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Commit 63384fd0 authored by Simon Baatz's avatar Simon Baatz Committed by Russell King
Browse files

ARM: 7772/1: Fix missing flush_kernel_dcache_page() for noMMU 



Commit 1bc39742 (ARM: 7755/1: handle user space mapped pages in
flush_kernel_dcache_page) moved the implementation of
flush_kernel_dcache_page() into mm/flush.c but did not implement it
on noMMU ARM.

Signed-off-by: default avatarSimon Baatz <gmbnomis@gmail.com>
Acked-by: default avatarKevin Hilman <khilman@linaro.org>
Cc: <stable@vger.kernel.org> # 3.2+: 1bc39742: ARM: 7755/1
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 18d7f152

arch/arm/mm/nommu.c

+6 −0
Original line number Diff line number Diff line
@@ -57,6 +57,12 @@ void flush_dcache_page(struct page *page) 
}

EXPORT_SYMBOL(flush_dcache_page);



void flush_kernel_dcache_page(struct page *page)

{

	__cpuc_flush_dcache_area(page_address(page), PAGE_SIZE);

}

EXPORT_SYMBOL(flush_kernel_dcache_page);



void copy_to_user_page(struct vm_area_struct *vma, struct page *page,

		       unsigned long uaddr, void *dst, const void *src,

		       unsigned long len)