isdn: avm: c4: constify pci_device_id.
authorArvind Yadav <arvind.yadav.cs@gmail.com>
Sat, 15 Jul 2017 04:25:51 +0000 (09:55 +0530)
committerDavid S. Miller <davem@davemloft.net>
Sun, 16 Jul 2017 04:25:56 +0000 (21:25 -0700)
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
  11803     544       1   12348    303c isdn/hardware/avm/c4.o

File size After adding 'const':
   text    data     bss     dec     hex filename
  11931     416       1   12348    303c isdn/hardware/avm/c4.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/isdn/hardware/avm/c4.c

index 40c7e2c..034caba 100644 (file)
@@ -42,7 +42,7 @@ static char *revision = "$Revision: 1.1.2.2 $";
 
 static bool suppress_pollack;
 
-static struct pci_device_id c4_pci_tbl[] = {
+static const struct pci_device_id c4_pci_tbl[] = {
        { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C4, 0, 0, (unsigned long)4 },
        { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285, PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_C2, 0, 0, (unsigned long)2 },
        { }                     /* Terminating entry */