#ifndef __SOUND_SEQ_MIDI_EVENT_H #define __SOUND_SEQ_MIDI_EVENT_H /* * MIDI byte <-> sequencer event coder * * Copyright (C) 1998,99 Takashi Iwai , * Jaroslav Kysela * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #define MAX_MIDI_EVENT_BUF 256 /* midi status */ struct snd_midi_event { int qlen; /* queue length */ int read; /* chars read */ int type; /* current event type */ unsigned char lastcmd; /* last command (for MIDI state handling) */ unsigned char nostat; /* no state flag */ int bufsize; /* allocated buffer size */ unsigned char *buf; /* input buffer */ spinlock_t lock; }; int snd_midi_event_new(int bufsize, struct snd_midi_event **rdev); void snd_midi_event_free(struct snd_midi_event *dev); void snd_midi_event_reset_encode(struct snd_midi_event *dev); void snd_midi_event_reset_decode(struct snd_midi_event *dev); void snd_midi_event_no_status(struct snd_midi_event *dev, int on); /* encode from byte stream - return number of written bytes if success */ long snd_midi_event_encode(struct snd_midi_event *dev, unsigned char *buf, long count, struct snd_seq_event *ev); int snd_midi_event_encode_byte(struct snd_midi_event *dev, int c, struct snd_seq_event *ev); /* decode from event to bytes - return number of written bytes if success */ long snd_midi_event_decode(struct snd_midi_event *dev, unsigned char *buf, long count, struct snd_seq_event *ev); #endif /* __SOUND_SEQ_MIDI_EVENT_H */ ivers/usb/host/fhci.h?h=nds-private-remove&id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>diff
path: root/drivers/usb/host/fhci.h
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authorChristoph Hellwig <hch@lst.de>2017-01-30 13:15:41 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-02 10:35:46 -0600
commitdfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch)
treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /drivers/usb/host/fhci.h
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/usb/host/fhci.h')