From: Roman Zippel <zippel@linux-m68k.org>
Date: Fri, 23 Jun 2006 09:04:59 +0000 (-0700)
Subject: [PATCH] m68k: adjust to changed HARDIRQ_MASK
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6d2f16a8917eb77a8b79849686159f3a5eae2501;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] m68k: adjust to changed HARDIRQ_MASK

Adjust entry.S to the changed HARDIRQ_MASK, add a check to prevent it from
silently breaking again.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 320fde05dc63..522079f8c2ba 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -226,7 +226,7 @@ ENTRY(nmi_handler)
 inthandler:
 	SAVE_ALL_INT
 	GET_CURRENT(%d0)
-	addqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+2)
+	addqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
 					|  put exception # in d0
 	bfextu %sp@(PT_VECTOR){#4,#10},%d0
 
@@ -245,7 +245,7 @@ inthandler:
 3:	addql	#8,%sp			|  pop parameters off stack
 
 ret_from_interrupt:
-	subqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+2)
+	subqb	#1,%curptr@(TASK_INFO+TINFO_PREEMPT+1)
 	jeq	1f
 2:
 	RESTORE_ALL
diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c
index 514d323ad536..4b85514792e7 100644
--- a/arch/m68k/kernel/ints.c
+++ b/arch/m68k/kernel/ints.c
@@ -95,6 +95,12 @@ void __init init_IRQ(void)
 {
 	int i;
 
+	/* assembly irq entry code relies on this... */
+	if (HARDIRQ_MASK != 0x00ff0000) {
+		extern void hardirq_mask_is_broken(void);
+		hardirq_mask_is_broken();
+	}
+
 	for (i = 0; i < SYS_IRQS; i++) {
 		if (mach_default_handler)
 			irq_list[i].handler = (*mach_default_handler)[i];