Re: [PATCH] bluetooth: btwilink: remove unnecessary static in bt_ti_probe()

[Marcel Holtmann]

Hi Gustavo,

> Remove unnecessary static on local variable hst.
> Such variable is initialized before being used,
> on every execution path throughout the function.
> The static has no benefit and, removing it reduces
> the object file size.
> 
> This issue was detected using Coccinelle and the
> following semantic patch:
> 
> @bad exists@
> position p;
> identifier x;
> type T;
> @@
> 
> static T x@p;
> ...
> x = <+...x...+>
> 
> @@
> identifier x;
> expression e;
> type T;
> position p != bad.p;
> @@
> 
> -static
> T x@p;
> ... when != x
>     when strict
> ?x = e;
> 
> In the following log you can see the difference in the object file size.
> This log is the output of the size command, before and after the code
> change:
> 
> before:
>   text    data     bss     dec     hex filename
>   4029    2528     128    6685    1a1d drivers/bluetooth/btwilink.o
> 
> after:
>   text    data     bss     dec     hex filename
>   4007    2472      64    6543    198f drivers/bluetooth/btwilink.o
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
> ---
> drivers/bluetooth/btwilink.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel