From: Eric Farman Date: Tue, 14 May 2019 23:42:45 +0000 (+0200) Subject: s390/cio: Initialize the host addresses in pfn_array X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c34a12e6a3df3aae8cb6f47baf0d14ef0fbecf7f;p=openwrt%2Fstaging%2Fblogic.git s390/cio: Initialize the host addresses in pfn_array 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 --- 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; }