This patch series is fixing a few ATA PASS-THROUGH issues: 1. Not reporting "ATA Status Return sense data descriptor" / "Fixed format sense data" when ATA_QCFLAG_SENSE_VALID is set. 2. Generating "fake" sk/asc/ascq based on ATA status/error registers when ATA_QCFLAG_SENSE_VALID is set and CK_COND=1. 3. Fixed format sense data was using incorrect field offsets for ATA PASS-THROUGH commands. 4. Using qc->result_tf in ATA sense data generation functions without checking if qc->result_tf contains a valid data. Changes since v1: Thanks Damien and Niklas for the reviews! - Squashed two v1 patches 2/4 and 3/4 into one patch with a different implementation. - Added 'Cc: stable@xxxxxxxxxxxxxxx' tags to patches that are fixing bugs. - Reordered patches with the 'Cc: stable@xxxxxxxxxxxxxxx' tag to be applied first in order to simplify backports to stable releases. - Restored the buffer memset in atapi_eh_request_sense(). - Updated declaration order in v1 patch 4/4. - Added a patch to cleanup unused ATA device id in ata_to_sense_error(). - Updated fill_result_tf() to set ATA_QCFLAG_RTF_FILLED after populating the result taskfile. Removed now redundant flag sets/checks from ahci. - Updated ATA sense data generation functions to return early if result_tf is not filled. Added WARN_ON_ONCE checks to generate a warning when ATA_QCFLAG_RTF_FILLED is not set and libata needs to generate sense data. Changes since v2: - Moved v2 2/6 patch (fixed ATA PT offsets) to be the first one in v3. - Removed unused variable 'sb' from ata_gen_passthru_sense(). - Removed WARN_ON_ONCE checks and added ata_dev_dbg() logs instead. - Removed the Fixes tag from v2 4/6 patch because the patch is doing a cleanup and is not fixing any bugs. Changes since v3: - Changed "RTF" to "result TF" in the log messages to make it more clear. Removed capitalization and punctuation to be consistent with existing logs. - Marked the stable tag of the v3 2/6 patch with the 4.19+ LTS version. - Added a patch to honour the D_SENSE bit for CK_COND=1 and no error commands. - Fixed a bug in the v3 5/6 patch which caused the qc->result_tf.flags field assignment to be skipped if ahci_qc_ncq_fill_rtf() was executed. - Added a patch proposed by Niklas to improve the readability of the complex ATA PASS-THROUGH handling in ata_scsi_qc_complete(). Changes since v4: - Squashed v4 2/8 and 8/8 patches into one. Both patches modified the same function. Combining these related patches makes it easier to backport the changes to stable releases. - Reworded the commit message in v4 3/8 to make it more clear. Igor Pylypiv (7): ata: libata-scsi: Fix offsets for the fixed format sense data ata: libata-scsi: Do not overwrite valid sense data when CK_COND=1 ata: libata-scsi: Honor the D_SENSE bit for CK_COND=1 and no error ata: libata-scsi: Remove redundant sense_buffer memsets ata: libata-scsi: Do not pass ATA device id to ata_to_sense_error() ata: libata-core: Set ATA_QCFLAG_RTF_FILLED in fill_result_tf() ata: libata-scsi: Check ATA_QCFLAG_RTF_FILLED before using result_tf drivers/ata/libahci.c | 12 +-- drivers/ata/libata-core.c | 8 ++ drivers/ata/libata-scsi.c | 209 +++++++++++++++++++++----------------- 3 files changed, 128 insertions(+), 101 deletions(-) -- 2.45.2.803.g4e1b14247a-goog
