On Fri, Mar 11, 2016 at 10:37:45PM -0800, Greg KH wrote: > On Tue, Mar 08, 2016 at 02:42:01PM +0000, James Hogan wrote: > > On Tue, Mar 08, 2016 at 06:10:29AM -0800, Greg KH wrote: > > > On Tue, Mar 08, 2016 at 02:01:08PM +0000, James Hogan wrote: > > > > Hi Greg, > > > > > > > > On Mon, Mar 07, 2016 at 12:39:08PM -0800, gregkh@xxxxxxxxxxxxxxxxxxx wrote: > > > > > > > > > > The patch below does not apply to the 4.4-stable tree. > > > > > If someone wants it applied there, or to any other stable or longterm > > > > > tree, then please email the backport, including the original git commit > > > > > id to <stable@xxxxxxxxxxxxxxx>. > > > > > > > > I don't see any conflicts when this is applied to 4.4.4. Asside from the > > > > hashes the cherry-picked commit is identical. Is it conflicting with > > > > some other stable patch since then or something? > > > > > > Try using patch, not 'cherry-pick' and see if it still applies. > > > > $ git reset --hard HEAD~ > > HEAD is now at c252409a688a Linux 4.4.4 > > $ git show 887349f69f37e71e2a8bfbd743831625a0b2ff51 | patch -p1 > > patching file arch/mips/kvm/mips.c > > $ git diff | cat > > diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c > > index b9b803facdbf..2683d04fdda5 100644 > > --- a/arch/mips/kvm/mips.c > > +++ b/arch/mips/kvm/mips.c > > @@ -702,7 +702,7 @@ static int kvm_mips_get_reg(struct kvm_vcpu *vcpu, > > } else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U128) { > > void __user *uaddr = (void __user *)(long)reg->addr; > > > > - return copy_to_user(uaddr, vs, 16); > > + return copy_to_user(uaddr, vs, 16) ? -EFAULT : 0; > > } else { > > return -EINVAL; > > } > > @@ -732,7 +732,7 @@ static int kvm_mips_set_reg(struct kvm_vcpu *vcpu, > > } else if ((reg->id & KVM_REG_SIZE_MASK) == KVM_REG_SIZE_U128) { > > void __user *uaddr = (void __user *)(long)reg->addr; > > > > - return copy_from_user(vs, uaddr, 16); > > + return copy_from_user(vs, uaddr, 16) ? -EFAULT : 0; > > } else { > > return -EINVAL; > > } > > > > Fails for me: > > ~/linux/stable/linux-4.4.y $ git show 887349f69f37e71e2a8bfbd743831625a0b2ff51 | patch -p1 > patching file arch/mips/kvm/mips.c > Reversed (or previously applied) patch detected! Assume -R? [n] > Apply anyway? [n] > Skipping patch. > 2 out of 2 hunks ignored -- saving rejects to file arch/mips/kvm/mips.c.rej > > > Is this an issue with 4.4.5 perhaps? > > Ah, do we have duplicate patches here? Look at commit > 0178fd7dcc4451fcb90bec5e91226586962478d2 which is in 4.4.5 now, it's > this same patch... Ah yes, that'd be it. Both Ralf and Paolo applied it. Thanks James
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