| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.8 05/57] ARCv2: intc: Use kflag if STATUS32.IE must be reset | Date | Fri, 21 Oct 2016 11:17:28 +0200 |
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4.8-stable review patch. If anyone has any objections, please let me know.
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From: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
commit bc0c7ece6191d89f435e4e4016f74167430c6c21 upstream.
In the end of "arc_init_IRQ" STATUS32.IE flag is going to be affected by "flag" instruction but "flag" never touches IE flag on ARCv2. So "kflag" instruction must be used instead of "flag".
Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/arc/kernel/intc-arcv2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arc/kernel/intc-arcv2.c +++ b/arch/arc/kernel/intc-arcv2.c @@ -74,7 +74,7 @@ void arc_init_IRQ(void) tmp = read_aux_reg(0xa); tmp |= STATUS_AD_MASK | (irq_prio << 1); tmp &= ~STATUS_IE_MASK; - asm volatile("flag %0 \n"::"r"(tmp)); + asm volatile("kflag %0 \n"::"r"(tmp)); } static void arcv2_irq_mask(struct irq_data *data)
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