From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Cornelia Huck Subject: [PULL 4/7] s390/cio: Initialize the host addresses in pfn_array Date: Mon, 3 Jun 2019 12:50:35 +0200 Message-Id: <20190603105038.11788-5-cohuck@redhat.com> In-Reply-To: <20190603105038.11788-1-cohuck@redhat.com> References: <20190603105038.11788-1-cohuck@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: kvm-owner@vger.kernel.org List-Archive: List-Post: To: Heiko Carstens , Vasily Gorbik , Christian Borntraeger Cc: Farhan Ali , Eric Farman , Halil Pasic , linux-s390@vger.kernel.org, kvm@vger.kernel.org, Cornelia Huck List-ID: From: Eric Farman Let's initialize the host address to something that is invalid, rather than letting it default to zero. This just makes it easier to notice when a pin operation has failed or been skipped. Signed-off-by: Eric Farman Message-Id: <20190514234248.36203-5-farman@linux.ibm.com> Reviewed-by: Farhan Ali Signed-off-by: Cornelia Huck --- drivers/s390/cio/vfio_ccw_cp.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c index e33265fb80b0..086faf2dacd3 100644 --- a/drivers/s390/cio/vfio_ccw_cp.c +++ b/drivers/s390/cio/vfio_ccw_cp.c @@ -91,8 +91,11 @@ static int pfn_array_alloc(struct pfn_array *pa, u64 iova, unsigned int len) pa->pa_pfn = pa->pa_iova_pfn + pa->pa_nr; pa->pa_iova_pfn[0] = pa->pa_iova >> PAGE_SHIFT; - for (i = 1; i < pa->pa_nr; i++) + pa->pa_pfn[0] = -1ULL; + for (i = 1; i < pa->pa_nr; i++) { pa->pa_iova_pfn[i] = pa->pa_iova_pfn[i - 1] + 1; + pa->pa_pfn[i] = -1ULL; + } return 0; } -- 2.20.1