Re: [PATCH 5/5] mm: Change gfp_t to unsigned long
From: kernel test robot
Date: Sun Mar 22 2026 - 11:39:56 EST
Hi Brendan,
kernel test robot noticed the following build errors:
[auto build test ERROR on 8a30aeb0d1b4e4aaf7f7bae72f20f2ae75385ccb]
url: https://github.com/intel-lab-lkp/linux/commits/Brendan-Jackman/drm-managed-Use-special-gfp_t-format-specifier/20260322-145930
base: 8a30aeb0d1b4e4aaf7f7bae72f20f2ae75385ccb
patch link: https://lore.kernel.org/r/20260319-gfp64-v1-5-2c73b8d42b7f%40google.com
patch subject: [PATCH 5/5] mm: Change gfp_t to unsigned long
config: m68k-defconfig (https://download.01.org/0day-ci/archive/20260322/202603222339.TqgmWGnk-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260322/202603222339.TqgmWGnk-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603222339.TqgmWGnk-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
In file included from include/linux/module.h:23,
from lib/test_lockup.c:8:
>> lib/test_lockup.c:133:47: error: expected ';' before 'long'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~
include/linux/moduleparam.h:175:23: note: in definition of macro 'module_param_named_unsafe'
175 | param_check_##type(name, &(value)); \
| ^~~~
lib/test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:175:32: error: expected ')' before ',' token
175 | param_check_##type(name, &(value)); \
| ^
include/linux/moduleparam.h:149:9: note: in expansion of macro 'module_param_named_unsafe'
149 | module_param_named_unsafe(name, name, type, perm)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
lib/test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:176:39: error: 'param_ops_unsigned' undeclared here (not in a function); did you mean 'param_ops_uint'?
176 | module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
| ^~~~~~~~~~
include/linux/moduleparam.h:305:46: note: in definition of macro '__module_param_call'
305 | = { __param_str_##name, THIS_MODULE, ops, \
| ^~~
include/linux/moduleparam.h:176:9: note: in expansion of macro 'module_param_cb_unsafe'
176 | module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:149:9: note: in expansion of macro 'module_param_named_unsafe'
149 | module_param_named_unsafe(name, name, type, perm)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
lib/test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
lib/test_lockup.c:133:47: error: expected '}' before 'long'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~
include/linux/moduleparam.h:305:46: note: in definition of macro '__module_param_call'
305 | = { __param_str_##name, THIS_MODULE, ops, \
| ^~~
include/linux/moduleparam.h:176:9: note: in expansion of macro 'module_param_cb_unsafe'
176 | module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:149:9: note: in expansion of macro 'module_param_named_unsafe'
149 | module_param_named_unsafe(name, name, type, perm)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
lib/test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:305:11: note: to match this '{'
305 | = { __param_str_##name, THIS_MODULE, ops, \
| ^
include/linux/moduleparam.h:192:9: note: in expansion of macro '__module_param_call'
192 | __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, \
| ^~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:176:9: note: in expansion of macro 'module_param_cb_unsafe'
176 | module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:149:9: note: in expansion of macro 'module_param_named_unsafe'
149 | module_param_named_unsafe(name, name, type, perm)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
lib/test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
--
In file included from include/linux/module.h:23,
from test_lockup.c:8:
test_lockup.c:133:47: error: expected ';' before 'long'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~
include/linux/moduleparam.h:175:23: note: in definition of macro 'module_param_named_unsafe'
175 | param_check_##type(name, &(value)); \
| ^~~~
test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:175:32: error: expected ')' before ',' token
175 | param_check_##type(name, &(value)); \
| ^
include/linux/moduleparam.h:149:9: note: in expansion of macro 'module_param_named_unsafe'
149 | module_param_named_unsafe(name, name, type, perm)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
>> include/linux/moduleparam.h:176:39: error: 'param_ops_unsigned' undeclared here (not in a function); did you mean 'param_ops_uint'?
176 | module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
| ^~~~~~~~~~
include/linux/moduleparam.h:305:46: note: in definition of macro '__module_param_call'
305 | = { __param_str_##name, THIS_MODULE, ops, \
| ^~~
include/linux/moduleparam.h:176:9: note: in expansion of macro 'module_param_cb_unsafe'
176 | module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:149:9: note: in expansion of macro 'module_param_named_unsafe'
149 | module_param_named_unsafe(name, name, type, perm)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
test_lockup.c:133:47: error: expected '}' before 'long'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~
include/linux/moduleparam.h:305:46: note: in definition of macro '__module_param_call'
305 | = { __param_str_##name, THIS_MODULE, ops, \
| ^~~
include/linux/moduleparam.h:176:9: note: in expansion of macro 'module_param_cb_unsafe'
176 | module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:149:9: note: in expansion of macro 'module_param_named_unsafe'
149 | module_param_named_unsafe(name, name, type, perm)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:305:11: note: to match this '{'
305 | = { __param_str_##name, THIS_MODULE, ops, \
| ^
include/linux/moduleparam.h:192:9: note: in expansion of macro '__module_param_call'
192 | __module_param_call(MODULE_PARAM_PREFIX, name, ops, arg, perm, -1, \
| ^~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:176:9: note: in expansion of macro 'module_param_cb_unsafe'
176 | module_param_cb_unsafe(name, ¶m_ops_##type, &value, perm); \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/moduleparam.h:149:9: note: in expansion of macro 'module_param_named_unsafe'
149 | module_param_named_unsafe(name, name, type, perm)
| ^~~~~~~~~~~~~~~~~~~~~~~~~
test_lockup.c:133:1: note: in expansion of macro 'module_param_unsafe'
133 | module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
| ^~~~~~~~~~~~~~~~~~~
vim +133 lib/test_lockup.c
6
7 #include <linux/kernel.h>
> 8 #include <linux/module.h>
9 #include <linux/delay.h>
10 #include <linux/sched.h>
11 #include <linux/sched/signal.h>
12 #include <linux/sched/clock.h>
13 #include <linux/cpu.h>
14 #include <linux/nmi.h>
15 #include <linux/mm.h>
16 #include <linux/uaccess.h>
17 #include <linux/file.h>
18
19 static unsigned int time_secs;
20 module_param(time_secs, uint, 0600);
21 MODULE_PARM_DESC(time_secs, "lockup time in seconds, default 0");
22
23 static unsigned int time_nsecs;
24 module_param(time_nsecs, uint, 0600);
25 MODULE_PARM_DESC(time_nsecs, "nanoseconds part of lockup time, default 0");
26
27 static unsigned int cooldown_secs;
28 module_param(cooldown_secs, uint, 0600);
29 MODULE_PARM_DESC(cooldown_secs, "cooldown time between iterations in seconds, default 0");
30
31 static unsigned int cooldown_nsecs;
32 module_param(cooldown_nsecs, uint, 0600);
33 MODULE_PARM_DESC(cooldown_nsecs, "nanoseconds part of cooldown, default 0");
34
35 static unsigned int iterations = 1;
36 module_param(iterations, uint, 0600);
37 MODULE_PARM_DESC(iterations, "lockup iterations, default 1");
38
39 static bool all_cpus;
40 module_param(all_cpus, bool, 0400);
41 MODULE_PARM_DESC(all_cpus, "trigger lockup at all cpus at once");
42
43 static int wait_state;
44 static char *state = "R";
45 module_param(state, charp, 0400);
46 MODULE_PARM_DESC(state, "wait in 'R' running (default), 'D' uninterruptible, 'K' killable, 'S' interruptible state");
47
48 static bool use_hrtimer;
49 module_param(use_hrtimer, bool, 0400);
50 MODULE_PARM_DESC(use_hrtimer, "use high-resolution timer for sleeping");
51
52 static bool iowait;
53 module_param(iowait, bool, 0400);
54 MODULE_PARM_DESC(iowait, "account sleep time as iowait");
55
56 static bool lock_read;
57 module_param(lock_read, bool, 0400);
58 MODULE_PARM_DESC(lock_read, "lock read-write locks for read");
59
60 static bool lock_single;
61 module_param(lock_single, bool, 0400);
62 MODULE_PARM_DESC(lock_single, "acquire locks only at one cpu");
63
64 static bool reacquire_locks;
65 module_param(reacquire_locks, bool, 0400);
66 MODULE_PARM_DESC(reacquire_locks, "release and reacquire locks/irq/preempt between iterations");
67
68 static bool touch_softlockup;
69 module_param(touch_softlockup, bool, 0600);
70 MODULE_PARM_DESC(touch_softlockup, "touch soft-lockup watchdog between iterations");
71
72 static bool touch_hardlockup;
73 module_param(touch_hardlockup, bool, 0600);
74 MODULE_PARM_DESC(touch_hardlockup, "touch hard-lockup watchdog between iterations");
75
76 static bool call_cond_resched;
77 module_param(call_cond_resched, bool, 0600);
78 MODULE_PARM_DESC(call_cond_resched, "call cond_resched() between iterations");
79
80 static bool measure_lock_wait;
81 module_param(measure_lock_wait, bool, 0400);
82 MODULE_PARM_DESC(measure_lock_wait, "measure lock wait time");
83
84 static unsigned long lock_wait_threshold = ULONG_MAX;
85 module_param(lock_wait_threshold, ulong, 0400);
86 MODULE_PARM_DESC(lock_wait_threshold, "print lock wait time longer than this in nanoseconds, default off");
87
88 static bool test_disable_irq;
89 module_param_named(disable_irq, test_disable_irq, bool, 0400);
90 MODULE_PARM_DESC(disable_irq, "disable interrupts: generate hard-lockups");
91
92 static bool disable_softirq;
93 module_param(disable_softirq, bool, 0400);
94 MODULE_PARM_DESC(disable_softirq, "disable bottom-half irq handlers");
95
96 static bool disable_preempt;
97 module_param(disable_preempt, bool, 0400);
98 MODULE_PARM_DESC(disable_preempt, "disable preemption: generate soft-lockups");
99
100 static bool lock_rcu;
101 module_param(lock_rcu, bool, 0400);
102 MODULE_PARM_DESC(lock_rcu, "grab rcu_read_lock: generate rcu stalls");
103
104 static bool lock_mmap_sem;
105 module_param(lock_mmap_sem, bool, 0400);
106 MODULE_PARM_DESC(lock_mmap_sem, "lock mm->mmap_lock: block procfs interfaces");
107
108 static unsigned long lock_rwsem_ptr;
109 module_param_unsafe(lock_rwsem_ptr, ulong, 0400);
110 MODULE_PARM_DESC(lock_rwsem_ptr, "lock rw_semaphore at address");
111
112 static unsigned long lock_mutex_ptr;
113 module_param_unsafe(lock_mutex_ptr, ulong, 0400);
114 MODULE_PARM_DESC(lock_mutex_ptr, "lock mutex at address");
115
116 static unsigned long lock_spinlock_ptr;
117 module_param_unsafe(lock_spinlock_ptr, ulong, 0400);
118 MODULE_PARM_DESC(lock_spinlock_ptr, "lock spinlock at address");
119
120 static unsigned long lock_rwlock_ptr;
121 module_param_unsafe(lock_rwlock_ptr, ulong, 0400);
122 MODULE_PARM_DESC(lock_rwlock_ptr, "lock rwlock at address");
123
124 static unsigned int alloc_pages_nr;
125 module_param_unsafe(alloc_pages_nr, uint, 0600);
126 MODULE_PARM_DESC(alloc_pages_nr, "allocate and free pages under locks");
127
128 static unsigned int alloc_pages_order;
129 module_param(alloc_pages_order, uint, 0400);
130 MODULE_PARM_DESC(alloc_pages_order, "page order to allocate");
131
132 static gfp_t alloc_pages_gfp = GFP_KERNEL;
> 133 module_param_unsafe(alloc_pages_gfp, unsigned long, 0400);
134 MODULE_PARM_DESC(alloc_pages_gfp, "allocate pages with this gfp_mask, default GFP_KERNEL");
135
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