linux-kernel - [PATCH] microblaze: Begin stack dump with caller of dump

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Message-Id: <1267045239-7091-1-git-send-email-steve@digidescorp.com>
Date:	Wed, 24 Feb 2010 15:00:39 -0600
From:	"Steven J. Magnani" <steve@...idescorp.com>
To:	microblaze-uclinux@...e.uq.edu.au
Cc:	monstr@...str.eu, linux-kernel@...r.kernel.org,
	"Steven J. Magnani" <steve@...idescorp.com>
Subject: [PATCH] microblaze: Begin stack dump with caller of dump_stack()

Adjust the pointer used as the start of a stack dump so that the dump
begins with the caller of dump_stack(). This makes the dump easier to 
interpret.

Signed-off-by: Steven J. Magnani <steve@...idescorp.com>
---
diff -uprN a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
--- a/arch/microblaze/kernel/traps.c	2010-02-24 14:12:01.000000000 -0600
+++ b/arch/microblaze/kernel/traps.c	2010-02-24 14:56:21.000000000 -0600
@@ -73,8 +73,10 @@ void show_stack(struct task_struct *task
 		if (task)
 			sp = (unsigned long *) ((struct thread_info *)
 						(task->stack))->cpu_context.r1;
-		else
+		else {
 			sp = (unsigned long *)&sp;
+			sp -= 2;	/* Pick up caller of dump_stack() */
+		}
 	}
 
 	stack = sp;

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