xen-blkfront: Fix handling of non-supported operations
This patch fixes the following sparse warnings:
drivers/block/xen-blkfront.c:916:45: warning: incorrect type in argument 2 (different base types)
drivers/block/xen-blkfront.c:916:45: expected restricted blk_status_t [usertype] error
drivers/block/xen-blkfront.c:916:45: got int [signed] error
drivers/block/xen-blkfront.c:1599:47: warning: incorrect type in assignment (different base types)
drivers/block/xen-blkfront.c:1599:47: expected int [signed] error
drivers/block/xen-blkfront.c:1599:47: got restricted blk_status_t [usertype] <noident>
drivers/block/xen-blkfront.c:1607:55: warning: incorrect type in assignment (different base types)
drivers/block/xen-blkfront.c:1607:55: expected int [signed] error
drivers/block/xen-blkfront.c:1607:55: got restricted blk_status_t [usertype] <noident>
drivers/block/xen-blkfront.c:1625:55: warning: incorrect type in assignment (different base types)
drivers/block/xen-blkfront.c:1625:55: expected int [signed] error
drivers/block/xen-blkfront.c:1625:55: got restricted blk_status_t [usertype] <noident>
drivers/block/xen-blkfront.c:1628:62: warning: restricted blk_status_t degrades to integer
Compile-tested only.
Fixes: commit 2a842acab109 ("block: introduce new block status code type")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Roger Pau Monné <roger.pau@citrix.com>
Cc: <xen-devel@lists.xenproject.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index c852ed3..1799bba 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -111,7 +111,7 @@
};
struct blkif_req {
- int error;
+ blk_status_t error;
};
static inline struct blkif_req *blkif_req(struct request *rq)
@@ -1616,7 +1616,7 @@
if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) {
printk(KERN_WARNING "blkfront: %s: %s op failed\n",
info->gd->disk_name, op_name(bret->operation));
- blkif_req(req)->error = -EOPNOTSUPP;
+ blkif_req(req)->error = BLK_STS_NOTSUPP;
}
if (unlikely(bret->status == BLKIF_RSP_ERROR &&
rinfo->shadow[id].req.u.rw.nr_segments == 0)) {