/* * Copyright (C) International Business Machines Corp., 2000-2002 * Portions Copyright (C) Christoph Hellwig, 2001-2002 * * 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 */ #ifndef _H_JFS_DEBUG #define _H_JFS_DEBUG /* * jfs_debug.h * * global debug message, data structure/macro definitions * under control of CONFIG_JFS_DEBUG, CONFIG_JFS_STATISTICS; */ /* * Create /proc/fs/jfs if procfs is enabled andeither * CONFIG_JFS_DEBUG or CONFIG_JFS_STATISTICS is defined */ #if defined(CONFIG_PROC_FS) && (defined(CONFIG_JFS_DEBUG) || defined(CONFIG_JFS_STATISTICS)) #define PROC_FS_JFS extern void jfs_proc_init(void); extern void jfs_proc_clean(void); #endif /* * assert with traditional printf/panic */ #define assert(p) do { \ if (!(p)) { \ printk(KERN_CRIT "BUG at %s:%d assert(%s)\n", \ __FILE__, __LINE__, #p); \ BUG(); \ } \ } while (0) /* * debug ON * -------- */ #ifdef CONFIG_JFS_DEBUG #define ASSERT(p) assert(p) /* printk verbosity */ #define JFS_LOGLEVEL_ERR 1 #define JFS_LOGLEVEL_WARN 2 #define JFS_LOGLEVEL_DEBUG 3 #define JFS_LOGLEVEL_INFO 4 extern int jfsloglevel; extern const struct file_operations jfs_txanchor_proc_fops; /* information message: e.g., configuration, major event */ #define jfs_info(fmt, arg...) do { \ if (jfsloglevel >= JFS_LOGLEVEL_INFO) \ printk(KERN_INFO fmt "\n", ## arg); \ } while (0) /* debug message: ad hoc */ #define jfs_debug(fmt, arg...) do { \ if (jfsloglevel >= JFS_LOGLEVEL_DEBUG) \ printk(KERN_DEBUG fmt "\n", ## arg); \ } while (0) /* warn message: */ #define jfs_warn(fmt, arg...) do { \ if (jfsloglevel >= JFS_LOGLEVEL_WARN) \ printk(KERN_WARNING fmt "\n", ## arg); \ } while (0) /* error event message: e.g., i/o error */ #define jfs_err(fmt, arg...) do { \ if (jfsloglevel >= JFS_LOGLEVEL_ERR) \ printk(KERN_ERR fmt "\n", ## arg); \ } while (0) /* * debug OFF * --------- */ #else /* CONFIG_JFS_DEBUG */ #define ASSERT(p) do {} while (0) #define jfs_info(fmt, arg...) do {} while (0) #define jfs_debug(fmt, arg...) do {} while (0) #define jfs_warn(fmt, arg...) do {} while (0) #define jfs_err(fmt, arg...) do {} while (0) #endif /* CONFIG_JFS_DEBUG */ /* * statistics * ---------- */ #ifdef CONFIG_JFS_STATISTICS extern const struct file_operations jfs_lmstats_proc_fops; extern const struct file_operations jfs_txstats_proc_fops; extern const struct file_operations jfs_mpstat_proc_fops; extern const struct file_operations jfs_xtstat_proc_fops; #define INCREMENT(x) ((x)++) #define DECREMENT(x) ((x)--) #define HIGHWATERMARK(x,y) ((x) = max((x), (y))) #else #define INCREMENT(x) #define DECREMENT(x) #define HIGHWATERMARK(x,y) #endif /* CONFIG_JFS_STATISTICS */ #endif /* _H_JFS_DEBUG */ 4e5d599c7289526eed96541a0654'>netlabel_kapi.c
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /net/netlabel/netlabel_kapi.c
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'net/netlabel/netlabel_kapi.c')