/* * 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"); b717d60e363171b39e6'>refslogtreecommitdiff
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authorGabriel Krisman Bertazi <krisman@collabora.co.uk>2017-01-16 12:23:42 -0200
committerUlf Hansson <ulf.hansson@linaro.org>2017-01-31 11:26:49 +0100
commit161e6d44a5e2d3f85365cb717d60e363171b39e6 (patch)
tree5c8b730a137696ef979f05ceae869b6e0348794c
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
mmc: sdhci: Ignore unexpected CARD_INT interrupts
One of our kernelCI boxes hanged at boot because a faulty eSDHC device was triggering spurious CARD_INT interrupts for SD cards, causing CMD52 reads, which are not allowed for SD devices. This adds a sanity check to the interruption path, preventing that illegal command from getting sent if the CARD_INT interruption should be disabled. This quirk allows that particular machine to resume boot despite the faulty hardware, instead of getting hung dealing with thousands of mishandled interrupts. Suggested-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: <stable@vger.kernel.org>