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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 19:02:13 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-22 19:02:13 -0400
commit5d4e2d08e7fdf7339f84a1c670d296a77e02f881 (patch)
tree1c419660defa56191091dfdf50fdb57a72009173 /include/linux/dynamic_debug.h
parentfb2123fad3b499f0898835b19dbb93b18d27ee98 (diff)
parent94ca629e40eb7e997be21d8065c25e4f3797b03f (diff)
Merge tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman: "Here's the driver core, and other driver subsystems, pull request for the 3.5-rc1 merge window. Outside of a few minor driver core changes, we ended up with the following different subsystem and core changes as well, due to interdependancies on the driver core: - hyperv driver updates - drivers/memory being created and some drivers moved into it - extcon driver subsystem created out of the old Android staging switch driver code - dynamic debug updates - printk rework, and /dev/kmsg changes All of this has been tested in the linux-next releases for a few weeks with no reported problems. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed that a patch to the deleted drivers/misc/max8997-muic.c driver needs to be applied to this one. * tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits) uio_pdrv_genirq: get irq through platform resource if not set otherwise memory: tegra{20,30}-mc: Remove empty *_remove() printk() - isolate KERN_CONT users from ordinary complete lines sysfs: get rid of some lockdep false positives Drivers: hv: util: Properly handle version negotiations. Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp() memory: tegra{20,30}-mc: Use dev_err_ratelimited() driver core: Add dev_*_ratelimited() family Driver Core: don't oops with unregistered driver in driver_find_device() printk() - restore prefix/timestamp printing for multi-newline strings printk: add stub for prepend_timestamp() ARM: tegra30: Make MC optional in Kconfig ARM: tegra20: Make MC optional in Kconfig ARM: tegra30: MC: Remove unnecessary BUG*() ARM: tegra20: MC: Remove unnecessary BUG*() printk: correctly align __log_buf ARM: tegra30: Add Tegra Memory Controller(MC) driver ARM: tegra20: Add Tegra Memory Controller(MC) driver printk() - restore timestamp printing at console output printk() - do not merge continuation lines of different threads ...
Diffstat (limited to 'include/linux/dynamic_debug.h')
-rw-r--r--include/linux/dynamic_debug.h22
1 files changed, 20 insertions, 2 deletions
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 7e3c53a900d8..c18257b0fa72 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -17,8 +17,8 @@ struct _ddebug {
17 const char *format; 17 const char *format;
18 unsigned int lineno:18; 18 unsigned int lineno:18;
19 /* 19 /*
20 * The flags field controls the behaviour at the callsite. 20 * The flags field controls the behaviour at the callsite.
21 * The bits here are changed dynamically when the user 21 * The bits here are changed dynamically when the user
22 * writes commands to <debugfs>/dynamic_debug/control 22 * writes commands to <debugfs>/dynamic_debug/control
23 */ 23 */
24#define _DPRINTK_FLAGS_NONE 0 24#define _DPRINTK_FLAGS_NONE 0
@@ -44,6 +44,9 @@ extern int ddebug_remove_module(const char *mod_name);
44extern __printf(2, 3) 44extern __printf(2, 3)
45int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...); 45int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
46 46
47extern int ddebug_dyndbg_module_param_cb(char *param, char *val,
48 const char *modname);
49
47struct device; 50struct device;
48 51
49extern __printf(3, 4) 52extern __printf(3, 4)
@@ -94,11 +97,26 @@ do { \
94 97
95#else 98#else
96 99
100#include <linux/string.h>
101#include <linux/errno.h>
102
97static inline int ddebug_remove_module(const char *mod) 103static inline int ddebug_remove_module(const char *mod)
98{ 104{
99 return 0; 105 return 0;
100} 106}
101 107
108static inline int ddebug_dyndbg_module_param_cb(char *param, char *val,
109 const char *modname)
110{
111 if (strstr(param, "dyndbg")) {
112 /* avoid pr_warn(), which wants pr_fmt() fully defined */
113 printk(KERN_WARNING "dyndbg param is supported only in "
114 "CONFIG_DYNAMIC_DEBUG builds\n");
115 return 0; /* allow and ignore */
116 }
117 return -EINVAL;
118}
119
102#define dynamic_pr_debug(fmt, ...) \ 120#define dynamic_pr_debug(fmt, ...) \
103 do { if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); } while (0) 121 do { if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); } while (0)
104#define dynamic_dev_dbg(dev, fmt, ...) \ 122#define dynamic_dev_dbg(dev, fmt, ...) \