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authorbrking@us.ibm.com <brking@us.ibm.com>2006-01-23 15:03:22 -0600
committerJames Bottomley <jejb@mulgrave.(none)>2006-01-26 15:13:50 -0500
commitbb1d1073a10fdc8547e3eb821ee2488260094b39 (patch)
tree139a30834cea40e0d967506cfdaea603cf56a192 /Documentation/scsi
parent15084a4a63bc300c18b28a8a9afac870c552abce (diff)
[SCSI] Prevent scsi_execute_async from guessing cdb length
When the scsi_execute_async interface was added it ended up reducing the flexibility of userspace to send arbitrary scsi commands through sg using SG_IO. The SG_IO interface allows userspace to specify the CDB length. This is now ignored in scsi_execute_async and it is guessed using the COMMAND_SIZE macro, which is not always correct, particularly for vendor specific commands. This patch adds a cmd_len parameter to the scsi_execute_async interface to allow the caller to specify the length of the CDB. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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