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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2008-01-13 10:03:10 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-01-13 10:03:10 -0800
commit1a1b285c24e1468afe82b09330dde5192a6e0013 (patch)
tree94406d24339b3791b7b5481ee969f0300e3c48cf /include
parentd72ec9e20e4de995aa957f171cf84b136689e4c0 (diff)
parent90e6b048365950416419c031f2f2d9a8afb5b70c (diff)
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] vfp: fix fuitod/fsitod instructions [ARM] pxa: silence warnings from cpu_is_xxx() macros
Diffstat (limited to 'include')
-rw-r--r--include/asm-arm/arch-pxa/hardware.h24
-rw-r--r--include/asm-arm/system.h13
2 files changed, 21 insertions, 16 deletions
diff --git a/include/asm-arm/arch-pxa/hardware.h b/include/asm-arm/arch-pxa/hardware.h
index ab2d963e742..e25558faa5a 100644
--- a/include/asm-arm/arch-pxa/hardware.h
+++ b/include/asm-arm/arch-pxa/hardware.h
@@ -121,38 +121,32 @@
#define cpu_is_pxa21x() \
({ \
- unsigned int id = read_cpuid(CPUID_ID); \
- __cpu_is_pxa21x(id); \
+ __cpu_is_pxa21x(read_cpuid_id()); \
})
#define cpu_is_pxa25x() \
({ \
- unsigned int id = read_cpuid(CPUID_ID); \
- __cpu_is_pxa25x(id); \
+ __cpu_is_pxa25x(read_cpuid_id()); \
})
#define cpu_is_pxa27x() \
({ \
- unsigned int id = read_cpuid(CPUID_ID); \
- __cpu_is_pxa27x(id); \
+ __cpu_is_pxa27x(read_cpuid_id()); \
})
#define cpu_is_pxa300() \
({ \
- unsigned int id = read_cpuid(CPUID_ID); \
- __cpu_is_pxa300(id); \
+ __cpu_is_pxa300(read_cpuid_id()); \
})
#define cpu_is_pxa310() \
({ \
- unsigned int id = read_cpuid(CPUID_ID); \
- __cpu_is_pxa310(id); \
+ __cpu_is_pxa310(read_cpuid_id()); \
})
#define cpu_is_pxa320() \
({ \
- unsigned int id = read_cpuid(CPUID_ID); \
- __cpu_is_pxa320(id); \
+ __cpu_is_pxa320(read_cpuid_id()); \
})
/*
@@ -174,14 +168,12 @@
#define cpu_is_pxa2xx() \
({ \
- unsigned int id = read_cpuid(CPUID_ID); \
- __cpu_is_pxa2xx(id); \
+ __cpu_is_pxa2xx(read_cpuid_id()); \
})
#define cpu_is_pxa3xx() \
({ \
- unsigned int id = read_cpuid(CPUID_ID); \
- __cpu_is_pxa3xx(id); \
+ __cpu_is_pxa3xx(read_cpuid_id()); \
})
/*
diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index 94ea8c6dc1a..28425c473e7 100644
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -75,8 +75,21 @@
#ifndef __ASSEMBLY__
#include <linux/linkage.h>
+#include <linux/stringify.h>
#include <linux/irqflags.h>
+/*
+ * The CPU ID never changes at run time, so we might as well tell the
+ * compiler that it's constant. Use this function to read the CPU ID
+ * rather than directly reading processor_id or read_cpuid() directly.
+ */
+static inline unsigned int read_cpuid_id(void) __attribute_const__;
+
+static inline unsigned int read_cpuid_id(void)
+{
+ return read_cpuid(CPUID_ID);
+}
+
#define __exception __attribute__((section(".exception.text")))
struct thread_info;