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auxdisplay: constify charlcd_ops. 

charlcd_ops are not supposed to change at runtime. All functions
working with charlcd_ops provided by <misc/charlcd.h> work with
const charlcd_ops. So mark the non-const structs as const.

File size before:
   text	   data	    bss	    dec	    hex	filename
  12750	    560	    362	  13672	   3568	drivers/auxdisplay/panel.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
  12942	    368	    362	  13672	   3568	drivers/auxdisplay/panel.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arvind Yadav 2017-07-14 22:04:49 +05:30 committed by Greg Kroah-Hartman
parent caa97be1a2
commit 7b948f1377
1 changed files with 3 additions and 3 deletions
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6
drivers/auxdisplay/panel.c
View File

@ -877,21 +877,21 @@ static void lcd_clear_fast_tilcd(struct charlcd *charlcd)
spin_unlock_irq(&pprt_lock);
}
static struct charlcd_ops charlcd_serial_ops = {
static const struct charlcd_ops charlcd_serial_ops = {
.write_cmd = lcd_write_cmd_s,
.write_data = lcd_write_data_s,
.clear_fast = lcd_clear_fast_s,
.backlight = lcd_backlight,
};
static struct charlcd_ops charlcd_parallel_ops = {
static const struct charlcd_ops charlcd_parallel_ops = {
.write_cmd = lcd_write_cmd_p8,
.write_data = lcd_write_data_p8,
.clear_fast = lcd_clear_fast_p8,
.backlight = lcd_backlight,
};
static struct charlcd_ops charlcd_tilcd_ops = {
static const struct charlcd_ops charlcd_tilcd_ops = {
.write_cmd = lcd_write_cmd_tilcd,
.write_data = lcd_write_data_tilcd,
.clear_fast = lcd_clear_fast_tilcd,