Commit 198a6d5a authored Jan 10, 2008 by Russell King Committed by Russell King Jan 10, 2008

[ARM] pxa: silence warnings from cpu_is_xxx() macros



If only a single CPU type is selected, __cpu_is_xxx() doesn't
use its argument.  This causes the compiler to issue a warning
about an unused variable in the parent function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent fd0b45df

include/asm-arm/arch-pxa/hardware.h

+8 −16

Original line number	Diff line number	Diff line
		@@ -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()); \
		})

		/*

include/asm-arm/system.h

+13 −0

Original line number	Diff line number	Diff line
		@@ -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;