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authorSebastian Ott <sebott@linux.vnet.ibm.com>2014-05-07 13:27:21 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2014-05-20 08:58:53 +0200
commit2bf29df7460f4038f84ac5dea3cbe582d6d4af82 (patch)
treef3c8fc9a1199da5a2d0426cc509d145097c22894 /drivers/s390/cio/device_ops.c
parents390/spinlock: fix system hang with spin_retry <= 0 (diff)
downloadlinux-2bf29df7460f4038f84ac5dea3cbe582d6d4af82.tar.xz
linux-2bf29df7460f4038f84ac5dea3cbe582d6d4af82.zip
s390/cio: fix multiple structure definitions
Fix multiple definitions of struct channel_path_desc by moving it to asm/chpid.h . Also change ccw_device_get_chp_desc to use proper types. Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/device_ops.c')
-rw-r--r--drivers/s390/cio/device_ops.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index 4845d64f2842..f3c417943dad 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -563,14 +563,23 @@ out_unlock:
return rc;
}
-void *ccw_device_get_chp_desc(struct ccw_device *cdev, int chp_no)
+/**
+ * chp_get_chp_desc - return newly allocated channel-path descriptor
+ * @cdev: device to obtain the descriptor for
+ * @chp_idx: index of the channel path
+ *
+ * On success return a newly allocated copy of the channel-path description
+ * data associated with the given channel path. Return %NULL on error.
+ */
+struct channel_path_desc *ccw_device_get_chp_desc(struct ccw_device *cdev,
+ int chp_idx)
{
struct subchannel *sch;
struct chp_id chpid;
sch = to_subchannel(cdev->dev.parent);
chp_id_init(&chpid);
- chpid.id = sch->schib.pmcw.chpid[chp_no];
+ chpid.id = sch->schib.pmcw.chpid[chp_idx];
return chp_get_chp_desc(chpid);
}