[SCSI] esas2r: Directly call kernel functions for atomic bit operations

Previously the code embedded the kernel's test_bit/clear_bit
functions in wrappers that accepted u32 parameters. The
wrapper cast these parameters to longs before passing them
to the kernel's bit functions. This did not work properly
on platforms with 64-bit longs.

Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

[SCSI] esas2r: ATTO Technology ExpressSAS 6G SAS/SATA RAID Adapter Driver

This is a new driver for ATTO Technology's ExpressSAS series of hardware RAID
adapters. It supports the following adapters:

- ExpressSAS R60F
- ExpressSAS R680
- ExpressSAS R608
- ExpressSAS R644

Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>