From: Douglas Anderson <dianders@chromium.org>
Date: Sat, 9 Nov 2019 19:16:40 +0000 (-0800)
Subject: MIPS: kdb: Remove old workaround for backtracing on other CPUs
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b356e89b89cc950dc142e906c1ad5c2d4eb1fa13;p=linux.git

MIPS: kdb: Remove old workaround for backtracing on other CPUs

As of commit 2277b492582d ("kdb: Fix stack crawling on 'running' CPUs
that aren't the master") we no longer need any special case for doing
stack dumps on CPUs that are not the kdb master.  Let's remove.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20191109111623.1.I30a0cac4d9880040c8d41495bd9a567fe3e24989@changeid
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
---

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 83f2a437d9e24..31968cbd6464f 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -210,11 +210,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
 			regs.regs[29] = task->thread.reg29;
 			regs.regs[31] = 0;
 			regs.cp0_epc = task->thread.reg31;
-#ifdef CONFIG_KGDB_KDB
-		} else if (atomic_read(&kgdb_active) != -1 &&
-			   kdb_current_regs) {
-			memcpy(&regs, kdb_current_regs, sizeof(regs));
-#endif /* CONFIG_KGDB_KDB */
 		} else {
 			prepare_frametrace(&regs);
 		}