linux-kernel - Re: v2.6.21-rt1

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Date:	Thu, 03 May 2007 12:35:44 -0700
From:	Tim Bird <tim.bird@...sony.com>
To:	Tim Bird <tim.bird@...sony.com>
CC:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	linux-rt-users@...r.kernel.org
Subject: Re: v2.6.21-rt1 - mips compile bugs

Ingo Molnar wrote:
> i have released the v2.6.20-rt1 kernel...

There was also a problem with the patch for arch/mips/kernel/entry.S
Some kind of cruft was in the patch.

Below is a patch which fixes both issues.  It at least allows compilation.
I haven't turned anything on, or looked at runtime yet.

Index: alp-linux/arch/mips/kernel/entry.S
===================================================================
--- alp-linux.orig/arch/mips/kernel/entry.S	2007-05-03 12:28:38.000000000 -0700
+++ alp-linux/arch/mips/kernel/entry.S	2007-05-03 12:21:47.000000000 -0700
@@ -21,8 +21,6 @@
 #endif

 #ifndef CONFIG_PREEMPT
-<<<<<<< delete 	local_irq_disable
-	raw_local_irq_disable
 #define resume_kernel	restore_all
 #else
 #define __ret_from_irq	ret_from_exception
@@ -32,7 +30,7 @@
 	.align	5
 #ifndef CONFIG_PREEMPT
 FEXPORT(ret_from_exception)
-	local_irq_disable			# preempt stop
+	raw_local_irq_disable			# preempt stop
 	b	__ret_from_irq
 #endif
 FEXPORT(ret_from_irq)
Index: alp-linux/include/asm-mips/atomic.h
===================================================================
--- alp-linux.orig/include/asm-mips/atomic.h	2007-05-03 12:28:38.000000000 -0700
+++ alp-linux/include/asm-mips/atomic.h	2007-05-03 11:56:58.000000000 -0700
@@ -566,7 +566,6 @@
 		raw_local_irq_restore(flags);
 	}
 #endif
-#endif

 	smp_mb();


=============================
Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Electronics
=============================

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