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Mon, 8 Sep 2025 12:02:30 +1000 (AEST) Date: Mon, 8 Sep 2025 12:02:29 +1000 From: Stephen Rothwell To: Christian Brauner Cc: Simon Schuster , Linux Kernel Mailing List , Linux Next Mailing List Subject: Re: linux-next: build failure after merge of the vfs-brauner tree Message-ID: <20250908120229.7a4e6db9@canb.auug.org.au> In-Reply-To: <20250904113334.18822d43@canb.auug.org.au> References: <20250904113334.18822d43@canb.auug.org.au> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/K/=aa6=3m2lVOMfvLEWm3_g"; protocol="application/pgp-signature"; micalg=pgp-sha256 --Sig_/K/=aa6=3m2lVOMfvLEWm3_g Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi all, On Thu, 4 Sep 2025 11:33:34 +1000 Stephen Rothwell w= rote: >=20 > After merging the vfs-brauner tree, today's linux-next build (x86_64 > allmodconfig) failed like this: >=20 > 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_new= task); > | ^~~~~~~~~~~~~~~= ~~~~ > | | > | void (*)(void *= , struct task_struct *, long unsigned int) > include/rv/instrumentation.h:18:48: note: in definition of macro 'rv_atta= ch_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 *, struc= t task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long lo= ng unsigned int)'} but argument is of type 'void (*)(void *, struct task_st= ruct *, 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_TR= ACE_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_tr= ace_task_newtask' from incompatible pointer type [-Wincompatible-pointer-ty= pes] > 75 | rv_attach_trace_probe(name, task_newtask, handle_task_new= task); > | ^~~~~~~~~~~~~~~= ~~~~ > | | > | void (*)(void *= , struct task_struct *, long unsigned int) > include/linux/once_lite.h:28:41: note: in definition of macro 'DO_ONCE_LI= TE_IF' > 28 | bool __ret_do_once =3D !!(condition); = \ > | ^~~~~~~~~ > include/rv/instrumentation.h:19:17: note: in expansion of macro 'WARN_ONC= E' > 19 | WARN_ONCE(register_trace_##tp(rv_handler, NULL), = \ > | ^~~~~~~~~ > include/rv/ltl_monitor.h:75:9: note: in expansion of macro 'rv_attach_tra= ce_probe' > 75 | rv_attach_trace_probe(name, task_newtask, handle_task_new= task); > | ^~~~~~~~~~~~~~~~~~~~~ > include/linux/tracepoint.h:241:38: note: expected 'void (*)(void *, struc= t task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long lo= ng unsigned int)'} but argument is of type 'void (*)(void *, struct task_st= ruct *, long unsigned int)' > 241 | register_trace_##name(void (*probe)(data_proto), void *da= ta) \ > | ~~~~~~~^~~~~~~~~~~~~~~~~~ > 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_TR= ACE_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_new= task); > | ^~~~~~~~~~~~~~~= ~~~~ > | | > | void (*)(void *= , struct task_struct *, long unsigned int) > include/rv/instrumentation.h:28:39: note: in definition of macro 'rv_deta= ch_trace_probe' > 28 | unregister_trace_##tp(rv_handler, NULL); = \ > | ^~~~~~~~~~ > include/linux/tracepoint.h:254:40: note: expected 'void (*)(void *, struc= t task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long lo= ng unsigned int)'} but argument is of type 'void (*)(void *, struct task_st= ruct *, 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_TR= ACE_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_new= task); > | ^~~~~~~~~~~~~~~= ~~~~ > | | > | void (*)(void *= , struct task_struct *, long unsigned int) > include/rv/instrumentation.h:18:48: note: in definition of macro 'rv_atta= ch_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 *, struc= t task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long lo= ng unsigned int)'} but argument is of type 'void (*)(void *, struct task_st= ruct *, 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_TR= ACE_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_tr= ace_task_newtask' from incompatible pointer type [-Wincompatible-pointer-ty= pes] > 75 | rv_attach_trace_probe(name, task_newtask, handle_task_new= task); > | ^~~~~~~~~~~~~~~= ~~~~ > | | > | void (*)(void *= , struct task_struct *, long unsigned int) > include/linux/once_lite.h:28:41: note: in definition of macro 'DO_ONCE_LI= TE_IF' > 28 | bool __ret_do_once =3D !!(condition); = \ > | ^~~~~~~~~ > include/rv/instrumentation.h:19:17: note: in expansion of macro 'WARN_ONC= E' > 19 | WARN_ONCE(register_trace_##tp(rv_handler, NULL), = \ > | ^~~~~~~~~ > include/rv/ltl_monitor.h:75:9: note: in expansion of macro 'rv_attach_tra= ce_probe' > 75 | rv_attach_trace_probe(name, task_newtask, handle_task_new= task); > | ^~~~~~~~~~~~~~~~~~~~~ > include/linux/tracepoint.h:241:38: note: expected 'void (*)(void *, struc= t task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long lo= ng unsigned int)'} but argument is of type 'void (*)(void *, struct task_st= ruct *, long unsigned int)' > 241 | register_trace_##name(void (*probe)(data_proto), void *da= ta) \ > | ~~~~~~~^~~~~~~~~~~~~~~~~~ > 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_TR= ACE_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_new= task); > | ^~~~~~~~~~~~~~~= ~~~~ > | | > | void (*)(void *= , struct task_struct *, long unsigned int) > include/rv/instrumentation.h:28:39: note: in definition of macro 'rv_deta= ch_trace_probe' > 28 | unregister_trace_##tp(rv_handler, NULL); = \ > | ^~~~~~~~~~ > include/linux/tracepoint.h:254:40: note: expected 'void (*)(void *, struc= t task_struct *, u64)' {aka 'void (*)(void *, struct task_struct *, long lo= ng unsigned int)'} but argument is of type 'void (*)(void *, struct task_st= ruct *, 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_TR= ACE_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, > | ^~~~~~~~~~~ >=20 > Presumably caused by commit >=20 > edd3cb05c00a ("copy_process: pass clone_flags as u64 across calltree") >=20 > I have used the vfs-brauner tree from next-20250829 for today. I am still seeing this failure. --=20 Cheers, Stephen Rothwell --Sig_/K/=aa6=3m2lVOMfvLEWm3_g Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAmi+OTUACgkQAVBC80lX 0Gy7QAf+M65OyJeZnEhUIwtLdbH97ksyY8OrMOHNRfkvexERWY0Kk6IqI+ftaSoh en4Y+0eQnzLj7faoMXifG371eMKEmhg19T6/baF4AN1evNyYpNx2VtNPQ4yF468N 00mJUEIS7JwlWwPRitC2Gp4zc0oF2swqHJKF8pD15AspHFLJXtvvHvUiMSzi/hhQ Aur3r0fRl8rxl3yKhU+AXhWbhoFbs+MwjaTh90FH0mjMKFcOF2bPdjumDR0UNUh1 k+2spyDvSwmVN/qGEMP1X/Y7BwpbA4eHG2XLv2xHLzViuVxfABBPf13fUvqyozK9 VNT4wP8cpopkwNJM3alceml/fXStcg== =sDxX -----END PGP SIGNATURE----- --Sig_/K/=aa6=3m2lVOMfvLEWm3_g--