/* * NET3: 802.3 data link hooks used for IPX 802.3 * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * * 802.3 isn't really a protocol data link layer. Some old IPX stuff * uses it however. Note that there is only one 802.3 protocol layer * in the system. We don't currently support different protocols * running raw 802.3 on different devices. Thankfully nobody else * has done anything like the old IPX. */ #include #include #include #include #include #include #include #include /* * Place an 802.3 header on a packet. The driver will do the mac * addresses, we just need to give it the buffer length. */ static int p8023_request(struct datalink_proto *dl, struct sk_buff *skb, unsigned char *dest_node) { struct net_device *dev = skb->dev; dev_hard_header(skb, dev, ETH_P_802_3, dest_node, NULL, skb->len); return dev_queue_xmit(skb); } /* * Create an 802.3 client. Note there can be only one 802.3 client */ struct datalink_proto *make_8023_client(void) { struct datalink_proto *proto = kmalloc(sizeof(*proto), GFP_ATOMIC); if (proto) { proto->header_length = 0; proto->request = p8023_request; } return proto; } /* * Destroy the 802.3 client. */ void destroy_8023_client(struct datalink_proto *dl) { kfree(dl); } EXPORT_SYMBOL(destroy_8023_client); EXPORT_SYMBOL(make_8023_client); MODULE_LICENSE("GPL"); te-remove&id=eeeefd41843218c55a8782a6920f044d9bf6207a'>refslogtreecommitdiff
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authorChristoph Hellwig <hch@lst.de>2017-02-05 18:10:35 +0100
committerJens Axboe <axboe@fb.com>2017-02-06 09:34:46 -0700
commiteeeefd41843218c55a8782a6920f044d9bf6207a (patch)
treec342eac46626e62745aa8e1a982626efca8b121d /net/dns_resolver
parentc14024dbb156c8392908aaa822097d27c6af8ec8 (diff)
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>
Diffstat (limited to 'net/dns_resolver')