* [mst-vhost:vhost 5/37] drivers/virtio/virtio_balloon.c:372:37: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type')
@ 2024-09-11 7:04 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-09-11 7:04 UTC (permalink / raw)
Cc: oe-kbuild-all, llvm
CC: kvm@vger.kernel.org
CC: virtualization@lists.linux-foundation.org
CC: netdev@vger.kernel.org
TO: zhenwei pi <pizhenwei@bytedance.com>
CC: "Michael S. Tsirkin" <mst@redhat.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
head: 025b6cabd88a35947637ffb7613e90c871c3381b
commit: c5b70a26aac39f09a23fd72f44cfbb3d4d5a14d5 [5/37] virtio_balloon: introduce memory allocation stall counter
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240911/202409111508.O5YtdBhp-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project bf684034844c660b778f0eba103582f582b710c9)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240911/202409111508.O5YtdBhp-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/202409111508.O5YtdBhp-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/virtio/virtio_balloon.c:9:
In file included from include/linux/virtio.h:7:
In file included from include/linux/scatterlist.h:8:
In file included from include/linux/mm.h:2228:
include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
517 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from drivers/virtio/virtio_balloon.c:9:
In file included from include/linux/virtio.h:7:
In file included from include/linux/scatterlist.h:9:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
| ^
In file included from drivers/virtio/virtio_balloon.c:9:
In file included from include/linux/virtio.h:7:
In file included from include/linux/scatterlist.h:9:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
| ~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
| ^
In file included from drivers/virtio/virtio_balloon.c:9:
In file included from include/linux/virtio.h:7:
In file included from include/linux/scatterlist.h:9:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
>> drivers/virtio/virtio_balloon.c:372:37: warning: arithmetic between different enumeration types ('enum vm_event_item' and 'enum zone_type') [-Wenum-enum-conversion]
372 | stall += events[ALLOCSTALL_NORMAL - ZONE_NORMAL + zid];
| ~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~
8 warnings generated.
vim +372 drivers/virtio/virtio_balloon.c
351
352 #ifdef CONFIG_VM_EVENT_COUNTERS
353 /* Return the number of entries filled by vm events */
354 static inline unsigned int update_balloon_vm_stats(struct virtio_balloon *vb)
355 {
356 unsigned long events[NR_VM_EVENT_ITEMS];
357 unsigned int idx = 0;
358 unsigned int zid;
359 unsigned long stall = 0;
360
361 all_vm_events(events);
362 update_stat(vb, idx++, VIRTIO_BALLOON_S_SWAP_IN,
363 pages_to_bytes(events[PSWPIN]));
364 update_stat(vb, idx++, VIRTIO_BALLOON_S_SWAP_OUT,
365 pages_to_bytes(events[PSWPOUT]));
366 update_stat(vb, idx++, VIRTIO_BALLOON_S_MAJFLT, events[PGMAJFAULT]);
367 update_stat(vb, idx++, VIRTIO_BALLOON_S_MINFLT, events[PGFAULT]);
368 update_stat(vb, idx++, VIRTIO_BALLOON_S_OOM_KILL, events[OOM_KILL]);
369
370 /* sum all the stall events */
371 for (zid = 0; zid < MAX_NR_ZONES; zid++)
> 372 stall += events[ALLOCSTALL_NORMAL - ZONE_NORMAL + zid];
373
374 update_stat(vb, idx++, VIRTIO_BALLOON_S_ALLOC_STALL, stall);
375
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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