From: Julian Wiedmann <jwi@linux.ibm.com>
Date: Wed, 18 Mar 2020 13:54:53 +0100
Subject: s390/qeth: add phys_to_virt() translation for AOB
Git-commit: 86e7a4e4afd5bb3b852f37fc8cb61bac2a1f19ce
Patch-mainline: v5.7-rc1
References: jsc#SLE-13690
Data addresses in the AOB are absolute, and need to be translated before
being fed into kmem_cache_free(). Currently this phys_to_virt() is a no-op.
Also see commit 2db01da8d25f ("s390/qdio: fill SBALEs with absolute addresses").
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/s390/net/qeth_core_main.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 33796fe80a63..3f0b13ff580e 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -538,9 +538,10 @@ static void qeth_qdio_handle_aob(struct qeth_card *card,
for (i = 0;
i < aob->sb_count && i < QETH_MAX_BUFFER_ELEMENTS(card);
i++) {
- if (aob->sba[i] && buffer->is_header[i])
- kmem_cache_free(qeth_core_header_cache,
- (void *) aob->sba[i]);
+ void *data = phys_to_virt(aob->sba[i]);
+
+ if (data && buffer->is_header[i])
+ kmem_cache_free(qeth_core_header_cache, data);
}
atomic_set(&buffer->state, QETH_QDIO_BUF_HANDLED_DELAYED);