linux-kernel - [Cbe-oss-dev] [PATCH] Cell OProfile: Incorrect local array size in activate spu profiling function

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Date:	Fri, 24 Oct 2008 11:47:29 -0700
From:	Carl Love <cel@...ibm.com>
To:	oprofile-list@...ts.sourceforge.net, linuxppc-dev@...abs.org,
	cel@...ux.vnet.ibm.com, cbe-oss-dev@...abs.org,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [Cbe-oss-dev] [PATCH] Cell OProfile: Incorrect local array size in
	activate spu profiling function


The size of the pm_signal_local array should be equal to the
number of SPUs being configured in the call.  Currently, the
array is of size 4 (NR_PHYS_CTRS) but being indexed by a for 
loop from 0 to 7 (NUM_SPUS_PER_NODE).  

Signed-off-by: Carl Love <carll@...ibm.com>


Index: Cell_kernel_10_24_2008/arch/powerpc/oprofile/op_model_cell.c
===================================================================
--- Cell_kernel_10_24_2008.orig/arch/powerpc/oprofile/op_model_cell.c
+++ Cell_kernel_10_24_2008/arch/powerpc/oprofile/op_model_cell.c
@@ -830,7 +830,7 @@ static int calculate_lfsr(int n)
 static int pm_rtas_activate_spu_profiling(u32 node)
 {
 	int ret, i;
-	struct pm_signal pm_signal_local[NR_PHYS_CTRS];
+	struct pm_signal pm_signal_local[NUM_SPUS_PER_NODE];
 
 	/*
 	 * Set up the rtas call to configure the debug bus to


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