Merge branch '2020-10-27-further-log-enhancements'

- Allow for log message continuation.
- Test fix, build time error checking for new categories

2 files changed, 22 insertions, 0 deletions

diff --git a/include/asm-generic/global_data.h b/include/asm-generic/global_data.h
index ebb740d34f..0157af1aa4 100644
--- a/include/asm-generic/global_data.h
+++ b/include/asm-generic/global_data.h
@@ -363,6 +363,26 @@ struct global_data {
 	 * &enum log_fmt defines the bits of the bit mask.
 	 */
 	int log_fmt;
+
+	/**
+	 * @processing_msg: a log message is being processed
+	 *
+	 * This flag is used to suppress the creation of additional messages
+	 * while another message is being processed.
+	 */
+	bool processing_msg;
+	/**
+	 * @logc_prev: logging category of previous message
+	 *
+	 * This value is used as logging category for continuation messages.
+	 */
+	int logc_prev;
+	/**
+	 * @logl_pref: logging level of the previous message
+	 *
+	 * This value is used as logging level for continuation messages.
+	 */
+	int logl_prev;
 #endif
 #if CONFIG_IS_ENABLED(BLOBLIST)
 	/**
diff --git a/include/log.h b/include/log.h
index 6de5e611c7..58787a3532 100644
--- a/include/log.h
+++ b/include/log.h
@@ -38,6 +38,7 @@ enum log_level_t {
 
 	LOGL_FIRST = LOGL_EMERG,
 	LOGL_MAX = LOGL_DEBUG_IO,
+	LOGL_CONT = -1,		/* Use same log level as in previous call */
 };
 
 /**
@@ -65,6 +66,7 @@ enum log_category_t {
 
 	LOGC_COUNT,	/* Number of log categories */
 	LOGC_END,	/* Sentinel value for a list of log categories */
+	LOGC_CONT = -1,	/* Use same category as in previous call */
 };
 
 /* Helper to cast a uclass ID to a log category */