---

yaml
---
r: 43119
b: refs/heads/master
c: a1a70c2
h: refs/heads/master
i:
  43117: fe8a707
  43115: cf66416
  43111: a4e36f8
  43103: 127339b
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 73ad8355d7db6a3cdcf313d4a4586a8f81b19c2f
+refs/heads/master: a1a70c25bed75ed36ed48bbe18b9029428d2452d

trunk/Documentation/stable_api_nonsense.txt

@@ -62,9 +62,6 @@ consider the following facts about the Linux kernel:
       - different structures can contain different fields
       - Some functions may not be implemented at all, (i.e. some locks
 	compile away to nothing for non-SMP builds.)
-      - Parameter passing of variables from function to function can be
-	done in different ways (the CONFIG_REGPARM option controls
-	this.)
       - Memory within the kernel can be aligned in different ways,
 	depending on the build options.
   - Linux runs on a wide range of different processor architectures.

trunk/arch/i386/Kconfig

@@ -721,20 +721,6 @@ config BOOT_IOREMAP
 	depends on (((X86_SUMMIT || X86_GENERICARCH) && NUMA) || (X86 && EFI))
 	default y
 
-config REGPARM
-	bool "Use register arguments"
-	default y
-	help
-	Compile the kernel with -mregparm=3. This instructs gcc to use
-	a more efficient function call ABI which passes the first three
-	arguments of a function call via registers, which results in denser
-	and faster code.
-
-	If this option is disabled, then the default ABI of passing
-	arguments via the stack is used.
-
-	If unsure, say Y.
-
 config SECCOMP
 	bool "Enable seccomp to safely compute untrusted bytecode"
 	depends on PROC_FS

trunk/arch/i386/Makefile

@@ -31,16 +31,14 @@ LDFLAGS_vmlinux := --emit-relocs
 endif
 CHECKFLAGS	+= -D__i386__
 
-CFLAGS += -pipe -msoft-float
+CFLAGS += -pipe -msoft-float -mregparm=3
 
 # prevent gcc from keeping the stack 16 byte aligned
 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
 
 # CPU-specific tuning. Anything which can be shared with UML should go here.
 include $(srctree)/arch/i386/Makefile.cpu
 
-cflags-$(CONFIG_REGPARM) += -mregparm=3
-
 # temporary until string.h is fixed
 cflags-y += -ffreestanding
 

trunk/include/asm-i386/module.h

@@ -62,18 +62,12 @@ struct mod_arch_specific
 #error unknown processor family
 #endif
 
-#ifdef CONFIG_REGPARM
-#define MODULE_REGPARM "REGPARM "
-#else
-#define MODULE_REGPARM ""
-#endif
-
 #ifdef CONFIG_4KSTACKS
 #define MODULE_STACKSIZE "4KSTACKS "
 #else
 #define MODULE_STACKSIZE ""
 #endif
 
-#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_REGPARM MODULE_STACKSIZE
+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_STACKSIZE
 
 #endif /* _ASM_I386_MODULE_H */