[PATCH 4.9 05/41] xtensa: mm/cache: add missing EXPORT_SYMBOLs

Greg Kroah-Hartman
2017-08-15T01:43:17Z

From: Max Filippov <jcmvbkbc@gmail.com>

commit bc652eb6a0d5cffaea7dc8e8ad488aab2a1bf1ed upstream.

Functions clear_user_highpage, copy_user_highpage, flush_dcache_page,
local_flush_cache_range and local_flush_cache_page may be used from
modules. Export them.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index dbb1cdef3663..3c75c4e597da 100644
--- a/arch/xtensa/mm/cache.c
+++ b/arch/xtensa/mm/cache.c
@@ -103,6 +103,7 @@ void clear_user_highpage(struct page *page, unsigned long vaddr)
clear_page_alias(kvaddr, paddr);
preempt_enable();
}
+EXPORT_SYMBOL(clear_user_highpage);

void copy_user_highpage(struct page *dst, struct page *src,
unsigned long vaddr, struct vm_area_struct *vma)
@@ -119,6 +120,7 @@ void copy_user_highpage(struct page *dst, struct page *src,
copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr);
preempt_enable();
}
+EXPORT_SYMBOL(copy_user_highpage);

/*
* Any time the kernel writes to a user page cache page, or it is about to
@@ -172,7 +174,7 @@ void flush_dcache_page(struct page *page)

/* There shouldn't be an entry in the cache for this page anymore. */
}
-
+EXPORT_SYMBOL(flush_dcache_page);

/*
* For now, flush the whole cache. FIXME??
@@ -184,6 +186,7 @@ void local_flush_cache_range(struct vm_area_struct *vma,
__flush_invalidate_dcache_all();
__invalidate_icache_all();
}
+EXPORT_SYMBOL(local_flush_cache_range);

/*
* Remove any entry in the cache for this page.
@@ -203,6 +206,7 @@ void local_flush_cache_page(struct vm_area_struct *vma, unsigned long address,
__flush_invalidate_dcache_page_alias(virt, phys);
__invalidate_icache_page_alias(virt, phys);
}
+EXPORT_SYMBOL(local_flush_cache_page);