block: don't try Write Same from __blkdev_issue_zeroout

Write Same can return an error asynchronously if it turns out the
underlying SCSI device does not support Write Same, which makes a
proper fallback to other methods in __blkdev_issue_zeroout impossible.
Thus only issue a Write Same from blkdev_issue_zeroout an don't try it
at all from __blkdev_issue_zeroout as a non-invasive workaround.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Tested-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

path: root/include/net/p8022.h

#ifndef _NET_P8022_H
#define _NET_P8022_H
struct datalink_proto *
register_8022_client(unsigned char type,
		     int (*func)(struct sk_buff *skb,
				 struct net_device *dev,
				 struct packet_type *pt,
				 struct net_device *orig_dev));
void unregister_8022_client(struct datalink_proto *proto);

struct datalink_proto *make_8023_client(void);
void destroy_8023_client(struct datalink_proto *dl);
#endif