[RFC PATCH v1 34/41] powerpc/32: Set current->thread.regs in C interrupt entry

[Christophe Leroy]

No need to do that is assembly, do it in C.

Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
 arch/powerpc/include/asm/interrupt.h | 4 +++-
 arch/powerpc/kernel/entry_32.S       | 3 +--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/include/asm/interrupt.h 
b/arch/powerpc/include/asm/interrupt.h
index d70c761edc00..550ad1d69a7b 100644
--- a/arch/powerpc/include/asm/interrupt.h
+++ b/arch/powerpc/include/asm/interrupt.h
@@ -20,8 +20,10 @@ static inline void interrupt_enter_prepare(struct pt_regs 
*regs, struct interrup
        if (regs->msr & MSR_EE)
                trace_hardirqs_off();
 
-       if (user_mode(regs))
+       if (user_mode(regs)) {
+               current->thread.regs = regs;
                account_cpu_user_entry();
+       }
 #endif
        /*
         * Book3E reconciles irq soft mask in asm
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index fd24520b2e0c..71ef5ab84b03 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -59,8 +59,7 @@
 prepare_transfer_to_handler:
        andi.   r0,r9,MSR_PR
        addi    r12, r2, THREAD
-       beq     2f                      /* if from user, fix up THREAD.regs */
-       stw     r3,PT_REGS(r12)
+       beq     2f
 #ifdef CONFIG_PPC_BOOK3S_32
        kuep_lock r11, r12
 #endif
-- 
2.25.0