drivers/virtio/virtio_ring.o: warning: objtool: detach_indirect_split+0x160: unreachable instruction

drivers/virtio/virtio_ring.o: warning: objtool: detach_indirect_split+0x160: unreachable instruction

[kernel test robot]

:::::: 
:::::: Manual check reason: "loongarch: unreachable instruction"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Jason Wang <jasowang@redhat.com>
CC: "Michael S. Tsirkin" <mst@redhat.com>
CC: Xuan Zhuo <xuanzhuo@linux.alibaba.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   6b5a2b7d9bc156e505f09e698d85d6a1547c1206
commit: 9dc6b944f16c0904331903ba0ec36e558e1a3537 virtio_ring: factor out split indirect detaching logic
date:   6 months ago
:::::: branch date: 3 hours ago
:::::: commit date: 6 months ago
config: loongarch-randconfig-r064-20260608 (https://download.01.org/0day-ci/archive/20260616/202606162230.Sh7YI71w-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260616/202606162230.Sh7YI71w-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
| Fixes: 9dc6b944f16c ("virtio_ring: factor out split indirect detaching logic")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/r/202606162230.Sh7YI71w-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/virtio/virtio_ring.o: warning: objtool: detach_indirect_split+0x160: unreachable instruction
   drivers/virtio/virtio_ring.o: warning: objtool: virtqueue_add_split+0xe8: unreachable instruction
   drivers/virtio/virtio_ring.o: warning: objtool: virtqueue_detach_unused_buf+0xb0: unreachable instruction
   drivers/virtio/virtio_ring.o: warning: objtool: virtqueue_add_packed+0xf0: unreachable instruction

--
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https://github.com/intel/lkp-tests/wiki