* [ammarfaizi2-block:google/android/kernel/common/android12-trusty-5.10 4728/5866] arch/arm64/kvm/fpsimd.c:129:5: error: implicit declaration of function 'sve_cond_update_zcr_vq'
@ 2022-01-26 22:26 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-01-26 22:26 UTC (permalink / raw)
To: Marc Zyngier
Cc: llvm, kbuild-all, GNU/Weeb Mailing List, linux-kernel,
Quentin Perret, Will Deacon
Hi Marc,
FYI, the error/warning still remains.
tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-trusty-5.10
head: 52cdd137fae0b001197a51646289e3cbdda921d5
commit: b0e15c8c44275afef4aacfb1560e38b974b02ac8 [4728/5866] FROMGIT: KVM: arm64: Save/restore SVE state for nVHE
config: arm64-randconfig-r022-20220124 (https://download.01.org/0day-ci/archive/20220127/202201270637.CwoQKBGC-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 2a1b7aa016c0f4b5598806205bdfbab1ea2d92c4)
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
# https://github.com/ammarfaizi2/linux-block/commit/b0e15c8c44275afef4aacfb1560e38b974b02ac8
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android12-trusty-5.10
git checkout b0e15c8c44275afef4aacfb1560e38b974b02ac8
# 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=arm64 SHELL=/bin/bash 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 >>):
>> arch/arm64/kvm/fpsimd.c:129:5: 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,
^
1 error generated.
vim +/sve_cond_update_zcr_vq +129 arch/arm64/kvm/fpsimd.c
108
109 /*
110 * Write back the vcpu FPSIMD regs if they are dirty, and invalidate the
111 * cpu FPSIMD regs so that they can't be spuriously reused if this vcpu
112 * disappears and another task or vcpu appears that recycles the same
113 * struct fpsimd_state.
114 */
115 void kvm_arch_vcpu_put_fp(struct kvm_vcpu *vcpu)
116 {
117 unsigned long flags;
118 bool host_has_sve = system_supports_sve();
119 bool guest_has_sve = vcpu_has_sve(vcpu);
120
121 local_irq_save(flags);
122
123 if (vcpu->arch.flags & KVM_ARM64_FP_ENABLED) {
124 if (guest_has_sve) {
125 __vcpu_sys_reg(vcpu, ZCR_EL1) = read_sysreg_el1(SYS_ZCR);
126
127 /* Restore the VL that was saved when bound to the CPU */
128 if (!has_vhe())
> 129 sve_cond_update_zcr_vq(vcpu_sve_max_vq(vcpu) - 1,
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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