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authorGuo Ren <ren_guo@c-sky.com>2018-12-09 17:31:53 +0800
committerGuo Ren <ren_guo@c-sky.com>2018-12-31 23:16:00 +0800
commit17a68777bc883c8044c8b2d40aa112ff4e8a4fb1 (patch)
treeb8379a00026d6bd33bf6046b6296ebbee66e4e55 /arch/csky/kernel/ptrace.c
parent8f4f1639a19db231e4579612dbc6d147e8d07ffd (diff)
csky: remove unused members in processor.h
Cleanup struct cpuinfo_csky and struct thread_struct, remove all esp0 related code. We could get pt_regs from sp and backtrace could use fp in switch_stack. Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Diffstat (limited to 'arch/csky/kernel/ptrace.c')
-rw-r--r--arch/csky/kernel/ptrace.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/csky/kernel/ptrace.c b/arch/csky/kernel/ptrace.c
index eb62e0764b42..57f1afe19a52 100644
--- a/arch/csky/kernel/ptrace.c
+++ b/arch/csky/kernel/ptrace.c
@@ -50,15 +50,11 @@ static void singlestep_enable(struct task_struct *tsk)
*/
void user_enable_single_step(struct task_struct *child)
{
- if (child->thread.esp0 == 0)
- return;
singlestep_enable(child);
}
void user_disable_single_step(struct task_struct *child)
{
- if (child->thread.esp0 == 0)
- return;
singlestep_disable(child);
}