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authorSam Ravnborg <sam@ravnborg.org>2009-01-17 23:10:35 -0800
committerDavid S. Miller <davem@davemloft.net>2009-01-17 23:10:35 -0800
commitc275ce44929402664902cbb09d4f054b315623d7 (patch)
tree4016c6a4c82b55c55ab833df6f36c7635876761e
parentf3b8436ad9a8ad36b3c9fa1fe030c7f38e5d3d0b (diff)
downloadlinux-c275ce44929402664902cbb09d4f054b315623d7.tar.gz
sparc64: fix readout of cpu/fpu type
Meelis reported that on his box /proc/cpuinfo started
to reported "Unknow CPU" and the same did the boot messages.

It was a stupid bug I introduced when merging
cpu.c for 32 and 64 bit.

The code did an array reference where it had to search
for the right index.

Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--arch/sparc/kernel/cpu.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index f0b825505da5..32d32b4824f5 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -239,14 +239,26 @@ unsigned int fsr_storage;
 
 static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
 {
+	const struct manufacturer_info *manuf;
+	int i;
+
 	sparc_cpu_type = NULL;
 	sparc_fpu_type = NULL;
-	if (psr_impl < ARRAY_SIZE(manufacturer_info))
+	manuf = NULL;
+
+	for (i = 0; i < ARRAY_SIZE(manufacturer_info); i++)
+	{
+		if (psr_impl == manufacturer_info[i].psr_impl) {
+			manuf = &manufacturer_info[i];
+			break;
+		}
+	}
+	if (manuf != NULL)
 	{
 		const struct cpu_info *cpu;
 		const struct fpu_info *fpu;
 
-		cpu = &manufacturer_info[psr_impl].cpu_info[0];
+		cpu = &manuf->cpu_info[0];
 		while (cpu->psr_vers != -1)
 		{
 			if (cpu->psr_vers == psr_vers) {
@@ -256,7 +268,7 @@ static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
 			}
 			cpu++;
 		}
-		fpu =  &manufacturer_info[psr_impl].fpu_info[0];
+		fpu =  &manuf->fpu_info[0];
 		while (fpu->fp_vers != -1)
 		{
 			if (fpu->fp_vers == fpu_vers) {