From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: [android-common:android12-5.10 6729/10755] arch/arm64/kvm/hyp/include/hyp/switch.h:216:2: error: implicit declaration of function 'sve_cond_update_zcr_vq'
Date: Wed, 18 Aug 2021 09:02:33 +0800 [thread overview]
Message-ID: <202108180929.av8DiDBb-lkp@intel.com> (raw)
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Hi Marc,
FYI, the error/warning still remains.
tree: https://android.googlesource.com/kernel/common android12-5.10
head: d0331b15e6abcacfccdc17a384f2de69c89b25fc
commit: 1105b4d1cef4bc19ad20129a716194268c937eaf [6729/10755] BACKPORT: FROMGIT: KVM: arm64: Rework SVE host-save/guest-restore
config: arm64-randconfig-r022-20210816 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2c6448cdc2f68f8c28fd0bd9404182b81306e6e6)
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
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
git remote add android-common https://android.googlesource.com/kernel/common
git fetch --no-tags android-common android12-5.10
git checkout 1105b4d1cef4bc19ad20129a716194268c937eaf
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from arch/arm64/kvm/hyp/nvhe/switch.c:8:
>> arch/arm64/kvm/hyp/include/hyp/switch.h:216:2: error: implicit declaration of function 'sve_cond_update_zcr_vq' [-Werror,-Wimplicit-function-declaration]
sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2);
^
arch/arm64/kvm/hyp/nvhe/switch.c:282:17: warning: no previous prototype for function 'kvm_unexpected_el2_exception' [-Wmissing-prototypes]
asmlinkage void kvm_unexpected_el2_exception(void)
^
arch/arm64/kvm/hyp/nvhe/switch.c:282:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage void kvm_unexpected_el2_exception(void)
^
static
1 warning and 1 error generated.
--
In file included from arch/arm64/kvm/hyp/nvhe/hyp-main.c:7:
>> arch/arm64/kvm/hyp/include/hyp/switch.h:216:2: error: implicit declaration of function 'sve_cond_update_zcr_vq' [-Werror,-Wimplicit-function-declaration]
sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2);
^
arch/arm64/kvm/hyp/nvhe/hyp-main.c:233:6: warning: no previous prototype for function 'handle_trap' [-Wmissing-prototypes]
void handle_trap(struct kvm_cpu_context *host_ctxt)
^
arch/arm64/kvm/hyp/nvhe/hyp-main.c:233:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void handle_trap(struct kvm_cpu_context *host_ctxt)
^
static
1 warning and 1 error generated.
--
In file included from arch/arm64/kvm/hyp/nvhe/mem_protect.c:15:
>> arch/arm64/kvm/hyp/include/hyp/switch.h:216:2: error: implicit declaration of function 'sve_cond_update_zcr_vq' [-Werror,-Wimplicit-function-declaration]
sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2);
^
1 error generated.
--
In file included from arch/arm64/kvm/hyp/vhe/switch.c:8:
>> arch/arm64/kvm/hyp/include/hyp/switch.h:216:2: error: implicit declaration of function 'sve_cond_update_zcr_vq' [-Werror,-Wimplicit-function-declaration]
sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2);
^
arch/arm64/kvm/hyp/vhe/switch.c:227:17: warning: no previous prototype for function 'kvm_unexpected_el2_exception' [-Wmissing-prototypes]
asmlinkage void kvm_unexpected_el2_exception(void)
^
arch/arm64/kvm/hyp/vhe/switch.c:227:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
asmlinkage void kvm_unexpected_el2_exception(void)
^
static
1 warning and 1 error generated.
vim +/sve_cond_update_zcr_vq +216 arch/arm64/kvm/hyp/include/hyp/switch.h
213
214 static inline void __hyp_sve_restore_guest(struct kvm_vcpu *vcpu)
215 {
> 216 sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1, SYS_ZCR_EL2);
217 __sve_restore_state(vcpu_sve_pffr(vcpu),
218 &vcpu->arch.ctxt.fp_regs.fpsr);
219 write_sysreg_el1(__vcpu_sys_reg(vcpu, ZCR_EL1), SYS_ZCR);
220 }
221
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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