arch/tile: fix pointer cast in cacheflush.c

Pragmatically it couldn't be wrong to cast pointers to long to compare
them (since all kernel addresses are in the top half of VA space),
but it's more correct to cast to unsigned long.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

diff --git a/arch/tile/lib/cacheflush.c b/arch/tile/lib/cacheflush.c
index 8928aace7a641d8a2b7be866f88deefb4f5f9a1e..6af2b97a68862c1bc57e4c1064f2e52c43f36bd5 100644 (file)
--- a/arch/tile/lib/cacheflush.c
+++ b/arch/tile/lib/cacheflush.c
@@ -109,7 +109,7 @@ void finv_buffer_remote(void *buffer, size_t size, int hfh)
 
        /* Figure out how far back we need to go. */
        base = p - (step_size * (load_count - 2));
-       if ((long)base < (long)buffer)
+       if ((unsigned long)base < (unsigned long)buffer)
                base = buffer;
 
        /*