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scst: Backport the SCSI functions that are new in kernels v5.14 and v5.15

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@9501 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2021-09-03 04:56:13 +00:00
parent 309d11589a
commit 16f0eb9177
1 changed files with 35 additions and 0 deletions
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35
scst/include/backport.h
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@@ -2145,6 +2145,41 @@ static inline void *scsi_cmd_priv(struct scsi_cmnd *cmd)
}
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 14, 0)
/*
* See also commit f2b1e9c6f867 ("scsi: core: Introduce scsi_build_sense()";
* v5.14-rc1).
*/
static inline void scsi_build_sense(struct scsi_cmnd *scmd, int desc,
u8 key, u8 asc, u8 ascq)
{
scsi_build_sense_buffer(desc, scmd->sense_buffer, key, asc, ascq);
scmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
}
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 0)
/*
* See also 51f3a4788928 ("scsi: core: Introduce the scsi_cmd_to_rq()
* function").
*/
static inline struct request *scsi_cmd_to_rq(struct scsi_cmnd *scmd)
{
return blk_mq_rq_from_pdu(scmd);
}
/*
* See also commit 7ba46799d346 ("scsi: core: Add scsi_prot_ref_tag()
* helper").
*/
static inline u32 scsi_prot_ref_tag(struct scsi_cmnd *scmd)
{
struct request *rq = blk_mq_rq_from_pdu(scmd);
return t10_pi_ref_tag(rq);
}
#endif
/* <scsi/scsi_request.h> */
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 11, 0)