linux-kernel - [PATCH] hwmon: i5k_amb: constify pci_device

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Message-Id: <f6ecfc5c18a47e7b16d58ab55c562b0414595a8c.1500308632.git.arvind.yadav.cs@gmail.com>
Date:   Mon, 17 Jul 2017 21:55:10 +0530
From:   Arvind Yadav <arvind.yadav.cs@...il.com>
To:     jdelvare@...e.com, linux@...ck-us.net
Cc:     linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] hwmon: i5k_amb: 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
   3562	    320	      8	   3890	    f32	drivers/hwmon/i5k_amb.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   3658	    224	      8	   3890	    f32	drivers/hwmon/i5k_amb.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@...il.com>
---
 drivers/hwmon/i5k_amb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c
index a5a9f45..9397d2f 100644
--- a/drivers/hwmon/i5k_amb.c
+++ b/drivers/hwmon/i5k_amb.c
@@ -495,7 +495,7 @@ static struct {
 };

 #ifdef MODULE
-static struct pci_device_id i5k_amb_ids[] = {
+static const struct pci_device_id i5k_amb_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5000_ERR) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5400_ERR) },
 	{ 0, }
-- 
2.7.4