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[net-next,09/11] s390/qeth: add phys_to_virt() translation for AOB

Message ID 20200318125455.5838-10-jwi@linux.ibm.com
State New
Headers show
Series s390/qeth: updates 2020-03-18 | expand

Commit Message

Julian Wiedmann March 18, 2020, 12:54 p.m. UTC 
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>
---
 drivers/s390/net/qeth_core_main.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
diff mbox series

Patch

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);