From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Subject: dynamic-debug-howto: fix optional/omitted ending line number to be LARGE instead of 0 line-range is supposed to treat "1-" as "1-endoffile", so handle the special case by setting last_lineno to UINT_MAX. Fixes this error: dynamic_debug:ddebug_parse_query: last-line:0 < 1st-line:1 dynamic_debug:ddebug_exec_query: query parse failed Link: http://lkml.kernel.org/r/10a6a101-e2be-209f-1f41-54637824788e@xxxxxxxxxxxxx Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Acked-by: Jason Baron <jbaron@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/dynamic_debug.c | 4 ++++ 1 file changed, 4 insertions(+) diff -puN lib/dynamic_debug.c~dynamic_debug-fix-optional-omitted-ending-line-number-to-be-large-instead-of-0 lib/dynamic_debug.c --- a/lib/dynamic_debug.c~dynamic_debug-fix-optional-omitted-ending-line-number-to-be-large-instead-of-0 +++ a/lib/dynamic_debug.c @@ -360,6 +360,10 @@ static int ddebug_parse_query(char *word if (parse_lineno(last, &query->last_lineno) < 0) return -EINVAL; + /* special case for last lineno not specified */ + if (query->last_lineno == 0) + query->last_lineno = UINT_MAX; + if (query->last_lineno < query->first_lineno) { pr_err("last-line:%d < 1st-line:%d\n", query->last_lineno, _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
