Save r3 in regs->orig_r3 in system_call_exception() Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu> --- v5: Removed the assembly one on SCV type system call --- arch/powerpc/kernel/entry_64.S | 2 -- arch/powerpc/kernel/interrupt.c | 2 ++ 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 33ddfeef4fe9..a91c2def165d 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -108,7 +108,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM) li r11,\trapnr std r11,_TRAP(r1) std r12,_CCR(r1) - std r3,ORIG_GPR3(r1) addi r10,r1,STACK_FRAME_OVERHEAD ld r11,exception_marker@toc(r2) std r11,-16(r10) /* "regshere" marker */ @@ -278,7 +277,6 @@ END_BTB_FLUSH_SECTION std r10,_LINK(r1) std r11,_TRAP(r1) std r12,_CCR(r1) - std r3,ORIG_GPR3(r1) addi r10,r1,STACK_FRAME_OVERHEAD ld r11,exception_marker@toc(r2) std r11,-16(r10) /* "regshere" marker */ diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c index 46fd195ca659..1a2dec49f811 100644 --- a/arch/powerpc/kernel/interrupt.c +++ b/arch/powerpc/kernel/interrupt.c @@ -29,6 +29,8 @@ notrace long system_call_exception(long r3, long r4, long r5, { syscall_fn f; + regs->orig_gpr3 = r3; + if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG)) BUG_ON(irq_soft_mask_return() != IRQS_ALL_DISABLED); -- 2.25.0