2022-09-07 13:56:57

by Colin Ian King

Subject: [PATCH] fbdev: remove redundant initialization to variable identical

The variable identical is being initialized with a value that is never
read. The variable is being re-assigned later on. The initialization is
redundant and can be removed.

Cleans up clang scan-build warning:
drivers/video/fbdev/udlfb.c:373:6: warning: Value stored to 'identical'
during its initialization is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <[email protected]>
---
drivers/video/fbdev/udlfb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
index c863244ef12c..216d49c9d47e 100644
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c
@@ -370,7 +370,7 @@ static int dlfb_trim_hline(const u8 *bback, const u8 **bfront, int *width_bytes)
const unsigned long *back = (const unsigned long *) bback;
const unsigned long *front = (const unsigned long *) *bfront;
const int width = *width_bytes / sizeof(unsigned long);
- int identical = width;
+ int identical;
int start = width;
int end = width;

--
2.37.1

2022-09-25 11:22:56

by Helge Deller

Subject: Re: [PATCH] fbdev: remove redundant initialization to variable identical

On 9/7/22 15:50, Colin Ian King wrote:
> The variable identical is being initialized with a value that is never
> read. The variable is being re-assigned later on. The initialization is
> redundant and can be removed.
>
> Cleans up clang scan-build warning:
> drivers/video/fbdev/udlfb.c:373:6: warning: Value stored to 'identical'
> during its initialization is never read [deadcode.DeadStores]
>
> Signed-off-by: Colin Ian King <[email protected]>

applied.

Thanks!
Helge

> ---
> drivers/video/fbdev/udlfb.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
> index c863244ef12c..216d49c9d47e 100644
> --- a/drivers/video/fbdev/udlfb.c
> +++ b/drivers/video/fbdev/udlfb.c
> @@ -370,7 +370,7 @@ static int dlfb_trim_hline(const u8 *bback, const u8 **bfront, int *width_bytes)
> const unsigned long *back = (const unsigned long *) bback;
> const unsigned long *front = (const unsigned long *) *bfront;
> const int width = *width_bytes / sizeof(unsigned long);
> - int identical = width;
> + int identical;
> int start = width;
> int end = width;
>