linux-kernel - [PATCH 2/5] kdb: kdb_current

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Message-Id: <20191109111623.2.Iadbfb484e90b557cc4b5ac9890bfca732cd99d77@changeid>
Date:   Sat,  9 Nov 2019 11:16:41 -0800
From:   Douglas Anderson <dianders@...omium.org>
To:     Paul Burton <paul.burton@...s.com>,
        Jason Wessel <jason.wessel@...driver.com>,
        Daniel Thompson <daniel.thompson@...aro.org>
Cc:     qiaochong@...ngson.cn, kgdb-bugreport@...ts.sourceforge.net,
        ralf@...ux-mips.org, Douglas Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org, Prarit Bhargava <prarit@...hat.com>
Subject: [PATCH 2/5] kdb: kdb_current_regs should be private

As of the patch ("MIPS: kdb: Remove old workaround for backtracing on
other CPUs") there is no reason for kdb_current_regs to be in the
public "kdb.h".  Let's move it next to kdb_current_task.

Signed-off-by: Douglas Anderson <dianders@...omium.org>
---

 include/linux/kdb.h            | 2 --
 kernel/debug/kdb/kdb_private.h | 1 +
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index 68bd88223417..24cd447659e0 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -183,8 +183,6 @@ int kdb_process_cpu(const struct task_struct *p)
 	return cpu;
 }
 
-/* kdb access to register set for stack dumping */
-extern struct pt_regs *kdb_current_regs;
 #ifdef CONFIG_KALLSYMS
 extern const char *kdb_walk_kallsyms(loff_t *pos);
 #else /* ! CONFIG_KALLSYMS */
diff --git a/kernel/debug/kdb/kdb_private.h b/kernel/debug/kdb/kdb_private.h
index 55d052061ef9..e829b22f3946 100644
--- a/kernel/debug/kdb/kdb_private.h
+++ b/kernel/debug/kdb/kdb_private.h
@@ -242,6 +242,7 @@ extern void debug_kusage(void);
 
 extern void kdb_set_current_task(struct task_struct *);
 extern struct task_struct *kdb_current_task;
+extern struct pt_regs *kdb_current_regs;
 
 #ifdef CONFIG_KDB_KEYBOARD
 extern void kdb_kbd_cleanup_state(void);
-- 
2.24.0.432.g9d3f5f5b63-goog