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Message-ID: <9ee2ad87e78a87d0d4ff0aee6fc7cf01c21f7cf7.camel@redhat.com>
Date: Mon, 18 Aug 2025 09:42:20 +0200
From: Gabriele Monaco <gmonaco@...hat.com>
To: kernel test robot <lkp@...el.com>, Nam Cao <namcao@...utronix.de>,
Palmer Dabbelt <palmer@...belt.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-kernel@...r.kernel.org, "Steven Rostedt (Google)"
<rostedt@...dmis.org>
Subject: Re: kernel/trace/rv/monitors/sleep/sleep.c:130:7: error: use of
undeclared identifier '__NR_clock_nanosleep'
On Sat, 2025-08-16 at 02:37 +0800, kernel test robot wrote:
> tree:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git ma
> ster
> head: ee94b00c1a648530333d9734200be7a45e6e00cd
> commit: f74f8bb246cf22f27752977da62079cb615f55b2 rv: Add rtapp_sleep
> monitor
> date: 5 weeks ago
> config: riscv-randconfig-001-20250816
> (https://download.01.org/0day-ci/archive/20250816/202508160204.SsFyNf
> o6-lkp@...el.com/config)
> compiler: clang version 22.0.0git
> (https://github.com/llvm/llvm-project 93d24b6b7b148c47a2fa228a4ef3152
> 4fa1d9f3f)
> reproduce (this is a W=1 build):
> (https://download.01.org/0day-ci/archive/20250816/202508160204.SsFyNf
> o6-lkp@...el.com/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@...el.com>
> > Closes:
> > https://lore.kernel.org/oe-kbuild-all/202508160204.SsFyNfo6-lkp@intel.com/
>
Palmer, this issue is what you fix in
https://lore.kernel.org/lkml/20250804194518.97620-2-palmer@dabbelt.com/
, right?
> All errors (new ones prefixed by >>):
>
> In file included from arch/riscv/include/asm/io.h:136:
> include/asm-generic/io.h:804:2: warning: performing pointer
> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
> arithmetic]
> 804 | insb(addr, buffer, count);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:104:53: note: expanded from macro
> 'insb'
> 104 | #define insb(addr, buffer, count) __insb(PCI_IOBASE +
> (addr), buffer, count)
> | ~~~~~~~~~~ ^
> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:11:
> In file included from
> ./arch/riscv/include/generated/asm/hardirq.h:1:
> In file included from include/asm-generic/hardirq.h:17:
> In file included from include/linux/irq.h:20:
> In file included from include/linux/io.h:12:
> In file included from arch/riscv/include/asm/io.h:136:
> include/asm-generic/io.h:812:2: warning: performing pointer
> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
> arithmetic]
> 812 | insw(addr, buffer, count);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:105:53: note: expanded from macro
> 'insw'
> 105 | #define insw(addr, buffer, count) __insw(PCI_IOBASE +
> (addr), buffer, count)
> | ~~~~~~~~~~ ^
> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:11:
> In file included from
> ./arch/riscv/include/generated/asm/hardirq.h:1:
> In file included from include/asm-generic/hardirq.h:17:
> In file included from include/linux/irq.h:20:
> In file included from include/linux/io.h:12:
> In file included from arch/riscv/include/asm/io.h:136:
> include/asm-generic/io.h:820:2: warning: performing pointer
> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
> arithmetic]
> 820 | insl(addr, buffer, count);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:106:53: note: expanded from macro
> 'insl'
> 106 | #define insl(addr, buffer, count) __insl(PCI_IOBASE +
> (addr), buffer, count)
> | ~~~~~~~~~~ ^
> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:11:
> In file included from
> ./arch/riscv/include/generated/asm/hardirq.h:1:
> In file included from include/asm-generic/hardirq.h:17:
> In file included from include/linux/irq.h:20:
> In file included from include/linux/io.h:12:
> In file included from arch/riscv/include/asm/io.h:136:
> include/asm-generic/io.h:829:2: warning: performing pointer
> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
> arithmetic]
> 829 | outsb(addr, buffer, count);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:118:55: note: expanded from macro
> 'outsb'
> 118 | #define outsb(addr, buffer, count) __outsb(PCI_IOBASE +
> (addr), buffer, count)
> | ~~~~~~~~~~ ^
> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:11:
> In file included from
> ./arch/riscv/include/generated/asm/hardirq.h:1:
> In file included from include/asm-generic/hardirq.h:17:
> In file included from include/linux/irq.h:20:
> In file included from include/linux/io.h:12:
> In file included from arch/riscv/include/asm/io.h:136:
> include/asm-generic/io.h:838:2: warning: performing pointer
> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
> arithmetic]
> 838 | outsw(addr, buffer, count);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:119:55: note: expanded from macro
> 'outsw'
> 119 | #define outsw(addr, buffer, count) __outsw(PCI_IOBASE +
> (addr), buffer, count)
> | ~~~~~~~~~~ ^
> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:11:
> In file included from
> ./arch/riscv/include/generated/asm/hardirq.h:1:
> In file included from include/asm-generic/hardirq.h:17:
> In file included from include/linux/irq.h:20:
> In file included from include/linux/io.h:12:
> In file included from arch/riscv/include/asm/io.h:136:
> include/asm-generic/io.h:847:2: warning: performing pointer
> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
> arithmetic]
> 847 | outsl(addr, buffer, count);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~
> arch/riscv/include/asm/io.h:120:55: note: expanded from macro
> 'outsl'
> 120 | #define outsl(addr, buffer, count) __outsl(PCI_IOBASE +
> (addr), buffer, count)
> | ~~~~~~~~~~ ^
> In file included from kernel/trace/rv/monitors/sleep/sleep.c:2:
> In file included from include/linux/ftrace.h:10:
> In file included from include/linux/trace_recursion.h:5:
> In file included from include/linux/interrupt.h:11:
> In file included from include/linux/hardirq.h:11:
> In file included from
> ./arch/riscv/include/generated/asm/hardirq.h:1:
> In file included from include/asm-generic/hardirq.h:17:
> In file included from include/linux/irq.h:20:
> In file included from include/linux/io.h:12:
> In file included from arch/riscv/include/asm/io.h:136:
> include/asm-generic/io.h:1175:55: warning: performing pointer
> arithmetic on a null pointer has undefined behavior [-Wnull-pointer-
> arithmetic]
> 1175 | return (port > MMIO_UPPER_LIMIT) ? NULL :
> PCI_IOBASE + port;
> |
> ~~~~~~~~~~ ^
> > > kernel/trace/rv/monitors/sleep/sleep.c:130:7: error: use of
> > > undeclared identifier '__NR_clock_nanosleep'
> 130 | case __NR_clock_nanosleep:
> | ^~~~~~~~~~~~~~~~~~~~
> > > kernel/trace/rv/monitors/sleep/sleep.c:141:7: error: use of
> > > undeclared identifier '__NR_futex'
> 141 | case __NR_futex:
> | ^~~~~~~~~~
> 7 warnings and 2 errors generated.
>
>
> vim +/__NR_clock_nanosleep +130
> kernel/trace/rv/monitors/sleep/sleep.c
>
> 120
> 121 static void handle_sys_enter(void *data, struct pt_regs
> *regs, long id)
> 122 {
> 123 struct ltl_monitor *mon;
> 124 unsigned long args[6];
> 125 int op, cmd;
> 126
> 127 mon = ltl_get_monitor(current);
> 128
> 129 switch (id) {
> > 130 case __NR_clock_nanosleep:
> 131 #ifdef __NR_clock_nanosleep_time64
> 132 case __NR_clock_nanosleep_time64:
> 133 #endif
> 134 syscall_get_arguments(current, regs, args);
> 135 ltl_atom_set(mon,
> LTL_NANOSLEEP_CLOCK_MONOTONIC, args[0] == CLOCK_MONOTONIC);
> 136 ltl_atom_set(mon, LTL_NANOSLEEP_CLOCK_TAI,
> args[0] == CLOCK_TAI);
> 137 ltl_atom_set(mon,
> LTL_NANOSLEEP_TIMER_ABSTIME, args[1] == TIMER_ABSTIME);
> 138 ltl_atom_update(current,
> LTL_CLOCK_NANOSLEEP, true);
> 139 break;
> 140
> > 141 case __NR_futex:
> 142 #ifdef __NR_futex_time64
> 143 case __NR_futex_time64:
> 144 #endif
> 145 syscall_get_arguments(current, regs, args);
> 146 op = args[1];
> 147 cmd = op & FUTEX_CMD_MASK;
> 148
> 149 switch (cmd) {
> 150 case FUTEX_LOCK_PI:
> 151 case FUTEX_LOCK_PI2:
> 152 ltl_atom_update(current,
> LTL_FUTEX_LOCK_PI, true);
> 153 break;
> 154 case FUTEX_WAIT:
> 155 case FUTEX_WAIT_BITSET:
> 156 case FUTEX_WAIT_REQUEUE_PI:
> 157 ltl_atom_update(current,
> LTL_FUTEX_WAIT, true);
> 158 break;
> 159 }
> 160 break;
> 161 }
> 162 }
> 163
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