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-rw-r--r--drivers/s390/cio/css.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index f26e16d..71efca2 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -126,6 +126,7 @@ extern struct css_driver io_subchannel_driver;
extern int css_probe_device(struct subchannel_id);
extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
extern int css_init_done;
+extern int for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *);
#define __MAX_SUBCHANNEL 65535
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