Re: [PATCH 3/4] per-platform IA64_{FIRST,LAST}_DEVICE_VECTOR definitions

Matthew Wilcox
2005-12-21T19:32:20Z

On Wed, Dec 21, 2005 at 01:18:43PM -0600, Mark Maule wrote:
> Ok. Was just following the lead of this:
>
> static struct msi_desc* msi_desc[NR_IRQS] = { [0 ... NR_IRQS-1] = NULL };
>
> So arrays are always init'd to zero?

Static variables without an initialiser go to the bss section and get
initialised to 0 by the loader. So the initialisation above is
redundant on all machines which use a bitpattern of zeros to represent
the NULL pointer. Which is all machines Linux runs on.