log: allow for message continuation
Some drivers use macro pr_cont() for continuing a message sent via printk.
Hence if we want to convert printk messaging to using the logging system,
we must support continuation of log messages too.
As pr_cont() does not provide a message level we need a means of
remembering the last log level.
With the patch a pseudo log level LOGL_CONT as well as a pseudo log
category LOGC_CONT are introduced. Using these results in the application
of the same log level and category as in the previous log message.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/develop/logging.rst b/doc/develop/logging.rst
index 28340a4..528280c 100644
--- a/doc/develop/logging.rst
+++ b/doc/develop/logging.rst
@@ -38,6 +38,9 @@
* LOGL_DEBUG_CONTENT - Debug message showing full message content
* LOGL_DEBUG_IO - Debug message showing hardware I/O access
+To continue a log message in a separate call of function log() use
+
+* LOGL_CONT - Use same log level as in previous call
Logging category
----------------
@@ -56,6 +59,9 @@
* LOGC_DT - Related to device tree control
* LOGC_EFI - Related to EFI implementation
+To continue a log message in a separate call of function log() use
+
+* LOGC_CONT - Use same category as in previous call
Enabling logging
----------------