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authorChristoph Hellwig <hch@lst.de>2007-05-31 22:12:26 +0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-06-01 01:29:25 +0400
commitbcd92c9fbcc679ee95003083056f0441a1f474fa (patch)
treedb82936fad9869ea76e13c221d7868e9fb8482ed /include/scsi/scsi_host.h
parent10803de4c18e8e085573fd7153de3e64d4246af5 (diff)
downloadlinux-bcd92c9fbcc679ee95003083056f0441a1f474fa.tar.xz
[SCSI] introduce shost_priv helper
Currently accessing the scsi host private data is rather messy because it comes as an unsigned long that always needs a cast first. This patch introduces a helper that does the cast called shost_priv. It's similar in spirit to netdev_priv for network drivers. This is the first patch introducing the macro, and the second patch in the series will convert esp and it's subdrivers as an example. Further conversion will wait until the helper is in the tree to make patch juggling easier. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi/scsi_host.h')
-rw-r--r--include/scsi/scsi_host.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 4a2e490abfed..ba07cf7c04ba 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -671,6 +671,10 @@ struct Scsi_Host {
#define shost_printk(prefix, shost, fmt, a...) \
dev_printk(prefix, &(shost)->shost_gendev, fmt, ##a)
+static inline void *shost_priv(struct Scsi_Host *shost)
+{
+ return (void *)shost->hostdata;
+}
int scsi_is_host_device(const struct device *);