diff --git a/arch/x86/ia32/ia32_binfmt.c b/arch/x86/ia32/ia32_binfmt.c
index d3c53e8b05c0ed8a1b51422948024d4849e0ea91..118b9f9ff499c251ca94bbc6e47d45233eba2c08 100644
--- a/arch/x86/ia32/ia32_binfmt.c
+++ b/arch/x86/ia32/ia32_binfmt.c
@@ -112,11 +112,8 @@ struct elf_prpsinfo
 	char	pr_psargs[ELF_PRARGSZ];	/* initial part of arg list */
 };
 
-#define __STR(x) #x
-#define STR(x) __STR(x)
-
 #define _GET_SEG(x) \
-	({ __u32 seg; asm("movl %%" STR(x) ",%0" : "=r"(seg)); seg; })
+	({ __u32 seg; asm("movl %%" __stringify(x) ",%0" : "=r"(seg)); seg; })
 
 /* Assumes current==process to be dumped */
 #define ELF_CORE_COPY_REGS(pr_reg, regs)       		\
diff --git a/include/asm-x86/hw_irq_64.h b/include/asm-x86/hw_irq_64.h
index 09dfc18a6dd05cb95e80e2459abbf967271fa736..dc0a953da6a6e6fad9a7510277144291e2d69345 100644
--- a/include/asm-x86/hw_irq_64.h
+++ b/include/asm-x86/hw_irq_64.h
@@ -148,9 +148,6 @@ extern atomic_t irq_mis_count;
 
 #define IO_APIC_IRQ(x) (((x) >= 16) || ((1<<(x)) & io_apic_irqs))
 
-#define __STR(x) #x
-#define STR(x) __STR(x)
-
 #include <asm/ptrace.h>
 
 #define IRQ_NAME2(nr) nr##_interrupt(void)
diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h
index ec4c29bcfcb00a4fe46688ec8bd284f81906ccdf..4cb23848d4605c436730c353c17c60728af8f373 100644
--- a/include/asm-x86/system_64.h
+++ b/include/asm-x86/system_64.h
@@ -7,9 +7,6 @@
 
 #ifdef __KERNEL__
 
-#define __STR(x) #x
-#define STR(x) __STR(x)
-
 #define __SAVE(reg,offset) "movq %%" #reg ",(14-" #offset ")*8(%%rsp)\n\t"
 #define __RESTORE(reg,offset) "movq (14-" #offset ")*8(%%rsp),%%" #reg "\n\t"