diff options
| author |   Tony Lindgren <tony@atomide.com> | 2020-04-21 09:36:03 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2020-04-21 09:36:03 -0700 |
| commit | 175ae3ad59ab3459652bd2ae3bbc1785aeba1bf3 (patch) | |
| tree | c7fd682de61e3c2a6cc3ba0e8881b99fafdf969c /arch/riscv/kernel/stacktrace.c | |
| parent | ARM: dts: OMAP3: disable RNG on N950/N9 (diff) | |
| parent | ARM: dts: dra7: Fix bus_dma_limit for PCIe (diff) | |
Merge branch 'fixes-v5.7' into fixes
Diffstat (limited to 'arch/riscv/kernel/stacktrace.c')
| -rw-r--r-- | arch/riscv/kernel/stacktrace.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c index 0940681d2f68..02087fe539c6 100644 --- a/arch/riscv/kernel/stacktrace.c +++ b/arch/riscv/kernel/stacktrace.c @@ -19,6 +19,8 @@ struct stackframe { unsigned long ra; }; +register unsigned long sp_in_global __asm__("sp"); + void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs, bool (*fn)(unsigned long, void *), void *arg) { @@ -29,7 +31,7 @@ void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs, sp = user_stack_pointer(regs); pc = instruction_pointer(regs); } else if (task == NULL || task == current) { - const register unsigned long current_sp __asm__ ("sp"); + const register unsigned long current_sp = sp_in_global; fp = (unsigned long)__builtin_frame_address(0); sp = current_sp; pc = (unsigned long)walk_stackframe; @@ -73,8 +75,7 @@ static void notrace walk_stackframe(struct task_struct *task, sp = user_stack_pointer(regs); pc = instruction_pointer(regs); } else if (task == NULL || task == current) { - const register unsigned long current_sp __asm__ ("sp"); - sp = current_sp; + sp = sp_in_global; pc = (unsigned long)walk_stackframe; } else { /* task blocked in __switch_to */ |