From: David S. Miller <davem@davemloft.net>
Date: Fri, 18 Sep 2009 00:46:46 +0000 (-0700)
Subject: sparc64: vio: Kill BUILD_BUG_ON() in vio_dring_avail().
X-Git-Tag: v2.6.32-rc1~22^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=87ba00515657eede6077fa195ca6592b98cc31e3;p=thirdparty%2Fkernel%2Flinux.git

sparc64: vio: Kill BUILD_BUG_ON() in vio_dring_avail().

GCC can't see the 'constant' properly as computed by
is_power_of_2() etc.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h
index d4de32f0f8afd..9d83d3bcb494b 100644
--- a/arch/sparc/include/asm/vio.h
+++ b/arch/sparc/include/asm/vio.h
@@ -258,8 +258,6 @@ static inline void *vio_dring_entry(struct vio_dring_state *dr,
 static inline u32 vio_dring_avail(struct vio_dring_state *dr,
 				  unsigned int ring_size)
 {
-	BUILD_BUG_ON(!is_power_of_2(ring_size));
-
 	return (dr->pending -
 		((dr->prod - dr->cons) & (ring_size - 1)));
 }