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Commit 6f78a197 authored by Robert P. J. Day's avatar Robert P. J. Day Committed by David S. Miller
Browse files

[SPARC64]: Use "is_power_of_2" macro for simplicity. 



Signed-off-by: default avatarRobert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9c969ffe

include/asm-sparc64/vio.h

+2 −2
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
#include <linux/spinlock.h>

#include <linux/completion.h>

#include <linux/list.h>

#include <linux/log2.h>



#include <asm/ldc.h>

#include <asm/mdesc.h>
@@ -257,8 +258,7 @@ 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)

{

	/* Ensure build-time power-of-2.  */

	BUILD_BUG_ON(ring_size & (ring_size - 1));

	BUILD_BUG_ON(!is_power_of_2(ring_size));



	return (dr->pending -

		((dr->prod - dr->cons) & (ring_size - 1)));