s390: cio: export more interfaces

Export the common I/O interfaces those are needed by an I/O
subchannel driver to actually talk to the subchannel.

Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-3-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index c7ee3e44f1627c1ca9030c420e22a00c0b3f2118..89216174fcbba8f83d3a0a79a633f6e1cb91ad88 100644 (file)
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -170,12 +170,14 @@ cio_start_key (struct subchannel *sch,    /* subchannel structure */
                return ccode;
        }
 }
+EXPORT_SYMBOL_GPL(cio_start_key);
 
 int
 cio_start (struct subchannel *sch, struct ccw1 *cpa, __u8 lpm)
 {
        return cio_start_key(sch, cpa, lpm, PAGE_DEFAULT_KEY);
 }
+EXPORT_SYMBOL_GPL(cio_start);
 
 /*
  * resume suspended I/O operation
@@ -208,6 +210,7 @@ cio_resume (struct subchannel *sch)
                return -ENODEV;
        }
 }
+EXPORT_SYMBOL_GPL(cio_resume);
 
 /*
  * halt I/O operation
@@ -241,6 +244,7 @@ cio_halt(struct subchannel *sch)
                return -ENODEV;
        }
 }
+EXPORT_SYMBOL_GPL(cio_halt);
 
 /*
  * Clear I/O operation
@@ -271,6 +275,7 @@ cio_clear(struct subchannel *sch)
                return -ENODEV;
        }
 }
+EXPORT_SYMBOL_GPL(cio_clear);
 
 /*
  * Function: cio_cancel
@@ -308,6 +313,7 @@ cio_cancel (struct subchannel *sch)
                return -ENODEV;
        }
 }
+EXPORT_SYMBOL_GPL(cio_cancel);
 
 /**
  * cio_cancel_halt_clear - Cancel running I/O by performing cancel, halt
@@ -368,6 +374,7 @@ int cio_cancel_halt_clear(struct subchannel *sch, int *iretry)
        /* Function was unsuccessful */
        return -EIO;
 }
+EXPORT_SYMBOL_GPL(cio_cancel_halt_clear);
 
 static void cio_apply_config(struct subchannel *sch, struct schib *schib)
 {
@@ -441,6 +448,7 @@ int cio_commit_config(struct subchannel *sch)
        }
        return ret;
 }
+EXPORT_SYMBOL_GPL(cio_commit_config);
 
 /**
  * cio_update_schib - Perform stsch and update schib if subchannel is valid.
@@ -1046,6 +1054,7 @@ int cio_tm_start_key(struct subchannel *sch, struct tcw *tcw, u8 lpm, u8 key)
                return cio_start_handle_notoper(sch, lpm);
        }
 }
+EXPORT_SYMBOL_GPL(cio_tm_start_key);
 
 /**
  * cio_tm_intrg - perform interrogate function
@@ -1071,3 +1080,4 @@ int cio_tm_intrg(struct subchannel *sch)
                return -ENODEV;
        }
 }
+EXPORT_SYMBOL_GPL(cio_tm_intrg);