2017-07-15 07:17:30

by Arvind Yadav

[permalink] [raw]
Subject: [PATCH 3/5] drm: nouveau: constify pci_device_id.

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
12256 360 976 13592 3518 gpu/drm/nouveau/nouveau_drm.o

File size After adding 'const':
text data bss dec hex filename
12360 256 976 13592 3518 gpu/drm/nouveau/nouveau_drm.o

Signed-off-by: Arvind Yadav <[email protected]>
---
drivers/gpu/drm/nouveau/nouveau_drm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 15a13d0..07a1efb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -1019,7 +1019,7 @@ driver_stub = {
.patchlevel = DRIVER_PATCHLEVEL,
};

-static struct pci_device_id
+static const struct pci_device_id
nouveau_drm_pci_table[] = {
{
PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
--
2.7.4