staging: ion: remove dead code

ion_heap_pages_zero() function is not used at all, so remove it to
simplify the ion_heap_sglist_zero() function later.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20200619103636.11974-30-m.szyprowski@samsung.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h
index 74914a2..c199e88 100644 (file)
--- a/drivers/staging/android/ion/ion.h
+++ b/drivers/staging/android/ion/ion.h
@@ -177,7 +177,6 @@ void ion_heap_unmap_kernel(struct ion_heap *heap, struct ion_buffer *buffer);
 int ion_heap_map_user(struct ion_heap *heap, struct ion_buffer *buffer,
                      struct vm_area_struct *vma);
 int ion_heap_buffer_zero(struct ion_buffer *buffer);
-int ion_heap_pages_zero(struct page *page, size_t size, pgprot_t pgprot);
 
 /**
  * ion_heap_init_shrinker

diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c
index 0755b11..9c23b23 100644 (file)
--- a/drivers/staging/android/ion/ion_heap.c
+++ b/drivers/staging/android/ion/ion_heap.c
@@ -145,15 +145,6 @@ int ion_heap_buffer_zero(struct ion_buffer *buffer)
        return ion_heap_sglist_zero(table->sgl, table->nents, pgprot);
 }
 
-int ion_heap_pages_zero(struct page *page, size_t size, pgprot_t pgprot)
-{
-       struct scatterlist sg;
-
-       sg_init_table(&sg, 1);
-       sg_set_page(&sg, page, size, 0);
-       return ion_heap_sglist_zero(&sg, 1, pgprot);
-}
-
 void ion_heap_freelist_add(struct ion_heap *heap, struct ion_buffer *buffer)
 {
        spin_lock(&heap->free_lock);