All file_operations vtables should be static const

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1871 42af7a65-404d-4744-a932-0658087f49c3

arch/arm/src/c5471/c5471_watchdog.c

@@ -102,7 +102,7 @@ static int     wdt_ioctl(struct file *filep, int cmd, uint32 arg);
 
 static boolean g_wdtopen;
 
-struct file_operations g_wdtops =
+static const struct file_operations g_wdtops =
 {
   .open  = wdt_open,
   .close = wdt_close,

arch/sim/src/up_devconsole.c

@@ -62,7 +62,7 @@ static int     devconsole_poll(FAR struct file *filep, FAR struct pollfd *fds,
  * Private Data
  ****************************************************************************/
 
-static struct file_operations devconsole_fops =
+static const struct file_operations devconsole_fops =
 {
   .read		= devconsole_read,
   .write	= devconsole_write,

drivers/bch/bchdev_driver.c

@@ -78,7 +78,7 @@ static int     bch_ioctl(FAR struct file *filp, int cmd, unsigned long arg);
  * Public Data
  ****************************************************************************/
 
-struct file_operations bch_fops =
+static const struct file_operations bch_fops =
 {
   bch_open,  /* open */
   bch_close, /* close */

drivers/can.c

@@ -81,7 +81,7 @@ static int            can_ioctl(FAR struct file *filep, int cmd, unsigned long a
  * Private Data
  ****************************************************************************/
 
-struct file_operations g_canops =
+static const struct file_operations g_canops =
 {
   can_open,  /* open */
   can_close, /* close */

drivers/dev_null.c

@@ -64,7 +64,7 @@ static int     devnull_poll(FAR struct file *filp, FAR struct pollfd *fds,
  * Private Data
  ****************************************************************************/
 
-static struct file_operations devnull_fops =
+static const struct file_operations devnull_fops =
 {
   0,             /* open */
   0,             /* close */

drivers/dev_zero.c

@@ -64,7 +64,7 @@ static int     devzero_poll(FAR struct file *filp, FAR struct pollfd *fds,
  * Private Data
  ****************************************************************************/
 
-static struct file_operations devzero_fops =
+static const struct file_operations devzero_fops =
 {
   0,             /* open */
   0,             /* close */

drivers/fifo.c

@@ -67,7 +67,7 @@
  * Private Data
  ****************************************************************************/
 
-static struct file_operations fifo_fops =
+static const struct file_operations fifo_fops =
 {
   pipecommon_open,  /* open */
   pipecommon_close, /* close */

drivers/lowconsole.c

@@ -68,7 +68,7 @@ static int     lowconsole_ioctl(struct file *filep, int cmd, unsigned long arg);
  * Private Variables
  ****************************************************************************/
 
-struct file_operations g_consoleops =
+static const struct file_operations g_consoleops =
 {
   0,                /* open */
   0,                /* close */

drivers/pipe.c

@@ -75,7 +75,7 @@ static int pipe_close(FAR struct file *filep);
  * Private Data
  ****************************************************************************/
 
-static struct file_operations pipe_fops =
+static const struct file_operations pipe_fops =
 {
   pipecommon_open,   /* open */
   pipe_close,        /* close */

drivers/serial.c

@@ -86,7 +86,7 @@ static int     uart_poll(FAR struct file *filep, FAR struct pollfd *fds, boolean
  * Private Variables
  ************************************************************************************/
 
-struct file_operations g_serialops =
+static const struct file_operations g_serialops =
 {
   uart_open,  /* open */
   uart_close, /* close */

examples/pashello/device.c

@@ -61,7 +61,7 @@ static ssize_t hello_read(struct file *, char *, size_t);
  * Private Data
  ****************************************************************************/
 
-static struct file_operations hello_fops =
+static const struct file_operations hello_fops =
 {
   0,             /* open */
   0,             /* close */