scsi: Change SCSI device boolean fields to single bit flags

commit 6371be7aeb986905bb60ec73d002fc02343393b4 upstream.

Commit 3cc2ffe5c16d ("scsi: sd: Differentiate system and runtime start/stop
management") changed the single bit manage_start_stop flag into 2 boolean
fields of the SCSI device structure. Commit 24eca2dce0f8 ("scsi: sd:
Introduce manage_shutdown device flag") introduced the manage_shutdown
boolean field for the same structure. Together, these 2 commits increase
the size of struct scsi_device by 8 bytes by using booleans instead of
defining the manage_xxx fields as single bit flags, similarly to other
flags of this structure.

Avoid this unnecessary structure size increase and be consistent with the
definition of other flags by reverting the definitions of the manage_xxx
fields as single bit flags.

Fixes: 3cc2ffe5c16d ("scsi: sd: Differentiate system and runtime start/stop management")
Fixes: 24eca2dce0f8 ("scsi: sd: Introduce manage_shutdown device flag")
Cc: <stable@vger.kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20231120225631.37938-2-dlemoal@kernel.org
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 3a957c4..87fe8a8 100644 (file)
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1056,8 +1056,8 @@ int ata_scsi_dev_config(struct scsi_device *sdev, struct ata_device *dev)
                 * and resume and shutdown only. For system level suspend/resume,
                 * devices power state is handled directly by libata EH.
                 */
-               sdev->manage_runtime_start_stop = true;
-               sdev->manage_shutdown = true;
+               sdev->manage_runtime_start_stop = 1;
+               sdev->manage_shutdown = 1;
        }
 
        /*

diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 7edf2c9..e779d86 100644 (file)
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -1519,9 +1519,9 @@ static int sbp2_scsi_slave_configure(struct scsi_device *sdev)
        sdev->use_10_for_rw = 1;
 
        if (sbp2_param_exclusive_login) {
-               sdev->manage_system_start_stop = true;
-               sdev->manage_runtime_start_stop = true;
-               sdev->manage_shutdown = true;
+               sdev->manage_system_start_stop = 1;
+               sdev->manage_runtime_start_stop = 1;
+               sdev->manage_shutdown = 1;
        }
 
        if (sdev->type == TYPE_ROM)

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 65e49fa..b919ed2 100644 (file)
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -167,19 +167,19 @@ struct scsi_device {
         * power state for system suspend/resume (suspend to RAM and
         * hibernation) operations.
         */
-       bool manage_system_start_stop;
+       unsigned manage_system_start_stop:1;
 
        /*
         * If true, let the high-level device driver (sd) manage the device
         * power state for runtime device suspand and resume operations.
         */
-       bool manage_runtime_start_stop;
+       unsigned manage_runtime_start_stop:1;
 
        /*
         * If true, let the high-level device driver (sd) manage the device
         * power state for system shutdown (power off) operations.
         */
-       bool manage_shutdown;
+       unsigned manage_shutdown:1;
 
        unsigned removable:1;
        unsigned changed:1;     /* Data invalid due to media change */