[PATCH] auxdisplay: ht16k33: constify fb_fix_screeninfo and fb_var_screeninfo structures

[Gustavo A. R. Silva]

These structures are only used to copy into other structures,
so declare them as const.

This issue was detected using Coccinelle and the following semantic patch:

@r disable optional_qualifier@
identifier i;
position p;
@@
static struct fb_fix_screeninfo i@p = { ... };

@ok@
identifier r.i;
expression e;
position p;
@@
e = i@p

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct fb_fix_screeninfo e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct fb_fix_screeninfo i = { ... };

The semantic patch for fb_var_screeninfo is analogous.

Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
---
 drivers/auxdisplay/ht16k33.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
index fbfa5b4..a0162b5 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -82,7 +82,7 @@ struct ht16k33_priv {
        struct ht16k33_fbdev fbdev;
 };
 
-static struct fb_fix_screeninfo ht16k33_fb_fix = {
+static const struct fb_fix_screeninfo ht16k33_fb_fix = {
        .id             = DRIVER_NAME,
        .type           = FB_TYPE_PACKED_PIXELS,
        .visual         = FB_VISUAL_MONO10,
@@ -93,7 +93,7 @@ static struct fb_fix_screeninfo ht16k33_fb_fix = {
        .accel          = FB_ACCEL_NONE,
 };
 
-static struct fb_var_screeninfo ht16k33_fb_var = {
+static const struct fb_var_screeninfo ht16k33_fb_var = {
        .xres = HT16K33_MATRIX_LED_MAX_ROWS,
        .yres = HT16K33_MATRIX_LED_MAX_COLS,
        .xres_virtual = HT16K33_MATRIX_LED_MAX_ROWS,
-- 
2.5.0