From: Cornelia Huck <cornelia.huck@xxxxxxxxxx>
Make chsc_error_from_response() available to chsc callers outside
of chsc.c (namely qdio) to avoid duplicating error checking code.
Signed-off-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---
drivers/s390/cio/chsc.c | 9 ++++++++-
drivers/s390/cio/chsc.h | 2 ++
2 files changed, 10 insertions(+), 1 deletion(-)
Index: quilt-2.6/drivers/s390/cio/chsc.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/chsc.c
+++ quilt-2.6/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
return -EIO;
}
}
+EXPORT_SYMBOL_GPL(chsc_error_from_response);
struct chsc_ssd_area {
struct chsc_header request;
Index: quilt-2.6/drivers/s390/cio/chsc.h
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/chsc.h
+++ quilt-2.6/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
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
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