The patch titled Subject: MIPS: kdb: remove old workaround for backtracing on other CPUs has been added to the -mm tree. Its filename is mips-kdb-remove-old-workaround-for-backtracing-on-other-cpus.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mips-kdb-remove-old-workaround-for-backtracing-on-other-cpus.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mips-kdb-remove-old-workaround-for-backtracing-on-other-cpus.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Douglas Anderson <dianders@xxxxxxxxxxxx> Subject: MIPS: kdb: remove old workaround for backtracing on other CPUs Patch series "kdb: Don't implicitly change tasks; plus misc fixups". This patch (of 5): 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. Link: http://lkml.kernel.org/r/20191109111623.1.I30a0cac4d9880040c8d41495bd9a567fe3e24989@changeid Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx> Cc: Chong Qiao <qiaochong@xxxxxxxxxxx> Cc: Daniel Thompson <daniel.thompson@xxxxxxxxxx> Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> Cc: James Hogan <jhogan@xxxxxxxxxx> Cc: Jason Wessel <jason.wessel@xxxxxxxxxxxxx> Cc: Mike Rapoport <rppt@xxxxxxxxxxxxx> Cc: Paul Burton <paul.burton@xxxxxxxx> Cc: Philippe Mathieu-Daud <f4bug@xxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> Cc: Serge Semin <fancer.lancer@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/mips/kernel/traps.c | 5 ----- 1 file changed, 5 deletions(-) --- a/arch/mips/kernel/traps.c~mips-kdb-remove-old-workaround-for-backtracing-on-other-cpus +++ a/arch/mips/kernel/traps.c @@ -210,11 +210,6 @@ void show_stack(struct task_struct *task 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(®s, kdb_current_regs, sizeof(regs)); -#endif /* CONFIG_KGDB_KDB */ } else { prepare_frametrace(®s); } _ Patches currently in -mm which might be from dianders@xxxxxxxxxxxx are mips-kdb-remove-old-workaround-for-backtracing-on-other-cpus.patch kdb-kdb_current_regs-should-be-private.patch kdb-kdb_current_task-shouldnt-be-exported.patch kdb-gid-rid-of-implicit-setting-of-the-current-task-regs.patch kdb-get-rid-of-confusing-diag-msg-from-rd-if-current-task-has-no-regs.patch