From e81d1ad32753cdeaef56b9bffe3b8ab7b5c776e5 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Fri, 10 Jan 2014 01:28:46 +0100 Subject: [PATCH] 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 Signed-off-by: Paolo Bonzini --- virt/kvm/vfio.c | 6 +++--- 1 file 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); -- GitLab