* Re: [RFC PATCH v4 06/14] KVM: guest_memfd: Handle final folio_put() of guestmem pages
[not found] <20241213164811.2006197-7-tabba@google.com>
@ 2024-12-14 18:53 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-12-14 18:53 UTC (permalink / raw)
To: Fuad Tabba; +Cc: llvm, oe-kbuild-all
Hi Fuad,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:
[auto build test WARNING on fac04efc5c793dccbd07e2d59af9f90b7fc0dca4]
url: https://github.com/intel-lab-lkp/linux/commits/Fuad-Tabba/mm-Consolidate-freeing-of-typed-folios-on-final-folio_put/20241214-005109
base: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4
patch link: https://lore.kernel.org/r/20241213164811.2006197-7-tabba%40google.com
patch subject: [RFC PATCH v4 06/14] KVM: guest_memfd: Handle final folio_put() of guestmem pages
config: i386-buildonly-randconfig-006-20241215 (https://download.01.org/0day-ci/archive/20241215/202412150235.pdU2pDm8-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241215/202412150235.pdU2pDm8-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/202412150235.pdU2pDm8-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from arch/x86/events/intel/core.c:17:
In file included from include/linux/kvm_host.h:16:
In file included from include/linux/mm.h:2223:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
In file included from arch/x86/events/intel/core.c:17:
>> include/linux/kvm_host.h:2620:5: warning: no previous prototype for function 'kvm_slot_gmem_register_callback' [-Wmissing-prototypes]
2620 | int kvm_slot_gmem_register_callback(struct kvm_memory_slot *slot, gfn_t gfn)
| ^
include/linux/kvm_host.h:2620:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2620 | int kvm_slot_gmem_register_callback(struct kvm_memory_slot *slot, gfn_t gfn)
| ^
| static
2 warnings generated.
vim +/kvm_slot_gmem_register_callback +2620 include/linux/kvm_host.h
2566
2567 #ifdef CONFIG_KVM_GMEM_MAPPABLE
2568 bool kvm_gmem_is_mappable(struct kvm *kvm, gfn_t gfn, gfn_t end);
2569 int kvm_gmem_set_mappable(struct kvm *kvm, gfn_t start, gfn_t end);
2570 int kvm_gmem_clear_mappable(struct kvm *kvm, gfn_t start, gfn_t end);
2571 int kvm_slot_gmem_set_mappable(struct kvm_memory_slot *slot, gfn_t start,
2572 gfn_t end);
2573 int kvm_slot_gmem_clear_mappable(struct kvm_memory_slot *slot, gfn_t start,
2574 gfn_t end);
2575 bool kvm_slot_gmem_is_mappable(struct kvm_memory_slot *slot, gfn_t gfn);
2576 bool kvm_slot_gmem_is_guest_mappable(struct kvm_memory_slot *slot, gfn_t gfn);
2577 int kvm_slot_gmem_register_callback(struct kvm_memory_slot *slot, gfn_t gfn);
2578 void kvm_gmem_handle_folio_put(struct folio *folio);
2579 #else
2580 static inline bool kvm_gmem_is_mappable(struct kvm *kvm, gfn_t gfn, gfn_t end)
2581 {
2582 WARN_ON_ONCE(1);
2583 return false;
2584 }
2585 static inline int kvm_gmem_set_mappable(struct kvm *kvm, gfn_t start, gfn_t end)
2586 {
2587 WARN_ON_ONCE(1);
2588 return -EINVAL;
2589 }
2590 static inline int kvm_gmem_clear_mappable(struct kvm *kvm, gfn_t start,
2591 gfn_t end)
2592 {
2593 WARN_ON_ONCE(1);
2594 return -EINVAL;
2595 }
2596 static inline int kvm_slot_gmem_set_mappable(struct kvm_memory_slot *slot,
2597 gfn_t start, gfn_t end)
2598 {
2599 WARN_ON_ONCE(1);
2600 return -EINVAL;
2601 }
2602 static inline int kvm_slot_gmem_clear_mappable(struct kvm_memory_slot *slot,
2603 gfn_t start, gfn_t end)
2604 {
2605 WARN_ON_ONCE(1);
2606 return -EINVAL;
2607 }
2608 static inline bool kvm_slot_gmem_is_mappable(struct kvm_memory_slot *slot,
2609 gfn_t gfn)
2610 {
2611 WARN_ON_ONCE(1);
2612 return false;
2613 }
2614 static inline bool kvm_slot_gmem_is_guest_mappable(struct kvm_memory_slot *slot,
2615 gfn_t gfn)
2616 {
2617 WARN_ON_ONCE(1);
2618 return false;
2619 }
> 2620 int kvm_slot_gmem_register_callback(struct kvm_memory_slot *slot, gfn_t gfn)
2621 {
2622 WARN_ON_ONCE(1);
2623 return -EINVAL;
2624 }
2625 static inline void kvm_gmem_handle_folio_put(struct folio *folio)
2626 {
2627 WARN_ON_ONCE(1);
2628 }
2629 #endif /* CONFIG_KVM_GMEM_MAPPABLE */
2630
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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