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powerpc/mm: Always use STRICT_MM_TYPECHECKS
Testing done by Paul Mackerras has shown that with a modern compiler there is no negative effect on code generation from enabling STRICT_MM_TYPECHECKS. So remove the option, and always use the strict type definitions. Acked-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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2 changed files with 0 additions and 54 deletions
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@ -19,14 +19,6 @@ config PPC_WERROR
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depends on !PPC_DISABLE_WERROR
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depends on !PPC_DISABLE_WERROR
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default y
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default y
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config STRICT_MM_TYPECHECKS
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bool "Do extra type checking on mm types"
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default n
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help
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This option turns on extra type checking for some mm related types.
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If you don't know what this means, say N.
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config PRINT_STACK_DEPTH
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config PRINT_STACK_DEPTH
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int "Stack depth to print" if DEBUG_KERNEL
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int "Stack depth to print" if DEBUG_KERNEL
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default 64
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default 64
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@ -1,9 +1,6 @@
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#ifndef _ASM_POWERPC_PGTABLE_TYPES_H
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#ifndef _ASM_POWERPC_PGTABLE_TYPES_H
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#define _ASM_POWERPC_PGTABLE_TYPES_H
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#define _ASM_POWERPC_PGTABLE_TYPES_H
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#ifdef CONFIG_STRICT_MM_TYPECHECKS
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/* These are used to make use of C type-checking. */
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/* PTE level */
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/* PTE level */
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typedef struct { pte_basic_t pte; } pte_t;
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typedef struct { pte_basic_t pte; } pte_t;
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#define __pte(x) ((pte_t) { (x) })
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#define __pte(x) ((pte_t) { (x) })
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@ -48,49 +45,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
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#define pgprot_val(x) ((x).pgprot)
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#define pgprot_val(x) ((x).pgprot)
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#define __pgprot(x) ((pgprot_t) { (x) })
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#define __pgprot(x) ((pgprot_t) { (x) })
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#else
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/*
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* .. while these make it easier on the compiler
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*/
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typedef pte_basic_t pte_t;
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#define __pte(x) (x)
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static inline pte_basic_t pte_val(pte_t pte)
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{
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return pte;
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}
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#ifdef CONFIG_PPC64
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typedef unsigned long pmd_t;
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#define __pmd(x) (x)
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static inline unsigned long pmd_val(pmd_t pmd)
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{
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return pmd;
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}
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#if defined(CONFIG_PPC_BOOK3S_64) || !defined(CONFIG_PPC_64K_PAGES)
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typedef unsigned long pud_t;
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#define __pud(x) (x)
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static inline unsigned long pud_val(pud_t pud)
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{
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return pud;
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}
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#endif /* CONFIG_PPC_BOOK3S_64 || !CONFIG_PPC_64K_PAGES */
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#endif /* CONFIG_PPC64 */
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typedef unsigned long pgd_t;
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#define __pgd(x) (x)
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static inline unsigned long pgd_val(pgd_t pgd)
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{
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return pgd;
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}
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typedef unsigned long pgprot_t;
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#define pgprot_val(x) (x)
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#define __pgprot(x) (x)
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#endif /* CONFIG_STRICT_MM_TYPECHECKS */
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/*
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/*
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* With hash config 64k pages additionally define a bigger "real PTE" type that
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* With hash config 64k pages additionally define a bigger "real PTE" type that
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* gathers the "second half" part of the PTE for pseudo 64k pages
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* gathers the "second half" part of the PTE for pseudo 64k pages
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