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FAILED: patch "[PATCH] ARCv2: intc: Use kflag if STATUS32.IE must be reset" failed to apply to 4.4-stable tree

PATCH [email protected] 1 participant 1 message Oct 20, 2016

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The patch below does not apply to the 4.4-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

Quoted 1 line

From bc0c7ece6191d89f435e4e4016f74167430c6c21 Mon Sep 17 00:00:00 2001

From: Yuriy Kolerov <[email protected]>
Date: Mon, 12 Sep 2016 18:55:03 +0300
Subject: [PATCH] ARCv2: intc: Use kflag if STATUS32.IE must be reset

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".

arch/arc/kernel/intc-arcv2.c +1 -1
index 6c24faf48b16..62b59409a5d9 100644
@@ -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)