[android-common:android16-6.12-2026-06 2/2] drivers/virt/halla/hvm_vtimer.c:77:16: warning: variable 'ret' set but not used

[android-common:android16-6.12-2026-06 2/2] drivers/virt/halla/hvm_vtimer.c:77:16: warning: variable 'ret' set but not used

[kernel test robot]

Hi Kim,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android16-6.12-2026-06
head:   2bc1fb49dca33ce65e6cf7f3036165999d31feee
commit: 9007a992df6c7fbc50cbcc21613b3a5c3c019ab6 [2/2] ANDROID: drivers: virt: Initialization halla module
config: arm64-randconfig-r2303-20261014 (https://download.01.org/0day-ci/archive/20261014/202610141610.OIBn4TGk-lkp@intel.com/config)
compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6)
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261014/202610141610.OIBn4TGk-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/202610141610.OIBn4TGk-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/virt/halla/hvm_vtimer.c:77:16: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
           unsigned long ret;
                         ^
   1 warning generated.
--
>> drivers/virt/halla/hvm_ioeventfd.c:27: warning: Function parameter or struct member 'hvm' not described in 'ioeventfd_check_collision'
>> drivers/virt/halla/hvm_ioeventfd.c:231: warning: Function parameter or struct member 'hvm' not described in 'hvm_ioeventfd'

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for USB_PHY
   Depends on [n]: USB_SUPPORT [=n]
   Selected by [y]:
   - GKI_HIDDEN_USB_CONFIGS [=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 PHYLINK
   Depends on [n]: NETDEVICES [=n]
   Selected by [y]:
   - GKI_HIDDEN_ETHERNET_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for INTEL_MEI_ME
   Depends on [n]: X86 && PCI [=y]
   Selected by [m]:
   - INTEL_MEI_PXP [=m] && (DRM_I915 [=n] || DRM_XE [=m])
   WARNING: unmet direct dependencies detected for FB_IOMEM_HELPERS
   Depends on [n]: HAS_IOMEM [=y] && FB_CORE [=n]
   Selected by [m]:
   - DRM_XE_DISPLAY [=y] && HAS_IOMEM [=y] && DRM [=y] && DRM_XE [=m] && DRM_XE [=m]=m [=m]
   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 [=n] && CAN_DEV [=n] && CAN_NETLINK [=n]
   Selected by [y]:
   - GKI_HIDDEN_MCP251XFD_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for WEXT_SPY
   Depends on [n]: NET [=y] && WIRELESS [=n]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]
   WARNING: unmet direct dependencies detected for WEXT_PROC
   Depends on [n]: NET [=y] && WIRELESS [=n] && PROC_FS [=y] && WEXT_CORE [=y]
   Selected by [y]:
   - GKI_LEGACY_WEXT_ALLCONFIG [=y]


vim +/ret +77 drivers/virt/halla/hvm_vtimer.c

    74	
    75	static irqreturn_t hvm_arch_timer_handler(int irq, void *dev_id)
    76	{
  > 77		unsigned long ret;
    78		u32 tuple = *(u32 *)dev_id;
    79		u32 timer_ppi = guest_vtimer_irq - HVM_IRQ_PPI_START_NUM;
    80	
    81		if (tuple == (u32)(~0) || (read_sysreg(cntp_ctl_el0) & (u64)(2)))
    82			return IRQ_NONE;
    83	
    84		// mask timer
    85		write_sysreg(read_sysreg(cntp_ctl_el0) | (u64)(2), cntp_ctl_el0);
    86		isb();
    87	
    88		// call IRQ_LINE HVC
    89		ret = exynos_hvc(HVC_FID_HVM_IRQ_LINE, tuple,
    90				((u32)(1) << 31) | timer_ppi, true, 0);
    91	
    92		return IRQ_HANDLED;
    93	}
    94	

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