# Re: \[PATCH 09/13\] timer: Remove users of expire and data arguments to DEFINE\_TIMER

- From: Guenter Roeck \<linux@roeck-us.net\>
- Date: 2017-10-05 00:12:30 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2017/10/5101500
- Thread: https://ratatoskr.run/linux-watchdog/2017/10/5101478/t.md

```text
On 10/04/2017 04:27 PM, Kees Cook wrote:
> The expire and data arguments of DEFINE_TIMER are only used in two places
> and are ignored by the code (malta-display.c only uses mod_timer(),
> never add_timer(), so the preset expires value is ignored). Set both
> sets of arguments to zero.
>
> Cc: Ralf Baechle <redacted>
> Cc: Wim Van Sebroeck <redacted>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: Geert Uytterhoeven <geert@linux-m68k.org>
> Cc: <redacted>
> Cc: <redacted>
> Signed-off-by: Kees Cook <redacted>

For watchdog:

Acked-by: Guenter Roeck <linux@roeck-us.net>

> ---
>   arch/mips/mti-malta/malta-display.c | 6 +++---
>   drivers/watchdog/alim7101_wdt.c     | 4 ++--
>   2 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/arch/mips/mti-malta/malta-display.c b/arch/mips/mti-malta/malta-display.c
> index d4f807191ecd..ac813158b9b8 100644
> --- a/arch/mips/mti-malta/malta-display.c
> +++ b/arch/mips/mti-malta/malta-display.c
> @@ -36,10 +36,10 @@ void mips_display_message(const char *str)
>   	}
>   }
>   
> -static void scroll_display_message(unsigned long data);
> -static DEFINE_TIMER(mips_scroll_timer, scroll_display_message, HZ, 0);
> +static void scroll_display_message(unsigned long unused);
> +static DEFINE_TIMER(mips_scroll_timer, scroll_display_message, 0, 0);
>   
> -static void scroll_display_message(unsigned long data)
> +static void scroll_display_message(unsigned long unused)
>   {
>   	mips_display_message(&display_string[display_count++]);
>   	if (display_count == max_display_count)
> diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
> index 665e0e7dfe1e..3c1f6ac68ea9 100644
> --- a/drivers/watchdog/alim7101_wdt.c
> +++ b/drivers/watchdog/alim7101_wdt.c
> @@ -71,7 +71,7 @@ MODULE_PARM_DESC(use_gpio,
>   		"Use the gpio watchdog (required by old cobalt boards).");
>   
>   static void wdt_timer_ping(unsigned long);
> -static DEFINE_TIMER(timer, wdt_timer_ping, 0, 1);
> +static DEFINE_TIMER(timer, wdt_timer_ping, 0, 0);
>   static unsigned long next_heartbeat;
>   static unsigned long wdt_is_open;
>   static char wdt_expect_close;
> @@ -87,7 +87,7 @@ MODULE_PARM_DESC(nowayout,
>    *	Whack the dog
>    */
>   
> -static void wdt_timer_ping(unsigned long data)
> +static void wdt_timer_ping(unsigned long unused)
>   {
>   	/* If we got a heartbeat pulse within the WDT_US_INTERVAL
>   	 * we agree to ping the WDT
>
```