[PATCH][2.4.22-pre3] i386 cpufeature.h cleanup + comment

Mikael Pettersson (mikpe@csd.uu.se)
Mon, 7 Jul 2003 00:47:13 +0200 (MEST)


The 2.4.22-pre3 changelog includes:
>Alan Cox <alan@lxorguk.ukuu.org.uk>:
...
> o add the extra cpu bit test flags

This added a second cpu_has() macro to cpufeature.h, which
the patch below cleans up.

Note that FEATURE_EST currently mustn't be used: it resides
in the fifth word ([4]) but only four words are allocated
(NCAPINTS). If you bump NCAPINTS, you must also adjust the
hard-coded struct offsets in arch/i386/kernel/head.S or
Very Bad Things happen.

/Mikael

--- linux-2.4.22-pre3/include/asm-i386/cpufeature.h.~1~ 2003-07-06 18:37:46.000000000 +0200
+++ linux-2.4.22-pre3/include/asm-i386/cpufeature.h 2003-07-06 19:21:50.000000000 +0200
@@ -67,9 +67,6 @@
/* Intel defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
#define X86_FEATURE_EST (4*32+ 7) /* Enhanced SpeedStep */

-#define cpu_has(c, bit) test_bit(bit, (c)->x86_capability)
-
-
#define cpu_has(c, bit) test_bit(bit, (c)->x86_capability)
#define boot_cpu_has(bit) test_bit(bit, boot_cpu_data.x86_capability)

-
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