diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-20 07:50:05 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 18:52:29 +0400 |
| commit | 08678b0841267c1d00d771fe01548d86043d065e (patch) | |
| tree | 7debb21f9e9a768ced43077f7376797a0c46f8c0 /drivers/pcmcia | |
| parent | bfea1238beac9d306eeac081c67de5ca6aec4c7a (diff) | |
| download | linux-08678b0841267c1d00d771fe01548d86043d065e.tar.xz | |
generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[]
add CONFIG_HAVE_SPARSE_IRQ to for use condensed array.
Get rid of irq_desc[] array assumptions.
Preallocate 32 irq_desc, and irq_desc() will try to get more.
( No change in functionality is expected anywhere, except the odd build
failure where we missed a code site or where a crossing commit itroduces
new irq_desc[] usage. )
v2: according to Eric, change get_irq_desc() to irq_desc()
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/hd64465_ss.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/pcmcia/hd64465_ss.c b/drivers/pcmcia/hd64465_ss.c index 117dc12ab438..9ef69cdb3183 100644 --- a/drivers/pcmcia/hd64465_ss.c +++ b/drivers/pcmcia/hd64465_ss.c @@ -233,15 +233,18 @@ static struct hw_interrupt_type hd64465_ss_irq_type = { */ static void hs_map_irq(hs_socket_t *sp, unsigned int irq) { + struct irq_desc *desc; + DPRINTK("hs_map_irq(sock=%d irq=%d)\n", sp->number, irq); if (irq >= HS_NUM_MAPPED_IRQS) return; + desc = irq_to_desc(irq); hs_mapped_irq[irq].sock = sp; /* insert ourselves as the irq controller */ - hs_mapped_irq[irq].old_handler = irq_desc[irq].chip; - irq_desc[irq].chip = &hd64465_ss_irq_type; + hs_mapped_irq[irq].old_handler = desc->chip; + desc->chip = &hd64465_ss_irq_type; } @@ -250,13 +253,16 @@ static void hs_map_irq(hs_socket_t *sp, unsigned int irq) */ static void hs_unmap_irq(hs_socket_t *sp, unsigned int irq) { + struct irq_desc *desc; + DPRINTK("hs_unmap_irq(sock=%d irq=%d)\n", sp->number, irq); if (irq >= HS_NUM_MAPPED_IRQS) return; + desc = irq_to_desc(irq); /* restore the original irq controller */ - irq_desc[irq].chip = hs_mapped_irq[irq].old_handler; + desc->chip = hs_mapped_irq[irq].old_handler; } /*============================================================*/ |