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-rw-r--r--drivers/s390/cio/chsc.c9
-rw-r--r--drivers/s390/cio/chsc.h2
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 65264a38057..29826fdd47b 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -27,7 +27,13 @@
static void *sei_page;
-static int chsc_error_from_response(int response)
+/**
+ * chsc_error_from_response() - convert a chsc response to an error
+ * @response: chsc response code
+ *
+ * Returns an appropriate Linux error code for @response.
+ */
+int chsc_error_from_response(int response)
{
switch (response) {
case 0x0001:
@@ -45,6 +51,7 @@ static int chsc_error_from_response(int response)
return -EIO;
}
}
+EXPORT_SYMBOL_GPL(chsc_error_from_response);
struct chsc_ssd_area {
struct chsc_header request;
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index fb6c4d6c45b..ba59bceace9 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -101,4 +101,6 @@ void chsc_chp_online(struct chp_id chpid);
void chsc_chp_offline(struct chp_id chpid);
int chsc_get_channel_measurement_chars(struct channel_path *chp);
+int chsc_error_from_response(int response);
+
#endif