Re: [PATCH 3/4] sys/reboot: boolize C_A_D

From: li guang
Date: Sun Jun 02 2013 - 20:26:28 EST


å 2013-05-31äç 16:02 -0700ïAndrew Mortonåéï
> On Thu, 30 May 2013 15:58:05 +0800 liguang <lig.fnst@xxxxxxxxxxxxxx> wrote:
>
> > --- a/include/linux/reboot.h
> > +++ b/include/linux/reboot.h
> > @@ -35,7 +35,7 @@ extern void kernel_restart(char *cmd);
> > extern void kernel_halt(void);
> > extern void kernel_power_off(void);
> >
> > -extern int C_A_D; /* for sysctl */
> > +extern bool C_A_D; /* for sysctl */
> > void ctrl_alt_del(void);
>
> This means that the pointer in kernel/sysctl.c:kern_table.data now
> points at a bool but is declared to have size sizeof(int).
>
> That happens to work with current gcc verions, but there's no rule
> which states that sizeof(bool) must equal sizeof(int).
>
> And I'm not sure that changing kern_table to use sizeof(bool) is really
> worth all the bother.

OK, got it,

Thanks!

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