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libata-scsi: fix SET FEATURES "filtering" for ata_msense_caching()

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Without this fix, the DRA bit of the caching mode page would not
be updated when the read look-ahead feature is toggled (e.g. with
`smartctl --set`), but will only be until, for example, the write
cache feature is touched.

Signed-off-by: Tom Yan <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
This commit is contained in:
Tom Yan 2016-07-12 21:37:02 +08:00 • committed by Tejun Heo
commit 0c12735e8a
2 changed files with 6 additions and 1 deletions
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4
drivers/ata/libata-core.c
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@ -5127,7 +5127,9 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
switch (qc->tf.command) {
case ATA_CMD_SET_FEATURES:
if (qc->tf.feature != SETFEATURES_WC_ON &&
qc->tf.feature != SETFEATURES_WC_OFF)
qc->tf.feature != SETFEATURES_WC_OFF &&
qc->tf.feature != SETFEATURES_RA_ON &&
qc->tf.feature != SETFEATURES_RA_OFF)
break;
/* fall through */
case ATA_CMD_INIT_DEV_PARAMS: /* CHS translation changed */