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-rw-r--r--kernel/printk.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index e9be027..ac8a08f 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -491,7 +491,10 @@ __attribute__((weak)) unsigned long long printk_clock(void)
return sched_clock();
}
-/*
+/**
+ * printk - print a kernel message
+ * @fmt: format string
+ *
* This is printk. It can be called from any context. We want it to work.
*
* We try to grab the console_sem. If we succeed, it's easy - we log the output and
@@ -503,6 +506,9 @@ __attribute__((weak)) unsigned long long printk_clock(void)
* One effect of this deferred printing is that code which calls printk() and
* then changes console_loglevel may break. This is because console_loglevel
* is inspected when the actual printing occurs.
+ *
+ * See also:
+ * printf(3)
*/
asmlinkage int printk(const char *fmt, ...)
@@ -655,6 +661,9 @@ static void call_console_drivers(unsigned long start, unsigned long end)
/**
* add_preferred_console - add a device to the list of preferred consoles.
+ * @name: device name
+ * @idx: device index
+ * @options: options for this console
*
* The last preferred console added will be used for kernel messages
* and stdin/out/err for init. Normally this is used by console_setup
@@ -764,7 +773,8 @@ void release_console_sem(void)
}
EXPORT_SYMBOL(release_console_sem);
-/** console_conditional_schedule - yield the CPU if required
+/**
+ * console_conditional_schedule - yield the CPU if required
*
* If the console code is currently allowed to sleep, and
* if this CPU should yield the CPU to another task, do
@@ -976,6 +986,8 @@ EXPORT_SYMBOL(unregister_console);
/**
* tty_write_message - write a message to a certain tty, not just the console.
+ * @tty: the destination tty_struct
+ * @msg: the message to write
*
* This is used for messages that need to be redirected to a specific tty.
* We don't put it into the syslog queue right now maybe in the future if
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