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| author | Chandra Seetharaman <sekharan@us.ibm.com> | 2008-05-24 05:16:40 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-15 18:16:43 +0400 |
| commit | fe9233fb6914a0eb20166c967e3020f7f0fba2c9 (patch) | |
| tree | 45d6f25301e41ff9323f2eee20fce6ae341cda7f /include/scsi/scsi_dh.h | |
| parent | d7f305e9a08040649b0800245e67708df58cdb55 (diff) | |
| download | linux-fe9233fb6914a0eb20166c967e3020f7f0fba2c9.tar.xz | |
[SCSI] scsi_dh: fix kconfig related build errors
Do not automatically "select" SCSI_DH for dm-multipath. If SCSI_DH
doesn't exist,just do not allow hardware handlers to be used.
Handle SCSI_DH being a module also. Make sure it doesn't allow DM_MULTIPATH
to be compiled in when SCSI_DH is a module.
[jejb: added comment for Kconfig syntax]
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'include/scsi/scsi_dh.h')
| -rw-r--r-- | include/scsi/scsi_dh.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/scsi/scsi_dh.h b/include/scsi/scsi_dh.h index 04d0d8495c83..3ad2303d1a16 100644 --- a/include/scsi/scsi_dh.h +++ b/include/scsi/scsi_dh.h @@ -54,6 +54,16 @@ enum { SCSI_DH_NOSYS, SCSI_DH_DRIVER_MAX, }; - +#if defined(CONFIG_SCSI_DH) || defined(CONFIG_SCSI_DH_MODULE) extern int scsi_dh_activate(struct request_queue *); extern int scsi_dh_handler_exist(const char *); +#else +static inline int scsi_dh_activate(struct request_queue *req) +{ + return 0; +} +static inline int scsi_dh_handler_exist(const char *name) +{ + return 0; +} +#endif |