[PATCH] mark struct file_operations const 5

Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 15 insertions, 15 deletions

diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 44a22701da9..b08055abe83 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -4430,53 +4430,53 @@ static int proc_BSSList_open( struct inode *inode, struct file *file );
 static int proc_config_open( struct inode *inode, struct file *file );
 static int proc_wepkey_open( struct inode *inode, struct file *file );
 
-static struct file_operations proc_statsdelta_ops = {
+static const struct file_operations proc_statsdelta_ops = {
 	.read		= proc_read,
 	.open		= proc_statsdelta_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_stats_ops = {
+static const struct file_operations proc_stats_ops = {
 	.read		= proc_read,
 	.open		= proc_stats_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_status_ops = {
+static const struct file_operations proc_status_ops = {
 	.read		= proc_read,
 	.open		= proc_status_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_SSID_ops = {
+static const struct file_operations proc_SSID_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_SSID_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_BSSList_ops = {
+static const struct file_operations proc_BSSList_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_BSSList_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_APList_ops = {
+static const struct file_operations proc_APList_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_APList_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_config_ops = {
+static const struct file_operations proc_config_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_config_open,
 	.release	= proc_close
 };
 
-static struct file_operations proc_wepkey_ops = {
+static const struct file_operations proc_wepkey_ops = {
 	.read		= proc_read,
 	.write		= proc_write,
 	.open		= proc_wepkey_open,
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
index b9df06a06ea..35dbe455451 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
@@ -355,37 +355,37 @@ out_up:
 #undef fappend
 
 
-static struct file_operations devinfo_fops = {
+static const struct file_operations devinfo_fops = {
 	.read = devinfo_read_file,
 	.write = write_file_dummy,
 	.open = open_file_generic,
 };
 
-static struct file_operations spromdump_fops = {
+static const struct file_operations spromdump_fops = {
 	.read = spromdump_read_file,
 	.write = write_file_dummy,
 	.open = open_file_generic,
 };
 
-static struct file_operations drvinfo_fops = {
+static const struct file_operations drvinfo_fops = {
 	.read = drvinfo_read_file,
 	.write = write_file_dummy,
 	.open = open_file_generic,
 };
 
-static struct file_operations tsf_fops = {
+static const struct file_operations tsf_fops = {
 	.read = tsf_read_file,
 	.write = tsf_write_file,
 	.open = open_file_generic,
 };
 
-static struct file_operations txstat_fops = {
+static const struct file_operations txstat_fops = {
 	.read = txstat_read_file,
 	.write = write_file_dummy,
 	.open = open_file_generic,
 };
 
-static struct file_operations restart_fops = {
+static const struct file_operations restart_fops = {
 	.write = restart_write_file,
 	.open = open_file_generic,
 };
diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index ce3a8bac66f..f5ce1c6063d 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -1160,7 +1160,7 @@ static int strip_seq_open(struct inode *inode, struct file *file)
 	return seq_open(file, &strip_seq_ops);
 }
 
-static struct file_operations strip_seq_fops = {
+static const struct file_operations strip_seq_fops = {
 	.owner	 = THIS_MODULE,
 	.open    = strip_seq_open,
 	.read    = seq_read,