Jianxiong Pan e8da821ba8 printk: fix print_time bug when run dmesg [1/1] ...

PD#SWPL-4900

Problem:
printk_prefix() passes NULL buf to print_time() to get the length of
the time prefix; when printk times are enable, the current code just
return "snprint(NULL, 0, "[%5lu.000000]", (unsigned long)ts)"
but in the SMP case, we add cpu core id at the end of time prefix, the
format is "[%5lu, %06lu@%d]", this gives a wrong size(shorter).

this will make buf get out of boundary, when run dmesg.

Solution:
replace [%5lu.000000] with [%5lu.000000@0]

Verify:
g12a-u200

Change-Id: Ic74b9f466b5af5aac7e6569a1afc7a46d9594050
Signed-off-by: Jianxiong Pan <jianxiong.pan@amlogic.com>

2019-03-13 20:22:40 +08:00

..

braille.c

braille-console: Fix value returned by _braille_console_setup

2018-03-22 09:17:45 +01:00

braille.h

braille-console: Fix value returned by _braille_console_setup

2018-03-22 09:17:45 +01:00

console_cmdline.h

console: Fix console name size mismatch

2015-03-07 03:39:55 +01:00

internal.h

Revert "printk: create pr_<level> functions"

2016-08-09 10:48:18 -07:00

Makefile

printk/nmi: generic solution for safe printk in NMI

2016-05-20 17:58:30 -07:00

nmi.c

printk: fix possible reuse of va_list variable

2018-07-03 11:23:10 +02:00

printk.c

printk: fix print_time bug when run dmesg [1/1]

2019-03-13 20:22:40 +08:00