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Message-ID: <20250904113334.18822d43@canb.auug.org.au>
Date: Thu, 4 Sep 2025 11:33:34 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Christian Brauner <brauner@...nel.org>
Cc: Simon Schuster <schuster.simon@...mens-energy.com>, Linux Kernel Mailing
List <linux-kernel@...r.kernel.org>, Linux Next Mailing List
<linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the vfs-brauner tree
Hi all,
After merging the vfs-brauner tree, today's linux-next build (x86_64
allmodconfig) failed like this:
In file included from include/rv/ltl_monitor.h:11,
from kernel/trace/rv/monitors/sleep/sleep.c:23:
include/rv/ltl_monitor.h: In function 'ltl_monitor_init':
include/rv/ltl_monitor.h:75:51: error: passing argument 1 of 'check_trace_callback_type_task_newtask' from incompatible pointer type [-Wincompatible-pointer-types]
75 | rv_attach_trace_probe(name, task_newtask, handle_task_newtask);
| ^~~~~~~~~~~~~~~~~~~
| |
| void (*)(void *, struct task_struct *, long unsigned int)
include/rv/instrumentation.h:18:48: note: in definition of macro 'rv_attach_trace_probe'
18 | check_trace_callback_type_##tp(rv_handler); \
| ^~~~~~~~~~
In file included from kernel/trace/rv/monitors/sleep/sleep.c:3:
include/linux/tracepoint.h:260:49: note: expected 'void (*)(void *, struct task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long long unsigned int)'} but argument is of type 'void (*)(void *, struct task_struct *, long unsigned int)'
260 | check_trace_callback_type_##name(void (*cb)(data_proto)) \
| ~~~~~~~^~~~~~~~~~~~~~~
include/linux/tracepoint.h:270:9: note: in expansion of macro '__DECLARE_TRACE_COMMON'
270 | __DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:481:9: note: in expansion of macro '__DECLARE_TRACE'
481 | __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
| ^~~~~~~~~~~~~~~
include/linux/tracepoint.h:619:9: note: in expansion of macro 'DECLARE_TRACE_EVENT'
619 | DECLARE_TRACE_EVENT(name, PARAMS(proto), PARAMS(args))
| ^~~~~~~~~~~~~~~~~~~
include/trace/events/task.h:9:1: note: in expansion of macro 'TRACE_EVENT'
9 | TRACE_EVENT(task_newtask,
| ^~~~~~~~~~~
In file included from include/asm-generic/bug.h:7,
from arch/x86/include/asm/bug.h:103,
from arch/x86/include/asm/alternative.h:9,
from arch/x86/include/asm/barrier.h:5,
from include/asm-generic/bitops/generic-non-atomic.h:7,
from include/linux/bitops.h:28,
from include/linux/kernel.h:23,
from include/linux/interrupt.h:6,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/rv/monitors/sleep/sleep.c:2:
include/rv/ltl_monitor.h:75:51: error: passing argument 1 of 'register_trace_task_newtask' from incompatible pointer type [-Wincompatible-pointer-types]
75 | rv_attach_trace_probe(name, task_newtask, handle_task_newtask);
| ^~~~~~~~~~~~~~~~~~~
| |
| void (*)(void *, struct task_struct *, long unsigned int)
include/linux/once_lite.h:28:41: note: in definition of macro 'DO_ONCE_LITE_IF'
28 | bool __ret_do_once = !!(condition); \
| ^~~~~~~~~
include/rv/instrumentation.h:19:17: note: in expansion of macro 'WARN_ONCE'
19 | WARN_ONCE(register_trace_##tp(rv_handler, NULL), \
| ^~~~~~~~~
include/rv/ltl_monitor.h:75:9: note: in expansion of macro 'rv_attach_trace_probe'
75 | rv_attach_trace_probe(name, task_newtask, handle_task_newtask);
| ^~~~~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:241:38: note: expected 'void (*)(void *, struct task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long long unsigned int)'} but argument is of type 'void (*)(void *, struct task_struct *, long unsigned int)'
241 | register_trace_##name(void (*probe)(data_proto), void *data) \
| ~~~~~~~^~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:270:9: note: in expansion of macro '__DECLARE_TRACE_COMMON'
270 | __DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:481:9: note: in expansion of macro '__DECLARE_TRACE'
481 | __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
| ^~~~~~~~~~~~~~~
include/linux/tracepoint.h:619:9: note: in expansion of macro 'DECLARE_TRACE_EVENT'
619 | DECLARE_TRACE_EVENT(name, PARAMS(proto), PARAMS(args))
| ^~~~~~~~~~~~~~~~~~~
include/trace/events/task.h:9:1: note: in expansion of macro 'TRACE_EVENT'
9 | TRACE_EVENT(task_newtask,
| ^~~~~~~~~~~
include/rv/ltl_monitor.h: In function 'ltl_monitor_destroy':
include/rv/ltl_monitor.h:92:51: error: passing argument 1 of 'unregister_trace_task_newtask' from incompatible pointer type [-Wincompatible-pointer-types]
92 | rv_detach_trace_probe(name, task_newtask, handle_task_newtask);
| ^~~~~~~~~~~~~~~~~~~
| |
| void (*)(void *, struct task_struct *, long unsigned int)
include/rv/instrumentation.h:28:39: note: in definition of macro 'rv_detach_trace_probe'
28 | unregister_trace_##tp(rv_handler, NULL); \
| ^~~~~~~~~~
include/linux/tracepoint.h:254:40: note: expected 'void (*)(void *, struct task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long long unsigned int)'} but argument is of type 'void (*)(void *, struct task_struct *, long unsigned int)'
254 | unregister_trace_##name(void (*probe)(data_proto), void *data) \
| ~~~~~~~^~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:270:9: note: in expansion of macro '__DECLARE_TRACE_COMMON'
270 | __DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:481:9: note: in expansion of macro '__DECLARE_TRACE'
481 | __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
| ^~~~~~~~~~~~~~~
include/linux/tracepoint.h:619:9: note: in expansion of macro 'DECLARE_TRACE_EVENT'
619 | DECLARE_TRACE_EVENT(name, PARAMS(proto), PARAMS(args))
| ^~~~~~~~~~~~~~~~~~~
include/trace/events/task.h:9:1: note: in expansion of macro 'TRACE_EVENT'
9 | TRACE_EVENT(task_newtask,
| ^~~~~~~~~~~
In file included from include/rv/ltl_monitor.h:11,
from kernel/trace/rv/monitors/pagefault/pagefault.c:19:
include/rv/ltl_monitor.h: In function 'ltl_monitor_init':
include/rv/ltl_monitor.h:75:51: error: passing argument 1 of 'check_trace_callback_type_task_newtask' from incompatible pointer type [-Wincompatible-pointer-types]
75 | rv_attach_trace_probe(name, task_newtask, handle_task_newtask);
| ^~~~~~~~~~~~~~~~~~~
| |
| void (*)(void *, struct task_struct *, long unsigned int)
include/rv/instrumentation.h:18:48: note: in definition of macro 'rv_attach_trace_probe'
18 | check_trace_callback_type_##tp(rv_handler); \
| ^~~~~~~~~~
In file included from kernel/trace/rv/monitors/pagefault/pagefault.c:9:
include/linux/tracepoint.h:260:49: note: expected 'void (*)(void *, struct task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long long unsigned int)'} but argument is of type 'void (*)(void *, struct task_struct *, long unsigned int)'
260 | check_trace_callback_type_##name(void (*cb)(data_proto)) \
| ~~~~~~~^~~~~~~~~~~~~~~
include/linux/tracepoint.h:270:9: note: in expansion of macro '__DECLARE_TRACE_COMMON'
270 | __DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:481:9: note: in expansion of macro '__DECLARE_TRACE'
481 | __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
| ^~~~~~~~~~~~~~~
include/linux/tracepoint.h:619:9: note: in expansion of macro 'DECLARE_TRACE_EVENT'
619 | DECLARE_TRACE_EVENT(name, PARAMS(proto), PARAMS(args))
| ^~~~~~~~~~~~~~~~~~~
include/trace/events/task.h:9:1: note: in expansion of macro 'TRACE_EVENT'
9 | TRACE_EVENT(task_newtask,
| ^~~~~~~~~~~
In file included from include/asm-generic/bug.h:7,
from arch/x86/include/asm/bug.h:103,
from arch/x86/include/asm/alternative.h:9,
from arch/x86/include/asm/barrier.h:5,
from include/asm-generic/bitops/generic-non-atomic.h:7,
from include/linux/bitops.h:28,
from include/linux/kernel.h:23,
from include/linux/interrupt.h:6,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/rv/monitors/pagefault/pagefault.c:2:
include/rv/ltl_monitor.h:75:51: error: passing argument 1 of 'register_trace_task_newtask' from incompatible pointer type [-Wincompatible-pointer-types]
75 | rv_attach_trace_probe(name, task_newtask, handle_task_newtask);
| ^~~~~~~~~~~~~~~~~~~
| |
| void (*)(void *, struct task_struct *, long unsigned int)
include/linux/once_lite.h:28:41: note: in definition of macro 'DO_ONCE_LITE_IF'
28 | bool __ret_do_once = !!(condition); \
| ^~~~~~~~~
include/rv/instrumentation.h:19:17: note: in expansion of macro 'WARN_ONCE'
19 | WARN_ONCE(register_trace_##tp(rv_handler, NULL), \
| ^~~~~~~~~
include/rv/ltl_monitor.h:75:9: note: in expansion of macro 'rv_attach_trace_probe'
75 | rv_attach_trace_probe(name, task_newtask, handle_task_newtask);
| ^~~~~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:241:38: note: expected 'void (*)(void *, struct task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long long unsigned int)'} but argument is of type 'void (*)(void *, struct task_struct *, long unsigned int)'
241 | register_trace_##name(void (*probe)(data_proto), void *data) \
| ~~~~~~~^~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:270:9: note: in expansion of macro '__DECLARE_TRACE_COMMON'
270 | __DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:481:9: note: in expansion of macro '__DECLARE_TRACE'
481 | __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
| ^~~~~~~~~~~~~~~
include/linux/tracepoint.h:619:9: note: in expansion of macro 'DECLARE_TRACE_EVENT'
619 | DECLARE_TRACE_EVENT(name, PARAMS(proto), PARAMS(args))
| ^~~~~~~~~~~~~~~~~~~
include/trace/events/task.h:9:1: note: in expansion of macro 'TRACE_EVENT'
9 | TRACE_EVENT(task_newtask,
| ^~~~~~~~~~~
include/rv/ltl_monitor.h: In function 'ltl_monitor_destroy':
include/rv/ltl_monitor.h:92:51: error: passing argument 1 of 'unregister_trace_task_newtask' from incompatible pointer type [-Wincompatible-pointer-types]
92 | rv_detach_trace_probe(name, task_newtask, handle_task_newtask);
| ^~~~~~~~~~~~~~~~~~~
| |
| void (*)(void *, struct task_struct *, long unsigned int)
include/rv/instrumentation.h:28:39: note: in definition of macro 'rv_detach_trace_probe'
28 | unregister_trace_##tp(rv_handler, NULL); \
| ^~~~~~~~~~
include/linux/tracepoint.h:254:40: note: expected 'void (*)(void *, struct task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long long unsigned int)'} but argument is of type 'void (*)(void *, struct task_struct *, long unsigned int)'
254 | unregister_trace_##name(void (*probe)(data_proto), void *data) \
| ~~~~~~~^~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:270:9: note: in expansion of macro '__DECLARE_TRACE_COMMON'
270 | __DECLARE_TRACE_COMMON(name, PARAMS(proto), PARAMS(args), PARAMS(data_proto)) \
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/tracepoint.h:481:9: note: in expansion of macro '__DECLARE_TRACE'
481 | __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \
| ^~~~~~~~~~~~~~~
include/linux/tracepoint.h:619:9: note: in expansion of macro 'DECLARE_TRACE_EVENT'
619 | DECLARE_TRACE_EVENT(name, PARAMS(proto), PARAMS(args))
| ^~~~~~~~~~~~~~~~~~~
include/trace/events/task.h:9:1: note: in expansion of macro 'TRACE_EVENT'
9 | TRACE_EVENT(task_newtask,
| ^~~~~~~~~~~
Presumably caused by commit
edd3cb05c00a ("copy_process: pass clone_flags as u64 across calltree")
I have used the vfs-brauner tree from next-20250829 for today.
--
Cheers,
Stephen Rothwell
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