Patch "KVM: PPC: Book3S HV: Fix typo in kvmppc_hv_get_dirty_log_radix()" has been added to the 4.15-stable tree

Patch "KVM: PPC: Book3S HV: Fix typo in kvmppc_hv_get_dirty_log_radix()" has been added to the 4.15-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    KVM: PPC: Book3S HV: Fix typo in kvmppc_hv_get_dirty_log_radix()

to the 4.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     kvm-ppc-book3s-hv-fix-typo-in-kvmppc_hv_get_dirty_log_radix.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Fri Mar 16 15:11:07 CET 2018
From: Paul Mackerras <paulus@ozlabs.org>
Date: Fri, 10 Nov 2017 16:43:35 +1100
Subject: KVM: PPC: Book3S HV: Fix typo in kvmppc_hv_get_dirty_log_radix()

From: Paul Mackerras <paulus@ozlabs.org>


[ Upstream commit 117647ff936e2d9684cc881d87c0291f46669c20 ]

This fixes a typo where the intent was to assign to 'j' in order to
skip some number of bits in the dirty bitmap for a guest.  The effect
of the typo is benign since it means we just iterate through all the
bits rather than skipping bits which we know will be zero.  This issue
was found by Coverity.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kvm/book3s_64_mmu_radix.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -573,7 +573,7 @@ long kvmppc_hv_get_dirty_log_radix(struc
 		j = i + 1;
 		if (npages) {
 			set_dirty_bits(map, i, npages);
-			i = j + npages;
+			j = i + npages;
 		}
 	}
 	return 0;


Patches currently in stable-queue which might be from paulus@ozlabs.org are

queue-4.15/kvm-ppc-book3s-hv-avoid-shifts-by-negative-amounts.patch
queue-4.15/kvm-ppc-book3s-hv-fix-typo-in-kvmppc_hv_get_dirty_log_radix.patch