Subject: [PATCH 1/7] sunvdc: Fix off-by-one in generic_request().

From: "David S. Miller" <[email-masked]>
Date: Thu, 14 Feb 2013 11:49:01 -0800

[ Upstream commit f4d9605434c0fd4cc8639bf25cfc043418c52362 ]

The 'operations' bitmap corresponds one-for-one with the operation
codes, no adjustment is necessary.

Reported-by: Mark Kettenis <[email-masked]>
Signed-off-by: David S. Miller <[email-masked]>
---
 drivers/block/sunvdc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 9dcf76a..31dd451 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -461,7 +461,7 @@ static int generic_request(struct vdc_port *port, u8 op, void *buf, int len)
 	int op_len, err;
 	void *req_buf;
 
-	if (!(((u64)1 << ((u64)op - 1)) & port->operations))
+	if (!(((u64)1 << (u64)op) & port->operations))
 		return -EOPNOTSUPP;
 
 	switch (op) {
-- 
1.7.11.7