adulau/aha
1
0
Fork 0
mirror of https://github.com/adulau/aha.git synced 2025-01-04 07:03:38 +00:00
Code Issues Projects Releases Packages Wiki Activity

[SCSI] fc_transport: Generalize WWN to u64 interger conversions.

Browse source 
On some platforms the hard-casting of 8 byte node_name and
port_name arrays to an u64 would cause unaligned-access
warnings.  Generalize the conversions with a transport
helper function which performs consistent shifting of WWN
bytes.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Andrew Vasquez 2005-08-31 15:18:35 -07:00 committed by James Bottomley
parent 37be6eeb49
commit 218fba0004
1 changed files with 8 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
include/scsi/scsi_transport_fc.h
View file

@ -439,4 +439,12 @@ int fc_remote_port_block(struct fc_rport *rport);
void fc_remote_port_unblock(struct fc_rport *rport); void fc_remote_port_unblock(struct fc_rport *rport);
int scsi_is_fc_rport(const struct device *); int scsi_is_fc_rport(const struct device *);
static inline u64 wwn_to_u64(u8 *wwn)
{
return (u64)wwn[0] << 56 | (u64)wwn[1] << 48 |
(u64)wwn[2] << 40 | (u64)wwn[3] << 32 |
(u64)wwn[4] << 24 | (u64)wwn[5] << 16 |
(u64)wwn[6] << 8 | (u64)wwn[7];
}
#endif /* SCSI_TRANSPORT_FC_H */ #endif /* SCSI_TRANSPORT_FC_H */