[S390] qdio: fix compile warning under 31 bit

The QEBSM instructions are only available for CONFIG_64BIT, they are not
used under 31 bit. Make compiler happy about the false positive:

drivers/s390/cio/qdio_main.c: In function ?qdio_inbound_q_done?:
drivers/s390/cio/qdio_main.c:532: warning: ?state? may be used uninitialized in this function

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index a44a8c5b91beb7f79597db31343675242dd0e249..9e6ab41e5a3c49c2875d0c842bbba45c5eb42bc9 100644 (file)
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -529,7 +529,7 @@ int qdio_inbound_q_moved(struct qdio_q *q)
 
 static int qdio_inbound_q_done(struct qdio_q *q)
 {
-       unsigned char state;
+       unsigned char state = 0;
 #ifdef CONFIG_QDIO_DEBUG
        char dbf_text[15];
 #endif

diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index ea7f614002670024f766d887062ff4824029556d..c47f6699a4347fa3c05c3ba06d3705c70d8387e5 100644 (file)
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -125,7 +125,7 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr)
 
 static inline int tiqdio_inbound_q_done(struct qdio_q *q)
 {
-       unsigned char state;
+       unsigned char state = 0;
 
        if (!atomic_read(&q->nr_buf_used))
                return 1;