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log: move processing_msg to global data

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Replace the static variable processing_msg by a field in the global data.
Make the field bool at it can only be true or false.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2020-10-17 14:31:57 +02:00 • committed by Tom Rini
parent 986c980c82
commit 993a06b614
2 changed files with 11 additions and 4 deletions
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7
common/log.c
View file

@ -199,24 +199,23 @@ static bool log_passes_filters(struct log_device *ldev, struct log_rec *rec)
static int log_dispatch(struct log_rec *rec)
{
struct log_device *ldev;
static int processing_msg;
/*
* When a log driver writes messages (e.g. via the network stack) this
* may result in further generated messages. We cannot process them here
* as this might result in infinite recursion.
*/
if (processing_msg)
if (gd->processing_msg)
return 0;
/* Emit message */
processing_msg = 1;
gd->processing_msg = true;
list_for_each_entry(ldev, &gd->log_head, sibling_node) {
if ((ldev->flags & LOGDF_ENABLE) &&
log_passes_filters(ldev, rec))
ldev->drv->emit(ldev, rec);
}
processing_msg = 0;
gd->processing_msg = false;
return 0;
}

8
include/asm-generic/global_data.h
View file

@ -363,6 +363,14 @@ 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;
#endif
#if CONFIG_IS_ENABLED(BLOBLIST)
/**