MIPS: idle: Remove leftover __pastwait symbol and its references

The __pastwait symbol was only used by the address_is_in_r4k_wait_irqoff
function but this is no longer used since the SMTC removal in commit
b633648c5ad3 ('MIPS: MT: Remove SMTC support'). That symbol also led to
build failures under certain random configuration due to the way the
compiler compiled the r4k_wait_irqoff function. If that function was
called multiple times, the __pastwait symbol was redefined breaking the
build like this:

CHK     include/generated/compile.h
CC      arch/mips/kernel/idle.o
{standard input}: Assembler messages:
{standard input}:527: Error: symbol `__pastwait' is already defined

Link: http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=1244879922.24479.30.camel%40falcon
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/7791/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 0 insertions, 10 deletions

diff --git a/arch/mips/include/asm/idle.h b/arch/mips/include/asm/idle.h
index d9f932de80e9..1c967abd545c 100644
--- a/arch/mips/include/asm/idle.h
+++ b/arch/mips/include/asm/idle.h
@@ -8,19 +8,12 @@ extern void (*cpu_wait)(void);
 extern void r4k_wait(void);
 extern asmlinkage void __r4k_wait(void);
 extern void r4k_wait_irqoff(void);
-extern void __pastwait(void);
 
 static inline int using_rollback_handler(void)
 {
         return cpu_wait == r4k_wait;
 }
 
-static inline int address_is_in_r4k_wait_irqoff(unsigned long addr)
-{
-        return addr >= (unsigned long)r4k_wait_irqoff &&
-               addr < (unsigned long)__pastwait;
-}
-
 extern int mips_cpuidle_wait_enter(struct cpuidle_device *dev,
                                    struct cpuidle_driver *drv, int index);
 
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index 09ce45980758..0b9082b6b683 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -68,9 +68,6 @@ void r4k_wait_irqoff(void)
                 "       wait                    \n"
                 "       .set    pop             \n");
         local_irq_enable();
-        __asm__(
-        "       .globl __pastwait       \n"
-        "__pastwait:                    \n");
 }
 
 /*