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Date: Sat, 19 Mar 2022 12:09:50 +0800
From: kernel test robot <lkp@...el.com>
To: Nick Desaulniers <ndesaulniers@...gle.com>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org, Peter Zijlstra <peterz@...radead.org>
Subject: [peterz-queue:locking/core 17/19] arch/x86/kvm/x86.h:29:30: error:
too many arguments to function call, expected 0, have 1
tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core
head: 200a79c670d24d4d9a75a6a9cbfd14af2f5d0ad9
commit: 5c9f3806a4400c2957abeea9419547f856457a20 [17/19] lockdep: Fix -Wunused-parameter for _THIS_IP_
config: x86_64-randconfig-a014 (https://download.01.org/0day-ci/archive/20220319/202203191213.tC0sjaY7-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6e70e4056dff962ec634c5bd4f2f4105a0bef71)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=5c9f3806a4400c2957abeea9419547f856457a20
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue locking/core
git checkout 5c9f3806a4400c2957abeea9419547f856457a20
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from arch/x86/kvm/x86.c:22:
In file included from arch/x86/kvm/mmu.h:7:
In file included from arch/x86/kvm/cpuid.h:5:
>> arch/x86/kvm/x86.h:29:30: error: too many arguments to function call, expected 0, have 1
lockdep_hardirqs_on_prepare(CALLER_ADDR0);
~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~
include/linux/ftrace.h:879:22: note: expanded from macro 'CALLER_ADDR0'
#define CALLER_ADDR0 ((unsigned long)ftrace_return_address0)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/irqflags.h:23:15: note: 'lockdep_hardirqs_on_prepare' declared here
extern void lockdep_hardirqs_on_prepare(void);
^
In file included from arch/x86/kvm/x86.c:41:
include/linux/mman.h:158:9: warning: division by zero is undefined [-Wdivision-by-zero]
_calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) |
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/mman.h:136:21: note: expanded from macro '_calc_vm_trans'
: ((x) & (bit1)) / ((bit1) / (bit2))))
^ ~~~~~~~~~~~~~~~~~
1 warning and 1 error generated.
--
In file included from arch/x86/kvm/emulate.c:28:
>> arch/x86/kvm/x86.h:29:30: error: too many arguments to function call, expected 0, have 1
lockdep_hardirqs_on_prepare(CALLER_ADDR0);
~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~
include/linux/ftrace.h:879:22: note: expanded from macro 'CALLER_ADDR0'
#define CALLER_ADDR0 ((unsigned long)ftrace_return_address0)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/irqflags.h:23:15: note: 'lockdep_hardirqs_on_prepare' declared here
extern void lockdep_hardirqs_on_prepare(void);
^
1 error generated.
vim +29 arch/x86/kvm/x86.h
65297341d8e15b Uros Bizjak 2021-08-09 12
bc908e091b3264 Sean Christopherson 2021-05-04 13 static __always_inline void kvm_guest_enter_irqoff(void)
bc908e091b3264 Sean Christopherson 2021-05-04 14 {
bc908e091b3264 Sean Christopherson 2021-05-04 15 /*
bc908e091b3264 Sean Christopherson 2021-05-04 16 * VMENTER enables interrupts (host state), but the kernel state is
bc908e091b3264 Sean Christopherson 2021-05-04 17 * interrupts disabled when this is invoked. Also tell RCU about
bc908e091b3264 Sean Christopherson 2021-05-04 18 * it. This is the same logic as for exit_to_user_mode().
bc908e091b3264 Sean Christopherson 2021-05-04 19 *
bc908e091b3264 Sean Christopherson 2021-05-04 20 * This ensures that e.g. latency analysis on the host observes
bc908e091b3264 Sean Christopherson 2021-05-04 21 * guest mode as interrupt enabled.
bc908e091b3264 Sean Christopherson 2021-05-04 22 *
bc908e091b3264 Sean Christopherson 2021-05-04 23 * guest_enter_irqoff() informs context tracking about the
bc908e091b3264 Sean Christopherson 2021-05-04 24 * transition to guest mode and if enabled adjusts RCU state
bc908e091b3264 Sean Christopherson 2021-05-04 25 * accordingly.
bc908e091b3264 Sean Christopherson 2021-05-04 26 */
bc908e091b3264 Sean Christopherson 2021-05-04 27 instrumentation_begin();
bc908e091b3264 Sean Christopherson 2021-05-04 28 trace_hardirqs_on_prepare();
bc908e091b3264 Sean Christopherson 2021-05-04 @29 lockdep_hardirqs_on_prepare(CALLER_ADDR0);
bc908e091b3264 Sean Christopherson 2021-05-04 30 instrumentation_end();
bc908e091b3264 Sean Christopherson 2021-05-04 31
bc908e091b3264 Sean Christopherson 2021-05-04 32 guest_enter_irqoff();
bc908e091b3264 Sean Christopherson 2021-05-04 33 lockdep_hardirqs_on(CALLER_ADDR0);
bc908e091b3264 Sean Christopherson 2021-05-04 34 }
bc908e091b3264 Sean Christopherson 2021-05-04 35
:::::: The code at line 29 was first introduced by commit
:::::: bc908e091b3264672889162733020048901021fb KVM: x86: Consolidate guest enter/exit logic to common helpers
:::::: TO: Sean Christopherson <seanjc@...gle.com>
:::::: CC: Thomas Gleixner <tglx@...utronix.de>
---
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