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| author | Paul Bolle <pebolle@tiscali.nl> | 2014-01-10 01:28:46 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-01-15 12:01:48 +0100 |
| commit | e81d1ad32753cdeaef56b9bffe3b8ab7b5c776e5 (patch) | |
| tree | a91791b215e5cc0aa37e5ad031ef5b9b3da249cc /virt | |
| parent | 26a865f4aa8e66a6d94958de7656f7f1b03c6c56 (diff) | |
| download | lwn-e81d1ad32753cdeaef56b9bffe3b8ab7b5c776e5.tar.gz lwn-e81d1ad32753cdeaef56b9bffe3b8ab7b5c776e5.zip | |
kvm: vfio: silence GCC warning
Building vfio.o triggers a GCC warning (when building for 32 bits x86):
arch/x86/kvm/../../../virt/kvm/vfio.c: In function 'kvm_vfio_set_group':
arch/x86/kvm/../../../virt/kvm/vfio.c:104:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
void __user *argp = (void __user *)arg;
^
Silence this warning by casting arg to unsigned long.
argp's current type, "void __user *", is always casted to "int32_t
__user *". So its type might as well be changed to "int32_t __user *".
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/vfio.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c index ca4260e35037..b4f9507ae650 100644 --- a/virt/kvm/vfio.c +++ b/virt/kvm/vfio.c @@ -101,14 +101,14 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg) struct kvm_vfio *kv = dev->private; struct vfio_group *vfio_group; struct kvm_vfio_group *kvg; - void __user *argp = (void __user *)arg; + int32_t __user *argp = (int32_t __user *)(unsigned long)arg; struct fd f; int32_t fd; int ret; switch (attr) { case KVM_DEV_VFIO_GROUP_ADD: - if (get_user(fd, (int32_t __user *)argp)) + if (get_user(fd, argp)) return -EFAULT; f = fdget(fd); @@ -148,7 +148,7 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg) return 0; case KVM_DEV_VFIO_GROUP_DEL: - if (get_user(fd, (int32_t __user *)argp)) + if (get_user(fd, argp)) return -EFAULT; f = fdget(fd); |