tracing: add comment for use of double __builtin_consant_p

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Impact: documentation

The use of the double __builtin_contant_p checks in the event_trace_printk
can be confusing to developers and reviewers. This patch adds a comment
to explain why it is there.

Requested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
LKML-Reference: <20090313122235.43EB.A69D9226@jp.fujitsu.com>
Signed-off-by: Steven Rostedt <srostedt@redhat.com>

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This commit is contained in:

Steven Rostedt 2009-03-13 00:12:52 -04:00

parent eb1871f343

commit bdc067582b

1 changed files with 5 additions and 0 deletions

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kernel/trace/trace.h

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