BSG - 32 bit application running on 64 bit kernel

[Giridhar Malavali <giridhar.malavali@xxxxxxxxxx>]

Hi James,

Running  32 bit BSG application on a 64 bit kernel fails because of   
mismatch in fc_bsg_request structure elements. Packing the  
fc_bsg_request structure solves the issue. Please find the changes  
below. Can u please review.

Thanks,
Giridhar Malavali


The 32bit kernel does not add padding bytes in the fc_bsg_request  
structure
whereas the 64bit kernel adds padding bytes in the fc_bsg_request  
structure.
Due to this, structure elements gets mismatched with 32bit application  
and
64bit kernel.
To resolve this, used packed modifier to avoid adding padding bytes.

Signed-off-by: Harish Zunjarrao <harish.zunjarrao@xxxxxxxxxx>
---
include/scsi/scsi_bsg_fc.h |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/scsi/scsi_bsg_fc.h b/include/scsi/scsi_bsg_fc.h
index a4b2333..00e50ff 100644
--- a/include/scsi/scsi_bsg_fc.h
+++ b/include/scsi/scsi_bsg_fc.h
@@ -292,7 +292,7 @@ struct fc_bsg_request {
               struct fc_bsg_rport_els         r_els;
               struct fc_bsg_rport_ct          r_ct;
       } rqst_data;
-};
+} __attribute__ ((packed));
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