For consistancy, add in the macro the label used by exception prolog to branch to stack overflow processing.
While at it, enclose the macro in #ifdef CONFIG_VMAP_STACK on the 8xx as already done on book3s/32. Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu> --- arch/powerpc/kernel/head_32.h | 3 ++- arch/powerpc/kernel/head_8xx.S | 3 ++- arch/powerpc/kernel/head_book3s_32.S | 1 - 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index 15c6fc7cbbf5..d97ec94b34da 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -52,7 +52,7 @@ 1: #ifdef CONFIG_VMAP_STACK mtcrf 0x3f, r1 - bt 32 - THREAD_ALIGN_SHIFT, stack_overflow + bt 32 - THREAD_ALIGN_SHIFT, vmap_stack_overflow #endif .endm @@ -196,6 +196,7 @@ ret_from_except) .macro vmap_stack_overflow_exception +vmap_stack_overflow: #ifdef CONFIG_SMP mfspr r1, SPRN_SPRG_THREAD lwz r1, TASK_CPU - THREAD(r1) diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index cdbfa9d41353..b63445c55f4d 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -338,8 +338,9 @@ DARFixed:/* Return from dcbx instruction bug workaround */ /* 0x300 is DataAccess exception, needed by bad_page_fault() */ EXC_XFER_LITE(0x300, handle_page_fault) -stack_overflow: +#ifdef CONFIG_VMAP_STACK vmap_stack_overflow_exception +#endif /* On the MPC8xx, these next four traps are used for development * support of breakpoints and such. Someday I will get around to diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S index 59efbee7c080..9dc05890477d 100644 --- a/arch/powerpc/kernel/head_book3s_32.S +++ b/arch/powerpc/kernel/head_book3s_32.S @@ -729,7 +729,6 @@ fast_hash_page_return: #endif /* CONFIG_PPC_BOOK3S_604 */ #ifdef CONFIG_VMAP_STACK -stack_overflow: vmap_stack_overflow_exception #endif -- 2.25.0