Merge tag 'kgdb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

Pull kgdb updates from Daniel Thompson:
 "Everything for kgdb this time around is either simplifications or
  clean ups.

  In particular Douglas Anderson's modifications to the backtrace
  machine in the *last* dev cycle have enabled Doug to tidy up some MIPS
  specific backtrace code and stop sharing certain data structures
  across the kernel. Note that The MIPS folks were on Cc: for the MIPS
  patch and reacted positively (but without an explicit Acked-by).

  Doug also got rid of the implicit switching between tasks and register
  sets during some but not of kdb's backtrace actions (because the
  implicit switching was either confusing for users, pointless or both).

  Finally there is a coverity fix and patch to replace open coded
  console traversal with the proper helper function"

* tag 'kgdb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
  kdb: Use for_each_console() helper
  kdb: remove redundant assignment to pointer bp
  kdb: Get rid of confusing diag msg from "rd" if current task has no regs
  kdb: Gid rid of implicit setting of the current task / regs
  kdb: kdb_current_task shouldn't be exported
  kdb: kdb_current_regs should be private
  MIPS: kdb: Remove old workaround for backtracing on other CPUs

1 files changed, 0 insertions, 5 deletions

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 83f2a437d9e2..31968cbd6464 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);
 		}