter
Cc: linux-kernel, kernel-janitors, amd-gfx, dri-devel
Am 15.11.24 um 18:26 schrieb Christophe JAILLET:
> 'struct pci_device_id' is not modified in this driver.
>
> Constifying this structure moves some data to a read-only section, so
> increase overall security.
>
> On a x86_64, with allmodconfig:
> Before:
> ======
> text data bss dec hex filename
> 11984 28672 44 40700 9efc drivers/gpu/drm/radeon/radeon_drv.o
>
> After:
> =====
> text data bss dec hex filename
> 40000 664 44 40708 9f04 drivers/gpu/drm/radeon/radeon_drv.o
Mhm that's a bit more than "some data" :)
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Christian König <christian.koenig@amd.com>
> ---
> Compile tested-only.
> ---
> drivers/gpu/drm/radeon/radeon_drv.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index 23d6d1a2586d..5e958cc223f4 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -248,10 +248,9 @@ int radeon_cik_support = 1;
> MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)");
> module_param_named(cik_support, radeon_cik_support, int, 0444);
>
> -static struct pci_device_id pciidlist[] = {
> +static const struct pci_device_id pciidlist[] = {
> radeon_PCI_IDS
> };
> -
> MODULE_DEVICE_TABLE(pci, pciidlist);
>
> static const struct drm_driver kms_driver;
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] drm/radeon: Constify struct pci_device_id
2024-11-18 11:24 ` Christian König
@ 2024-11-18 15:26 ` Alex Deucher
0 siblings, 0 replies; 3+ messages in thread
From: Alex Deucher @ 2024-11-18 15:26 UTC (permalink / raw)
To: Christian König
Cc: Christophe JAILLET, linux, broonie, lee, Alex Deucher,
Xinhui Pan, David Airlie, Simona Vetter, linux-kernel,
kernel-janitors, amd-gfx, dri-devel
Applied. Thanks!
Alex
On Mon, Nov 18, 2024 at 6:25 AM Christian König
<christian.koenig@amd.com> wrote:
>
> Am 15.11.24 um 18:26 schrieb Christophe JAILLET:
> > 'struct pci_device_id' is not modified in this driver.
> >
> > Constifying this structure moves some data to a read-only section, so
> > increase overall security.
> >
> > On a x86_64, with allmodconfig:
> > Before:
> > ======
> > text data bss dec hex filename
> > 11984 28672 44 40700 9efc drivers/gpu/drm/radeon/radeon_drv.o
> >
> > After:
> > =====
> > text data bss dec hex filename
> > 40000 664 44 40708 9f04 drivers/gpu/drm/radeon/radeon_drv.o
>
> Mhm that's a bit more than "some data" :)
>
> > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
>
> Acked-by: Christian König <christian.koenig@amd.com>
>
> > ---
> > Compile tested-only.
> > ---
> > drivers/gpu/drm/radeon/radeon_drv.c | 3 +--
> > 1 file changed, 1 insertion(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> > index 23d6d1a2586d..5e958cc223f4 100644
> > --- a/drivers/gpu/drm/radeon/radeon_drv.c
> > +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> > @@ -248,10 +248,9 @@ int radeon_cik_support = 1;
> > MODULE_PARM_DESC(cik_support, "CIK support (1 = enabled (default), 0 = disabled)");
> > module_param_named(cik_support, radeon_cik_support, int, 0444);
> >
> > -static struct pci_device_id pciidlist[] = {
> > +static const struct pci_device_id pciidlist[] = {
> > radeon_PCI_IDS
> > };
> > -
> > MODULE_DEVICE_TABLE(pci, pciidlist);
> >
> > static const struct drm_driver kms_driver;
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-11-18 15:26 UTC | newest]
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2024-11-15 17:26 [PATCH] drm/radeon: Constify struct pci_device_id Christophe JAILLET
2024-11-18 11:24 ` Christian König
2024-11-18 15:26 ` Alex Deucher
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