[patch 27/38] SLUB: Deal with annoying gcc warning on kfree()

[Greg KH]

2.6.24-stable review patch.  If anyone has any objections, please let us
know.

------------------
From: Christoph Lameter <clameter@xxxxxxx>

patch 5bb983b0cce9b7b281af15730f7019116dd42568 in mainline.

gcc 4.2 spits out an annoying warning if one casts a const void *
pointer to a void * pointer. No warning is generated if the
conversion is done through an assignment.

Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

---
 mm/slub.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2592,6 +2592,7 @@ EXPORT_SYMBOL(ksize);
 void kfree(const void *x)
 {
 	struct page *page;
+	void *object = (void *)x;
 
 	if (unlikely(ZERO_OR_NULL_PTR(x)))
 		return;
@@ -2601,7 +2602,7 @@ void kfree(const void *x)
 		put_page(page);
 		return;
 	}
-	slab_free(page->slab, page, (void *)x, __builtin_return_address(0));
+	slab_free(page->slab, page, object, __builtin_return_address(0));
 }
 EXPORT_SYMBOL(kfree);
 

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