lkml.org 
[lkml]   [2021]   [Apr]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] dyndbg: fix parsing file query without a line-range suffix
From
Date


On 4/26/21 12:38 PM, Eric Dumazet wrote:
>
>
> On 4/14/21 11:24 PM, Shuo Chen wrote:
>> From: Shuo Chen <shuochen@google.com>
>>
>> Query like 'file tcp_input.c line 1234 +p' was broken by
>> commit aaebe329bff0 ("dyndbg: accept 'file foo.c:func1' and 'file
>> foo.c:10-100'") because a file name without a ':' now makes the loop in
>> ddebug_parse_query() exits early before parsing the 'line 1234' part.
>> As a result, all pr_debug() in tcp_input.c will be enabled, instead of only
>> the one on line 1234. Changing 'break' to 'continue' fixes this.
>>
>> Fixes: aaebe329bff0 ("dyndbg: accept 'file foo.c:func1' and 'file foo.c:10-100'")
>> Signed-off-by: Shuo Chen <shuochen@google.com>
>> ---
>> lib/dynamic_debug.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
>> index c70d6347afa2..921d0a654243 100644
>> --- a/lib/dynamic_debug.c
>> +++ b/lib/dynamic_debug.c
>> @@ -396,7 +396,7 @@ static int ddebug_parse_query(char *words[], int nwords,
>> /* tail :$info is function or line-range */
>> fline = strchr(query->filename, ':');
>> if (!fline)
>> - break;
>> + continue;
>> *fline++ = '\0';
>> if (isalpha(*fline) || *fline == '*' || *fline == '?') {
>> /* take as function name */
>>
>
> SGTM, thanks !
>
> Reviewed-by: Eric Dumazet <edumazet@google.com>
>

Hi Greg,

I acked this previously and is an important fix.
Can you please pick it up if you haven't done so?

Thanks!

-Jason

\
 
 \ /
  Last update: 2021-04-29 23:09    [W:0.077 / U:1.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site