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Subjectarch/riscv/kvm/vcpu_timer.c:302:23: warning: variable 'csr' set but not used
arch/riscv/include/asm/kvm_vcpu_timer.h
arch/riscv/include/uapi/asm/kvm.h
arch/riscv/kvm/vcpu.c
arch/riscv/kvm/vcpu_timer.c
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 4c2d0b039c5cc0112206a5b22431b577cb1c57ad
commit: 8f5cb44b1bae8520c0705ce348b30ffb1fdda43a RISC-V: KVM: Support sstc extension
date: 7 days ago
config: riscv-randconfig-r023-20220819 (https://download.01.org/0day-ci/archive/20220819/202208191955.gp7xM6nG-lkp@intel.com/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 0ac597f3cacf60479ffd36b03766fa7462dabd78)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8f5cb44b1bae8520c0705ce348b30ffb1fdda43a
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 8f5cb44b1bae8520c0705ce348b30ffb1fdda43a
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/kvm/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> arch/riscv/kvm/vcpu_timer.c:302:23: warning: variable 'csr' set but not used [-Wunused-but-set-variable]
struct kvm_vcpu_csr *csr;
^
arch/riscv/kvm/vcpu_timer.c:327:23: warning: variable 'csr' set but not used [-Wunused-but-set-variable]
struct kvm_vcpu_csr *csr;
^
2 warnings generated.


vim +/csr +302 arch/riscv/kvm/vcpu_timer.c

299
300 void kvm_riscv_vcpu_timer_restore(struct kvm_vcpu *vcpu)
301 {
> 302 struct kvm_vcpu_csr *csr;
303 struct kvm_vcpu_timer *t = &vcpu->arch.timer;
304
305 kvm_riscv_vcpu_update_timedelta(vcpu);
306
307 if (!t->sstc_enabled)
308 return;
309
310 csr = &vcpu->arch.guest_csr;
311 #if defined(CONFIG_32BIT)
312 csr_write(CSR_VSTIMECMP, (u32)t->next_cycles);
313 csr_write(CSR_VSTIMECMPH, (u32)(t->next_cycles >> 32));
314 #else
315 csr_write(CSR_VSTIMECMP, t->next_cycles);
316 #endif
317
318 /* timer should be enabled for the remaining operations */
319 if (unlikely(!t->init_done))
320 return;
321
322 kvm_riscv_vcpu_timer_unblocking(vcpu);
323 }
324

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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