Re: [PATCH 1/5] drm: radeon: constify pci_device_id.

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Hi Christian,

On Saturday 15 July 2017 07:17 PM, Christian König wrote:
Am 15.07.2017 um 09:12 schrieb Arvind Yadav:
pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.

File size before:
    text       data        bss        dec        hex    filename
    6560      23212         72      29844       7494    gpu/drm/radeon/radeon_drv.o

File size After adding 'const':
    text       data        bss        dec        hex    filename
   28960        812         72      29844       7494    gpu/drm/radeon/radeon_drv.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx>

Impressive result for such a simple change.

Patch is Reviewed-by: Christian König <christian.koenig@xxxxxxx>

Are the PCI IDs already const in amdgpu or do we need a similar patch there as well? I only see patch 1 of 5 in my inbox.
I have send all gpu patch to David Airlie. Please check with him.

Christian.

---
  drivers/gpu/drm/radeon/radeon_drv.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index e25cb51..b079937 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -298,7 +298,7 @@ module_param_named(uvd, radeon_uvd, int, 0444);
  MODULE_PARM_DESC(vce, "vce enable/disable vce support (1 = enable, 0 = disable)");
  module_param_named(vce, radeon_vce, int, 0444);
  -static struct pci_device_id pciidlist[] = {
+static const struct pci_device_id pciidlist[] = {
      radeon_PCI_IDS
  };
 



Regards,
~arvind
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