linux-kernel - [PATCH 06/28] video: fbdev: intelfb: constify pci_device

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Message-Id: <1500572393-18844-7-git-send-email-arvind.yadav.cs@gmail.com>
Date:   Thu, 20 Jul 2017 23:09:31 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     b.zolnierkie@...sung.com, paulus@...ba.org,
        benh@...nel.crashing.org, adaplas@...il.com, mbroemme@...mpq.org,
        FlorianSchandinat@....de
Cc:     linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 06/28] video: fbdev: intelfb: 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
  11749	    896	     24	  12669	   317d	video/fbdev/intelfb/intelfbdrv.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
  12173	    472	     24	  12669	   317d	video/fbdev/intelfb/intelfbdrv.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/video/fbdev/intelfb/intelfbdrv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/intelfb/intelfbdrv.c b/drivers/video/fbdev/intelfb/intelfbdrv.c
index 6b444400..0127e81 100644
--- a/drivers/video/fbdev/intelfb/intelfbdrv.c
+++ b/drivers/video/fbdev/intelfb/intelfbdrv.c
@@ -173,7 +173,7 @@ static int intelfb_set_fbinfo(struct intelfb_info *dinfo);
 #define INTELFB_CLASS_MASK 0
 #endif
 
-static struct pci_device_id intelfb_pci_table[] = {
+static const struct pci_device_id intelfb_pci_table[] = {
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_830M, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_830M },
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G },
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM },
-- 
2.7.4