Re: [PATCH] Avoid overflows in kernel/time.c (version 4)

> diff --git a/kernel/Makefile b/kernel/Makefile
> index dfa9695..749825a 100644
> --- a/kernel/Makefile
> +++ b/kernel/Makefile
> @@ -80,3 +80,11 @@ quiet_cmd_ikconfiggz = IKCFG   $@
>  targets += config_data.h
>  $(obj)/config_data.h: $(obj)/config_data.gz FORCE
>  	$(call if_changed,ikconfiggz)
> +
> +$(obj)/time.o: $(obj)/timeconst.h
> +
> +quiet_cmd_timeconst  = TIMEC   $@
> +      cmd_timeconst  = $(PERL) $< $(CONFIG_HZ) > $@
> +targets += timeconst.h
> +$(obj)/timeconst.h: $(src)/timeconst.pl $(wildcard include/config/hz.h) FORCE
> +	$(call if_changed,timeconst)

The prerequisite $(wildcard include/config/hz.h) is not needed.
You will run the perl script if:
- timeconst.h is missing
- if commandline changes (new CONFIG_HZ value)

Otherwise it looks OK to me.

	Sam
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Follow-Ups:
- [PATCH] Avoid overflows in kernel/time.c (version 5)
  - From: "H. Peter Anvin" <[email protected]>

References:
- [PATCH] Avoid overflows in kernel/time.c (version 4)
  - From: "H. Peter Anvin" <[email protected]>

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