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

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

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2009-09-17 17:46:46 -07:00
parent 0a375d7590
commit 87ba005156
1 changed files with 0 additions and 2 deletions
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2
arch/sparc/include/asm/vio.h
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@@ -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, static inline u32 vio_dring_avail(struct vio_dring_state *dr,
unsigned int ring_size) unsigned int ring_size)
{ {
BUILD_BUG_ON(!is_power_of_2(ring_size));
return (dr->pending - return (dr->pending -
((dr->prod - dr->cons) & (ring_size - 1))); ((dr->prod - dr->cons) & (ring_size - 1)));
} }