[PATCH] genirq: Increase the number of interrupters

[George Cherian]

Currently the maximum number of interrupters is capped at 8260 (64 +
8196) in most of the architectures were CONFIG_SPARSE_IRQ is selected.
This upper limit is not sufficient for couple of existing SoC's from
Marvell.
For eg: Octeon TX2 series of processors support a maximum of 32K
interrupters.

Bump up the upper limit from 8196 to 65536.

Signed-off-by: George Cherian <george.cherian@xxxxxxxxxxx>
---
 kernel/irq/internals.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index f09c60393e559..9bb42757d4afc 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -12,7 +12,7 @@
 #include <linux/sched/clock.h>
 
 #ifdef CONFIG_SPARSE_IRQ
-# define IRQ_BITMAP_BITS	(NR_IRQS + 8196)
+# define IRQ_BITMAP_BITS	(NR_IRQS + 65536)
 #else
 # define IRQ_BITMAP_BITS	NR_IRQS
 #endif
-- 
2.25.1