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| author | Patrick Delaunay <patrick.delaunay@st.com> | 2020-11-27 11:20:52 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2021-01-15 14:36:11 -0500 |
| commit | f0e90e0eadbed59f0afb0d281816873339fd51ee (patch) | |
| tree | 196bacce6a26c6addf3ff38271c40ff762132dc6 /common/log.c | |
| parent | 6278ec1919fff83a4f0adde1e5d987852b154ebf (diff) | |
| download | u-boot-f0e90e0eadbed59f0afb0d281816873339fd51ee.tar.gz u-boot-f0e90e0eadbed59f0afb0d281816873339fd51ee.tar.xz u-boot-f0e90e0eadbed59f0afb0d281816873339fd51ee.zip | |
log: don't build the trace buffer when log is not ready
Update _log function to drop any traces when log is yet initialized:
vsnprintf is no more executed in this case.
This patch allows to reduce the cost for the dropped early debug trace.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'common/log.c')
| -rw-r--r-- | common/log.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/common/log.c b/common/log.c index ce39918e04..212789d6b3 100644 --- a/common/log.c +++ b/common/log.c @@ -228,6 +228,9 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file, struct log_rec rec; va_list args; + if (!gd) + return -ENOSYS; + /* Check for message continuation */ if (cat == LOGC_CONT) cat = gd->logc_prev; @@ -240,15 +243,15 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file, rec.file = file; rec.line = line; rec.func = func; + + if (!(gd->flags & GD_FLG_LOG_READY)) { + gd->log_drop_count++; + return -ENOSYS; + } va_start(args, fmt); vsnprintf(buf, sizeof(buf), fmt, args); va_end(args); rec.msg = buf; - if (!gd || !(gd->flags & GD_FLG_LOG_READY)) { - if (gd) - gd->log_drop_count++; - return -ENOSYS; - } if (!log_dispatch(&rec)) { gd->logc_prev = cat; gd->logl_prev = level; |