On 2026-01-11 12:50, kernel test robot wrote:
Hi Mathieu,
kernel test robot noticed the following build warnings:
[...]> All warnings (new ones prefixed by >>):
In file included from include/asm-generic/bug.h:31,
from arch/arc/include/asm/bug.h:30,
from include/linux/bug.h:5,
from include/linux/slab.h:15,
from kernel/fork.c:16:
kernel/fork.c: In function 'check_mm':
include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of
type 'long int', but argument 4 has type 'int' [-Wformat=]
#define KERN_SOH "\001" /* ASCII Start Of Header */
^~~~~~
include/linux/printk.h:483:11: note: in definition of macro
'printk_index_wrap'
_p_func(_fmt, ##__VA_ARGS__); \
^~~~
include/linux/printk.h:534:2: note: in expansion of macro 'printk'
printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~
include/linux/kern_levels.h:9:20: note: in expansion of macro 'KERN_SOH'
#define KERN_ALERT KERN_SOH "1" /* action must be taken immediately */
^~~~~~~~
include/linux/printk.h:534:9: note: in expansion of macro 'KERN_ALERT'
printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~
kernel/fork.c:635:4: note: in expansion of macro 'pr_alert'
pr_alert("BUG: Bad rss-counter state mm:%p type:%s val:%ld Comm:%s
Pid:%d\n",
^~~~~~~~
kernel/fork.c:635:61: note: format string is defined here
pr_alert("BUG: Bad rss-counter state mm:%p type:%s val:%ld Comm:%s
Pid:%d\n",
~~^
%d
percpu_counter_tree_precise_sum() needs to return a long, not int.
Will fix for v13.
Thanks,
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com
