[PATCH v4 02/16] s390: cio: export more interfaces

Dong Jia Shi
2017-03-17T08:26:44Z

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>
---
drivers/s390/cio/cio.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 5711e28..7ab6e60 100644
--- 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);
--
2.8.4