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| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-09-08 15:35:44 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2016-09-08 15:35:44 +0200 |
| commit | 6f90f1d1d2d853b2745afdd83800b170996fab50 (patch) | |
| tree | 8d61cbc70dbda0d025c11fe6228bce678b1b1b30 /include | |
| parent | 411b44ba80ab0023383fe3f377e903cb0cb7d8bb (diff) | |
| parent | b0eb91ae630a4f2771790e306bb4df323127a397 (diff) | |
| download | linux-6f90f1d1d2d853b2745afdd83800b170996fab50.tar.gz linux-6f90f1d1d2d853b2745afdd83800b170996fab50.tar.bz2 linux-6f90f1d1d2d853b2745afdd83800b170996fab50.zip | |
Merge tag 'kvm-s390-next-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: s390: features and fixes for 4.9
- lazy enablement of runtime instrumentation
- up to 255 CPUs for nested guests
- rework of machine check deliver
- cleanups/fixes
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/compiler.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 1bb954842725..436aa4e42221 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -527,13 +527,13 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s * object's lifetime is managed by something other than RCU. That * "something other" might be reference counting or simple immortality. * - * The seemingly unused void * variable is to validate @p is indeed a pointer - * type. All pointer types silently cast to void *. + * The seemingly unused size_t variable is to validate @p is indeed a pointer + * type by making sure it can be dereferenced. */ #define lockless_dereference(p) \ ({ \ typeof(p) _________p1 = READ_ONCE(p); \ - __maybe_unused const void * const _________p2 = _________p1; \ + size_t __maybe_unused __size_of_ptr = sizeof(*(p)); \ smp_read_barrier_depends(); /* Dependency order vs. p above. */ \ (_________p1); \ }) |