x86: add set/clear_cpu_cap operations

The patch to suppress bitops-related warnings added a pile of ugly
casts.  Many of these were related to the management of x86 CPU
capabilities.  Clean these up by adding specific set/clear_cpu_cap
macros, and use them consistently.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h
index 761922972f6f..87dd900154d1 100644
--- a/include/asm-x86/cpufeature.h
+++ b/include/asm-x86/cpufeature.h
@@ -124,9 +124,12 @@
            (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) ||     \
            (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) )      \
           ? 1 :                                                         \
-         test_bit(bit, (unsigned long *)(c)->x86_capability))
+         test_bit(bit, (unsigned long *)((c)->x86_capability)))
 #define boot_cpu_has(bit)       cpu_has(&boot_cpu_data, bit)
 
+#define set_cpu_cap(c, bit)     set_bit(bit, (unsigned long *)((c)->x86_capability))
+#define clear_cpu_cap(c, bit)   clear_bit(bit, (unsigned long *)((c)->x86_capability))
+
 #define cpu_has_fpu             boot_cpu_has(X86_FEATURE_FPU)
 #define cpu_has_vme             boot_cpu_has(X86_FEATURE_VME)
 #define cpu_has_de              boot_cpu_has(X86_FEATURE_DE)