Re: [PATCH 9/9] timers: remove old timer initialization macros

From: Arnd Bergmann
Date: Tue May 16 2017 - 15:43:48 EST


On Tue, May 16, 2017 at 1:48 PM, Christoph Hellwig <hch@xxxxxx> wrote:
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
> include/linux/timer.h | 22 +++-------------------
> 1 file changed, 3 insertions(+), 19 deletions(-)
>
> diff --git a/include/linux/timer.h b/include/linux/timer.h
> index 87afe52c8349..9c6694d3f66a 100644
> --- a/include/linux/timer.h
> +++ b/include/linux/timer.h
> @@ -80,35 +80,19 @@ struct timer_list {
> struct timer_list _name = INIT_TIMER(_func, _expires, _flags)
>
> /*
> - * Don't use the macros below, use DECLARE_TIMER and INIT_TIMER with their
> + * Don't use the macro below, use DECLARE_TIMER and INIT_TIMER with their
> * improved callback signature above.
> */
> -#define __TIMER_INITIALIZER(_function, _expires, _data, _flags) { \
> +#define DEFINE_TIMER(_name, _function, _expires, _data) \
> + struct timer_list _name = { \
> .entry = { .next = TIMER_ENTRY_STATIC }, \
> .function = (_function), \
> .expires = (_expires), \
> .data = (_data), \
> - .flags = (_flags), \
> __TIMER_LOCKDEP_MAP_INITIALIZER( \
> __FILE__ ":" __stringify(__LINE__)) \
> }

Not sure what to do about it, but I notice that the '_expires'
argument is completely
bogus, I don't see any way it could be used in a meaningful way, and the only
user that passes anything other than zero is arch/mips/mti-malta/malta-display.c
and that seems to be unintentional.

Arnd