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Date:	Tue, 06 Oct 2015 03:55:47 +0100
From:	Ben Hutchings <>
Subject: [PATCH RT 3/4] genirq: Fix pointer cast warning for randomness on
 32-bit architectures

gcc warns about casting directly from a 32-bit pointer to u64.  In the
current rt patch series we cast to unsigned long to avoid the warning,
but this fix hasn't been backported to all versions.

Signed-off-by: Ben Hutchings <>
Cc: <> # 3.2 3.4
 kernel/irq/manage.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index e4549b2..964cf41 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -897,7 +897,8 @@ static int irq_thread(void *data)
 			add_interrupt_randomness(action->irq, 0,
-						 desc->random_ip ^ (u64) action);
+						 desc->random_ip ^
+						 (unsigned long) action);

Ben Hutchings
All the simple programs have been written, and all the good names taken.
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