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ARM: 9306/1: cacheflush: avoid __flush_anon_page() missing-prototype warning

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The prototype for __flush_anon_page() is intentionally hidden
inside the flush_anon_page() inline function to prevent it from
being called from drivers.

When building with 'W=1', this causes a warning:

arch/arm/mm/flush.c:358:6: error: no previous prototype for '__flush_anon_page' [-Werror=missing-prototypes]

Work around this by adding a prototype directly next to the function
definition.

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 19:28:46 +01:00 • committed by Russell King (Oracle)
parent 34bde7f271
commit 57ea76fd1c
1 changed files with 1 additions and 0 deletions
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1
arch/arm/mm/flush.c
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@ -354,6 +354,7 @@ EXPORT_SYMBOL(flush_dcache_page);
* memcpy() to/from page
* if written to page, flush_dcache_page()
*/
void __flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr);
void __flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
{
unsigned long pfn;