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authorJim Cromie <jim.cromie@gmail.com>2012-07-19 13:46:21 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-08-16 10:20:53 -0700
commitaf7f2158fdee9d7f55b793b09f8170a3391f889a (patch)
tree8667955bac67e38218234d3371ed227d6b27d859 /drivers/base/core.c
parent0d7614f09c1ebdbaa1599a5aba7593f147bf96ee (diff)
drivers-core: make structured logging play nice with dynamic-debug
commit c4e00daaa96d3a0786f1f4fe6456281c60ef9a16 changed __dev_printk in a way that broke dynamic-debug's ability to control the dynamic prefix of dev_dbg(dev,..), but not dev_dbg(NULL,..) or pr_debug(..), which is why it wasnt noticed sooner. When dev==NULL, __dev_printk() just calls printk(), which just works. But otherwise, it assumed that level was always a string like "<L>" and just plucked out the 'L', ignoring the rest. However, dynamic_emit_prefix() adds "[tid] module:func:line:" to the string, those additions all got lost. Signed-off-by: Jim Cromie <jim.cromie@gmail.com> Acked-by: Jason Baron <jbaron@redhat.com> Cc: stable <stable@vger.kernel.org> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/core.c')
-rw-r--r--drivers/base/core.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index f338037a4f3..cdd01c52c62 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1865,6 +1865,7 @@ int __dev_printk(const char *level, const struct device *dev,
struct va_format *vaf)
{
char dict[128];
+ const char *level_extra = "";
size_t dictlen = 0;
const char *subsys;
@@ -1911,10 +1912,14 @@ int __dev_printk(const char *level, const struct device *dev,
"DEVICE=+%s:%s", subsys, dev_name(dev));
}
skip:
+ if (level[3])
+ level_extra = &level[3]; /* skip past "<L>" */
+
return printk_emit(0, level[1] - '0',
dictlen ? dict : NULL, dictlen,
- "%s %s: %pV",
- dev_driver_string(dev), dev_name(dev), vaf);
+ "%s %s: %s%pV",
+ dev_driver_string(dev), dev_name(dev),
+ level_extra, vaf);
}
EXPORT_SYMBOL(__dev_printk);