/* * Moved here from drivers/net/net_init.c, which is: * Written 1993,1994,1995 by Donald Becker. */ #include #include #include #include #include static void ltalk_setup(struct net_device *dev) { /* Fill in the fields of the device structure with localtalk-generic values. */ dev->type = ARPHRD_LOCALTLK; dev->hard_header_len = LTALK_HLEN; dev->mtu = LTALK_MTU; dev->addr_len = LTALK_ALEN; dev->tx_queue_len = 10; dev->broadcast[0] = 0xFF; dev->flags = IFF_BROADCAST|IFF_MULTICAST|IFF_NOARP; } /** * alloc_ltalkdev - Allocates and sets up an localtalk device * @sizeof_priv: Size of additional driver-private structure to be allocated * for this localtalk device * * Fill in the fields of the device structure with localtalk-generic * values. Basically does everything except registering the device. * * Constructs a new net device, complete with a private data area of * size @sizeof_priv. A 32-byte (not bit) alignment is enforced for * this private data area. */ struct net_device *alloc_ltalkdev(int sizeof_priv) { return alloc_netdev(sizeof_priv, "lt%d", NET_NAME_UNKNOWN, ltalk_setup); } EXPORT_SYMBOL(alloc_ltalkdev); packet-loop-back'>packet-loop-back net-next plumbingsTobias Klauser
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authorMarc Zyngier <marc.zyngier@arm.com>2017-01-17 16:00:48 +0000
committerThomas Gleixner <tglx@linutronix.de>2017-01-30 15:18:56 +0100
commit08d85f3ea99f1eeafc4e8507936190e86a16ee8c (patch)
tree410bb1acd0cd7dcfaad37ae7b63ff243b7fa4bee /net/irda/irlan/Makefile
parent566cf877a1fcb6d6dc0126b076aad062054c2637 (diff)
irqdomain: Avoid activating interrupts more than once
Since commit f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early"), we can end-up activating a PCI/MSI twice (once at allocation time, and once at startup time). This is normally of no consequences, except that there is some HW out there that may misbehave if activate is used more than once (the GICv3 ITS, for example, uses the activate callback to issue the MAPVI command, and the architecture spec says that "If there is an existing mapping for the EventID-DeviceID combination, behavior is UNPREDICTABLE"). While this could be worked around in each individual driver, it may make more sense to tackle the issue at the core level. In order to avoid getting in that situation, let's have a per-interrupt flag to remember if we have already activated that interrupt or not. Fixes: f3b0946d629c ("genirq/msi: Make sure PCI MSIs are activated early") Reported-and-tested-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1484668848-24361-1-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'net/irda/irlan/Makefile')