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ARM: 9305/1: add clear/copy_user_highpage declarations

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The CPU specific helpers have to be global functions when building
a kernel for just one CPU, but are called through indirect function
pointers in a multi-CPU kernel. This config currently lacks the
declarations for the individual helpers, e.g.:

arch/arm/mm/copypage-v4wb.c:47:6: error: no previous prototype for 'v4wb_copy_user_highpage' [-Werror=missing-prototypes]
arch/arm/mm/copypage-v4wb.c:65:6: error: no previous prototype for 'v4wb_clear_user_highpage' [-Werror=missing-prototypes]

Add the complete set of prototypes in asm/page.h to allow
building iwth -Wmissing-prototypes.

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Arnd Bergmann 2023-06-02 19:28:45 +01:00 committed by Russell King (Oracle)
parent ae1f8d793a
commit 34bde7f271
1 changed files with 22 additions and 0 deletions
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22
arch/arm/include/asm/page.h
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@ -113,6 +113,28 @@ struct cpu_user_fns {
unsigned long vaddr, struct vm_area_struct *vma);
};
void fa_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma);
void fa_clear_user_highpage(struct page *page, unsigned long vaddr);
void feroceon_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma);
void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr);
void v4_mc_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma);
void v4_mc_clear_user_highpage(struct page *page, unsigned long vaddr);
void v4wb_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma);
void v4wb_clear_user_highpage(struct page *page, unsigned long vaddr);
void v4wt_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma);
void v4wt_clear_user_highpage(struct page *page, unsigned long vaddr);
void xsc3_mc_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma);
void xsc3_mc_clear_user_highpage(struct page *page, unsigned long vaddr);
void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr, struct vm_area_struct *vma);
void xscale_mc_clear_user_highpage(struct page *page, unsigned long vaddr);
#ifdef MULTI_USER
extern struct cpu_user_fns cpu_user;