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author | Ingo Molnar <mingo@elte.hu> | 2009-10-29 09:02:15 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-10-29 09:02:20 +0100 |
commit | 9de09ace8d518141a4375e1d216ab64db4377799 (patch) | |
tree | da8e7a77f4ea91eb3bb73fc6da72ecf8c99e1c16 /drivers/scsi/bfa/include/cs/bfa_checksum.h | |
parent | 1beee96bae0daf7f491356777c3080cc436950f5 (diff) | |
parent | 6d3f1e12f46a2f9a1bb7e7aa433df8dd31ce5647 (diff) | |
download | op-kernel-dev-9de09ace8d518141a4375e1d216ab64db4377799.zip op-kernel-dev-9de09ace8d518141a4375e1d216ab64db4377799.tar.gz |
Merge branch 'tracing/urgent' into tracing/core
Merge reason: Pick up fixes and move base from -rc1 to -rc5.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/scsi/bfa/include/cs/bfa_checksum.h')
-rw-r--r-- | drivers/scsi/bfa/include/cs/bfa_checksum.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/include/cs/bfa_checksum.h b/drivers/scsi/bfa/include/cs/bfa_checksum.h new file mode 100644 index 0000000..af8c1d5 --- /dev/null +++ b/drivers/scsi/bfa/include/cs/bfa_checksum.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2005-2009 Brocade Communications Systems, Inc. + * All rights reserved + * www.brocade.com + * + * Linux driver for Brocade Fibre Channel Host Bus Adapter. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License (GPL) Version 2 as + * published by the Free Software Foundation + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +/** + * bfa_checksum.h BFA checksum utilities + */ + +#ifndef __BFA_CHECKSUM_H__ +#define __BFA_CHECKSUM_H__ + +static inline u32 +bfa_checksum_u32(u32 *buf, int sz) +{ + int i, m = sz >> 2; + u32 sum = 0; + + for (i = 0; i < m; i++) + sum ^= buf[i]; + + return (sum); +} + +static inline u16 +bfa_checksum_u16(u16 *buf, int sz) +{ + int i, m = sz >> 1; + u16 sum = 0; + + for (i = 0; i < m; i++) + sum ^= buf[i]; + + return (sum); +} + +static inline u8 +bfa_checksum_u8(u8 *buf, int sz) +{ + int i; + u8 sum = 0; + + for (i = 0; i < sz; i++) + sum ^= buf[i]; + + return (sum); +} +#endif |