x86/oprofile/nmi_int: add Nehalem to list of ppro cores

..otherwise oprofile will fall back on that poor timer interrupt.

Also replace the unreadable chain of if-statements with a "switch()"
statement instead. It generates better code, and is a lot clearer.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 7f3329b..3f90289 100644 (file)
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -369,20 +369,34 @@ static int __init ppro_init(char **cpu_type)
 {
        __u8 cpu_model = boot_cpu_data.x86_model;
 
-       if (cpu_model == 14)
+       switch (cpu_model) {
+       case 0 ... 2:
+               *cpu_type = "i386/ppro";
+               break;
+       case 3 ... 5:
+               *cpu_type = "i386/pii";
+               break;
+       case 6 ... 8:
+               *cpu_type = "i386/piii";
+               break;
+       case 9:
+               *cpu_type = "i386/p6_mobile";
+               break;
+       case 10 ... 13:
+               *cpu_type = "i386/p6";
+               break;
+       case 14:
                *cpu_type = "i386/core";
-       else if (cpu_model == 15 || cpu_model == 23)
+               break;
+       case 15: case 23:
+               *cpu_type = "i386/core_2";
+               break;
+       case 26:
                *cpu_type = "i386/core_2";
-       else if (cpu_model > 0xd)
+               break;
+       default:
+               /* Unknown */
                return 0;
-       else if (cpu_model == 9) {
-               *cpu_type = "i386/p6_mobile";
-       } else if (cpu_model > 5) {
-               *cpu_type = "i386/piii";
-       } else if (cpu_model > 2) {
-               *cpu_type = "i386/pii";
-       } else {
-               *cpu_type = "i386/ppro";
        }
 
        model = &op_ppro_spec;