[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 320fde05dc631a646d7b51dee0c8fbf2ea6d65a5..522079f8c2bacdb4d53fed411d3296dc150bd913 100644 (file)
--- 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 514d323ad5369beeba60be337126d8f854309767..4b85514792e7868917436d2f192760a2ddba1ced 100644 (file)
--- 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];