* [PATCH] auxdisplay: ht16k33: Make ht16k33_fb_fix and ht16k33_fb_var constant
@ 2019-08-19 7:51 Nishka Dasgupta
2019-08-19 16:48 ` Miguel Ojeda
2019-08-20 6:28 ` Robin van der Gracht
0 siblings, 2 replies; 3+ messages in thread
From: Nishka Dasgupta @ 2019-08-19 7:51 UTC (permalink / raw)
To: robin, miguel.ojeda.sandonis, linux-kernel; +Cc: Nishka Dasgupta
The static structures ht16k33_fb_fix and ht16k33_fb_var, of types
fb_fix_screeninfo and fb_var_screeninfo respectively, are not used
except to be copied into other variables. Hence make both of them
constant to prevent unintended modification.
Issue found with
Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.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 9c0bb771751d..a2fcde582e2a 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -74,7 +74,7 @@ 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,
@@ -85,7 +85,7 @@ 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,
--
2.19.1
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] auxdisplay: ht16k33: Make ht16k33_fb_fix and ht16k33_fb_var constant
2019-08-19 7:51 [PATCH] auxdisplay: ht16k33: Make ht16k33_fb_fix and ht16k33_fb_var constant Nishka Dasgupta
@ 2019-08-19 16:48 ` Miguel Ojeda
2019-08-20 6:28 ` Robin van der Gracht
1 sibling, 0 replies; 3+ messages in thread
From: Miguel Ojeda @ 2019-08-19 16:48 UTC (permalink / raw)
To: Nishka Dasgupta; +Cc: Robin van der Gracht, linux-kernel
On Mon, Aug 19, 2019 at 9:51 AM Nishka Dasgupta
<nishkadg.linux@gmail.com> wrote:
>
> The static structures ht16k33_fb_fix and ht16k33_fb_var, of types
> fb_fix_screeninfo and fb_var_screeninfo respectively, are not used
> except to be copied into other variables. Hence make both of them
> constant to prevent unintended modification.
> Issue found with
> Coccinelle.
Thanks Nishka, picking it up.
Cheers,
Miguel
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] auxdisplay: ht16k33: Make ht16k33_fb_fix and ht16k33_fb_var constant
2019-08-19 7:51 [PATCH] auxdisplay: ht16k33: Make ht16k33_fb_fix and ht16k33_fb_var constant Nishka Dasgupta
2019-08-19 16:48 ` Miguel Ojeda
@ 2019-08-20 6:28 ` Robin van der Gracht
1 sibling, 0 replies; 3+ messages in thread
From: Robin van der Gracht @ 2019-08-20 6:28 UTC (permalink / raw)
To: Nishka Dasgupta; +Cc: miguel.ojeda.sandonis, linux-kernel
On 2019-08-19 09:51, Nishka Dasgupta wrote:
> The static structures ht16k33_fb_fix and ht16k33_fb_var, of types
> fb_fix_screeninfo and fb_var_screeninfo respectively, are not used
> except to be copied into other variables. Hence make both of them
> constant to prevent unintended modification.
> Issue found with
> Coccinelle.
>
> Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.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 9c0bb771751d..a2fcde582e2a 100644
> --- a/drivers/auxdisplay/ht16k33.c
> +++ b/drivers/auxdisplay/ht16k33.c
> @@ -74,7 +74,7 @@ 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,
> @@ -85,7 +85,7 @@ 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,
ACK
Robin
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2019-08-20 6:36 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2019-08-19 7:51 [PATCH] auxdisplay: ht16k33: Make ht16k33_fb_fix and ht16k33_fb_var constant Nishka Dasgupta
2019-08-19 16:48 ` Miguel Ojeda
2019-08-20 6:28 ` Robin van der Gracht
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