tree:   https://github.com/intel-lab-lkp/linux/commits/Oleksandr-Tyshchenko/xen-virtio-Handle-PCI-devices-which-Host-controller-is-described-in-DT/20221007-014937
head:   66842eb068a356f13c310952a643f075a97a57e7
commit: 6535888bc127d9588ed59c1d58d0f59187872ddd xen/virtio: enable grant based virtio on x86
date:   7 hours ago
config: x86_64-rhel-8.3-syz
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/6535888bc127d9588ed59c1d58d0f59187872ddd
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Oleksandr-Tyshchenko/xen-virtio-Handle-PCI-devices-which-Host-controller-is-described-in-DT/20221007-014937
        git checkout 6535888bc127d9588ed59c1d58d0f59187872ddd
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   arch/x86/xen/enlighten_hvm.c: In function 'xen_hvm_guest_init':
>> arch/x86/xen/enlighten_hvm.c:215:39: error: 'xen_virtio_restricted_mem_acc' undeclared (first use in this function)
     215 |                 virtio_set_mem_acc_cb(xen_virtio_restricted_mem_acc);
         |                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/x86/xen/enlighten_hvm.c:215:39: note: each undeclared identifier is reported only once for each function it appears in


vim +/xen_virtio_restricted_mem_acc +215 arch/x86/xen/enlighten_hvm.c

   208	
   209	static void __init xen_hvm_guest_init(void)
   210	{
   211		if (xen_pv_domain())
   212			return;
   213	
   214		if (IS_ENABLED(CONFIG_XEN_VIRTIO_FORCE_GRANT))
 > 215			virtio_set_mem_acc_cb(xen_virtio_restricted_mem_acc);
   216	
   217		init_hvm_pv_info();
   218	
   219		reserve_shared_info();
   220		xen_hvm_init_shared_info();
   221	
   222		/*
   223		 * xen_vcpu is a pointer to the vcpu_info struct in the shared_info
   224		 * page, we use it in the event channel upcall and in some pvclock
   225		 * related functions.
   226		 */
   227		xen_vcpu_info_reset(0);
   228	
   229		xen_panic_handler_init();
   230	
   231		xen_hvm_smp_init();
   232		WARN_ON(xen_cpuhp_setup(xen_cpu_up_prepare_hvm, xen_cpu_dead_hvm));
   233		xen_unplug_emulated_devices();
   234		x86_init.irqs.intr_init = xen_init_IRQ;
   235		xen_hvm_init_time_ops();
   236		xen_hvm_init_mmu_ops();
   237	

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