From d094a0734cee439fc8483118694079c85b1cc3db Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Sat, 17 Oct 2020 14:31:58 +0200 Subject: 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 Reviewed-by: Simon Glass --- doc/develop/logging.rst | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'doc/develop') diff --git a/doc/develop/logging.rst b/doc/develop/logging.rst index 28340a4aac7..528280c3e8d 100644 --- a/doc/develop/logging.rst +++ b/doc/develop/logging.rst @@ -38,6 +38,9 @@ There are a number logging levels available, in increasing order of verbosity: * 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 @@ The following main categories are defined: * 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 ---------------- -- cgit v1.2.3