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| author |   Bart Van Assche <bvanassche@acm.org> | 2020-01-22 19:56:34 -0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2020-02-28 21:02:10 -0500 |
| commit | 65ca846a53149a1a72cd8d02e7b2e73dd545b834 (patch) | |
| tree | d2e9861db4c83b97138fc43bb18c92ba9e1a14b0 /include/scsi/scsi_host.h | |
| parent | scsi: core: Remove cmd_list functionality (diff) | |
| download | wireguard-linux-65ca846a53149a1a72cd8d02e7b2e73dd545b834.tar.xz wireguard-linux-65ca846a53149a1a72cd8d02e7b2e73dd545b834.zip | |
scsi: core: Introduce {init,exit}_cmd_priv()
The current behavior of the SCSI core is to clear driver-private data
before preparing a request for submission to the SCSI LLD. Make it possible
for SCSI LLDs to disable clearing of driver-private data.
These hooks will be used by a later patch, namely "scsi: ufs: Let the SCSI
core allocate per-command UFS data".
Link: https://lore.kernel.org/r/20200123035637.21848-2-bvanassche@acm.org
Cc: Tomas Winkler <tomas.winkler@intel.com>
Cc: Stanley Chu <stanley.chu@mediatek.com>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Johannes Thumshirn <jth@kernel.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi/scsi_host.h')
| -rw-r--r-- | include/scsi/scsi_host.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index 74dc7d4f2a96..7464394e7d01 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -62,6 +62,9 @@ struct scsi_host_template { void __user *arg); #endif + int (*init_cmd_priv)(struct Scsi_Host *shost, struct scsi_cmnd *cmd); + int (*exit_cmd_priv)(struct Scsi_Host *shost, struct scsi_cmnd *cmd); + /* * The queuecommand function is used to queue up a scsi * command block to the LLDD. When the driver finished |