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| author | James Bottomley <James.Bottomley@suse.de> | 2010-03-03 11:06:56 +0530 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-03-03 21:17:06 +0530 |
| commit | fac829fdcaf451a20106cbc468ff886466320956 (patch) | |
| tree | 8fd1efcabda65db1abd0bb385367bf3f8389e4db | |
| parent | 98e1e0f07c3f1820b8ac424569ee9e9916d3665b (diff) | |
| download | linux-stable-fac829fdcaf451a20106cbc468ff886466320956.tar.gz linux-stable-fac829fdcaf451a20106cbc468ff886466320956.tar.bz2 linux-stable-fac829fdcaf451a20106cbc468ff886466320956.zip | |
[SCSI] raid_attrs: fix dependency problems
RAID attributes uses scsi_is_sdev_device() to gate some SCSI specific
checking code. This causes two problems. Firstly if SCSI == n just
defining scsi_is_sdev_device() to return false might not be enough to
prevent gcc from emitting the code (and thus referring to undefined
symbols), so this needs surrounding with an ifdef. Secondly, using
scsi_is_sdev_device() when SCSI is either y or m gives a subtle
problem in the m case: raid_attrs must also be m to use the symbol.
Do the usual Kconfig jiggery-pokery to fix this.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| -rw-r--r-- | drivers/scsi/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/scsi/raid_class.c | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 9191d1ea6451..75f2336807cb 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1,9 +1,15 @@ menu "SCSI device support" +config SCSI_MOD + tristate + default y if SCSI=n || SCSI=y + default m if SCSI=m + config RAID_ATTRS tristate "RAID Transport Class" default n depends on BLOCK + depends on SCSI_MOD ---help--- Provides RAID diff --git a/drivers/scsi/raid_class.c b/drivers/scsi/raid_class.c index bd88349b8526..2c146b44d95f 100644 --- a/drivers/scsi/raid_class.c +++ b/drivers/scsi/raid_class.c @@ -63,6 +63,7 @@ static int raid_match(struct attribute_container *cont, struct device *dev) * emulated RAID devices, so start with SCSI */ struct raid_internal *i = ac_to_raid_internal(cont); +#if defined(CONFIG_SCSI) || defined(CONFIG_SCSI_MODULE) if (scsi_is_sdev_device(dev)) { struct scsi_device *sdev = to_scsi_device(dev); @@ -71,6 +72,7 @@ static int raid_match(struct attribute_container *cont, struct device *dev) return i->f->is_raid(dev); } +#endif /* FIXME: look at other subsystems too */ return 0; } |