[android-common:android15-6.6-2026-07 2/2] drivers/virt/gunyah/gunyah_irqfd.c:126:13: warning: assignment makes pointer from integer without a cast

[android-common:android15-6.6-2026-07 2/2] drivers/virt/gunyah/gunyah_irqfd.c:126:13: warning: assignment makes pointer from integer without a cast

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common android15-6.6-2026-07
head:   d30ff9c22cb6fcc072d03268110b3797daba99be
commit: 22b6a37b0df03a6d7f5ac240b3ccd1f19f946a49 [2/2] FROMLIST: virt: gunyah: Add irqfd interface
config: arm64-randconfig-r2101-20261020 (https://download.01.org/0day-ci/archive/20261020/202610200630.WNbILVf4-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261020/202610200630.WNbILVf4-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610200630.WNbILVf4-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/virt/gunyah/gunyah_irqfd.c: In function 'gunyah_irqfd_bind':
   drivers/virt/gunyah/gunyah_irqfd.c:126:15: error: implicit declaration of function 'eventfd_ctx_fileget'; did you mean 'eventfd_ctx_fdget'? [-Werror=implicit-function-declaration]
     irqfd->ctx = eventfd_ctx_fileget(fd.file);
                  ^~~~~~~~~~~~~~~~~~~
                  eventfd_ctx_fdget
>> drivers/virt/gunyah/gunyah_irqfd.c:126:13: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
     irqfd->ctx = eventfd_ctx_fileget(fd.file);
                ^
   cc1: some warnings being treated as errors

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for WIRELESS_EXT
   Depends on [n]: NET [=y] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for WEXT_CORE
   Depends on [n]: NET [=y] && WIRELESS [=n] && (CFG80211_WEXT [=n] || WIRELESS_EXT [=y])
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for CAN_RX_OFFLOAD
   Depends on [n]: NETDEVICES [=y] && CAN_DEV [=n] && CAN_NETLINK [=n]
   Selected by [y]:
   - GKI_HIDDEN_MCP251XFD_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for WEXT_PROC
   Depends on [n]: NET [=y] && WIRELESS [=n] && PROC_FS [=n] && WEXT_CORE [=y]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for WEXT_PRIV
   Depends on [n]: NET [=y] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for WEXT_SPY
   Depends on [n]: NET [=y] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]


vim +126 drivers/virt/gunyah/gunyah_irqfd.c

    97	
    98	static long gunyah_irqfd_bind(struct gunyah_vm_function_instance *f)
    99	{
   100		struct gunyah_fn_irqfd_arg *args = f->argp;
   101		struct gunyah_irqfd *irqfd;
   102		__poll_t events;
   103		struct fd fd;
   104		long r;
   105	
   106		if (f->arg_size != sizeof(*args))
   107			return -EINVAL;
   108	
   109		/* All other flag bits are reserved for future use */
   110		if (args->flags & ~GUNYAH_IRQFD_FLAGS_LEVEL)
   111			return -EINVAL;
   112	
   113		irqfd = kzalloc(sizeof(*irqfd), GFP_KERNEL);
   114		if (!irqfd)
   115			return -ENOMEM;
   116	
   117		irqfd->f = f;
   118		f->data = irqfd;
   119	
   120		fd = fdget(args->fd);
   121		if (!fd.file) {
   122			kfree(irqfd);
   123			return -EBADF;
   124		}
   125	
 > 126		irqfd->ctx = eventfd_ctx_fileget(fd.file);
   127		if (IS_ERR(irqfd->ctx)) {
   128			r = PTR_ERR(irqfd->ctx);
   129			goto err_fdput;
   130		}
   131	
   132		if (args->flags & GUNYAH_IRQFD_FLAGS_LEVEL)
   133			irqfd->level = true;
   134	
   135		init_waitqueue_func_entry(&irqfd->wait, irqfd_wakeup);
   136		init_poll_funcptr(&irqfd->pt, irqfd_ptable_queue_proc);
   137	
   138		irqfd->ticket.resource_type = GUNYAH_RESOURCE_TYPE_BELL_TX;
   139		irqfd->ticket.label = args->label;
   140		irqfd->ticket.owner = THIS_MODULE;
   141		irqfd->ticket.populate = gunyah_irqfd_populate;
   142		irqfd->ticket.unpopulate = gunyah_irqfd_unpopulate;
   143	
   144		r = gunyah_vm_add_resource_ticket(f->ghvm, &irqfd->ticket);
   145		if (r)
   146			goto err_ctx;
   147	
   148		events = vfs_poll(fd.file, &irqfd->pt);
   149		if (events & EPOLLIN)
   150			pr_warn("Premature injection of interrupt\n");
   151		fdput(fd);
   152	
   153		return 0;
   154	err_ctx:
   155		eventfd_ctx_put(irqfd->ctx);
   156	err_fdput:
   157		fdput(fd);
   158		kfree(irqfd);
   159		return r;
   160	}
   161	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki