#ifndef __SOUND_HOONTECH_H #define __SOUND_HOONTECH_H /* * ALSA driver for ICEnsemble ICE1712 (Envy24) * * Lowlevel functions for Hoontech STDSP24 * * Copyright (c) 2000 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 * */ #define HOONTECH_DEVICE_DESC \ "{Hoontech,SoundTrack DSP 24}," \ "{Hoontech,SoundTrack DSP 24 Value}," \ "{Hoontech,SoundTrack DSP 24 Media 7.1}," \ "{Event Electronics,EZ8}," #define ICE1712_SUBDEVICE_STDSP24 0x12141217 /* Hoontech SoundTrack Audio DSP 24 */ #define ICE1712_SUBDEVICE_STDSP24_VALUE 0x00010010 /* A dummy id for Hoontech SoundTrack Audio DSP 24 Value */ #define ICE1712_SUBDEVICE_STDSP24_MEDIA7_1 0x16141217 /* Hoontech ST Audio DSP24 Media 7.1 */ #define ICE1712_SUBDEVICE_EVENT_EZ8 0x00010001 /* A dummy id for EZ8 */ extern struct snd_ice1712_card_info snd_ice1712_hoontech_cards[]; /* Hoontech SoundTrack Audio DSP 24 GPIO definitions */ #define ICE1712_STDSP24_0_BOX(r, x) r[0] = ((r[0] & ~3) | ((x)&3)) #define ICE1712_STDSP24_0_DAREAR(r, x) r[0] = ((r[0] & ~4) | (((x)&1)<<2)) #define ICE1712_STDSP24_1_CHN1(r, x) r[1] = ((r[1] & ~1) | ((x)&1)) #define ICE1712_STDSP24_1_CHN2(r, x) r[1] = ((r[1] & ~2) | (((x)&1)<<1)) #define ICE1712_STDSP24_1_CHN3(r, x) r[1] = ((r[1] & ~4) | (((x)&1)<<2)) #define ICE1712_STDSP24_2_CHN4(r, x) r[2] = ((r[2] & ~1) | ((x)&1)) #define ICE1712_STDSP24_2_MIDIIN(r, x) r[2] = ((r[2] & ~2) | (((x)&1)<<1)) #define ICE1712_STDSP24_2_MIDI1(r, x) r[2] = ((r[2] & ~4) | (((x)&1)<<2)) #define ICE1712_STDSP24_3_MIDI2(r, x) r[3] = ((r[3] & ~1) | ((x)&1)) #define ICE1712_STDSP24_3_MUTE(r, x) r[3] = ((r[3] & ~2) | (((x)&1)<<1)) #define ICE1712_STDSP24_3_INSEL(r, x) r[3] = ((r[3] & ~4) | (((x)&1)<<2)) #define ICE1712_STDSP24_SET_ADDR(r, a) r[a&3] = ((r[a&3] & ~0x18) | (((a)&3)<<3)) #define ICE1712_STDSP24_CLOCK(r, a, c) r[a&3] = ((r[a&3] & ~0x20) | (((c)&1)<<5)) #define ICE1712_STDSP24_CLOCK_BIT (1<<5) /* Hoontech SoundTrack Audio DSP 24 box configuration definitions */ #define ICE1712_STDSP24_DAREAR (1<<0) #define ICE1712_STDSP24_MUTE (1<<1) #define ICE1712_STDSP24_INSEL (1<<2) #define ICE1712_STDSP24_BOX_CHN1 (1<<0) /* input channel 1 */ #define ICE1712_STDSP24_BOX_CHN2 (1<<1) /* input channel 2 */ #define ICE1712_STDSP24_BOX_CHN3 (1<<2) /* input channel 3 */ #define ICE1712_STDSP24_BOX_CHN4 (1<<3) /* input channel 4 */ #define ICE1712_STDSP24_BOX_MIDI1 (1<<8) #define ICE1712_STDSP24_BOX_MIDI2 (1<<9) /* Hoontech SoundTrack Audio DSP 24 Value definitions for modified hardware */ #define ICE1712_STDSP24_AK4524_CS 0x03 /* AK4524 chip select; low = active */ #define ICE1712_STDSP24_SERIAL_DATA 0x0c /* ak4524 data */ #define ICE1712_STDSP24_SERIAL_CLOCK 0x30 /* ak4524 clock */ #endif /* __SOUND_HOONTECH_H */ et/function
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authorOndrej Kozina <okozina@redhat.com>2017-01-31 15:47:11 +0100
committerMike Snitzer <snitzer@redhat.com>2017-02-03 10:26:14 -0500
commitf5b0cba8f23915e92932f11eb063e37d70556a89 (patch)
tree19f7ccac636459333cca52027914d19084b1392b /drivers/usb/gadget/function
parent4087a1fffe38106e10646606a27f10d40451862d (diff)
dm crypt: replace RCU read-side section with rwsem
The lockdep splat below hints at a bug in RCU usage in dm-crypt that was introduced with commit c538f6ec9f56 ("dm crypt: add ability to use keys from the kernel key retention service"). The kernel keyring function user_key_payload() is in fact a wrapper for rcu_dereference_protected() which must not be called with only rcu_read_lock() section mark. Unfortunately the kernel keyring subsystem doesn't currently provide an interface that allows the use of an RCU read-side section. So for now we must drop RCU in favour of rwsem until a proper function is made available in the kernel keyring subsystem. =============================== [ INFO: suspicious RCU usage. ] 4.10.0-rc5 #2 Not tainted ------------------------------- ./include/keys/user-type.h:53 suspicious rcu_dereference_protected() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 2 locks held by cryptsetup/6464: #0: (&md->type_lock){+.+.+.}, at: [<ffffffffa02472a2>] dm_lock_md_type+0x12/0x20 [dm_mod] #1: (rcu_read_lock){......}, at: [<ffffffffa02822f8>] crypt_set_key+0x1d8/0x4b0 [dm_crypt] stack backtrace: CPU: 1 PID: 6464 Comm: cryptsetup Not tainted 4.10.0-rc5 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.1-1.fc24 04/01/2014 Call Trace: dump_stack+0x67/0x92 lockdep_rcu_suspicious+0xc5/0x100 crypt_set_key+0x351/0x4b0 [dm_crypt] ? crypt_set_key+0x1d8/0x4b0 [dm_crypt] crypt_ctr+0x341/0xa53 [dm_crypt] dm_table_add_target+0x147/0x330 [dm_mod] table_load+0x111/0x350 [dm_mod] ? retrieve_status+0x1c0/0x1c0 [dm_mod] ctl_ioctl+0x1f5/0x510 [dm_mod] dm_ctl_ioctl+0xe/0x20 [dm_mod] do_vfs_ioctl+0x8e/0x690 ? ____fput+0x9/0x10 ? task_work_run+0x7e/0xa0 ? trace_hardirqs_on_caller+0x122/0x1b0 SyS_ioctl+0x3c/0x70 entry_SYSCALL_64_fastpath+0x18/0xad RIP: 0033:0x7f392c9a4ec7 RSP: 002b:00007ffef6383378 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffef63830a0 RCX: 00007f392c9a4ec7 RDX: 000000000124fcc0 RSI: 00000000c138fd09 RDI: 0000000000000005 RBP: 00007ffef6383090 R08: 00000000ffffffff R09: 00000000012482b0 R10: 2a28205d34383336 R11: 0000000000000246 R12: 00007f392d803a08 R13: 00007ffef63831e0 R14: 0000000000000000 R15: 00007f392d803a0b Fixes: c538f6ec9f56 ("dm crypt: add ability to use keys from the kernel key retention service") Reported-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Ondrej Kozina <okozina@redhat.com> Reviewed-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/usb/gadget/function')