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    Subject[PATCH 4.9 05/41] xtensa: mm/cache: add missing EXPORT_SYMBOLs
    Date
    4.9-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    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);

    #endif /* DCACHE_WAY_SIZE > PAGE_SIZE */


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