Skip to content

Commit

Permalink
ata: fix ata_id_has_ncq_autosense()
Browse files Browse the repository at this point in the history
[ Upstream commit a5fb6bf ]

ACS-5 section
7.13.6.36 Word 78: Serial ATA features supported
states that:

If word 76 is not 0000h or FFFFh, word 78 reports the features supported
by the device. If this word is not supported, the word shall be cleared
to zero.

(This text also exists in really old ACS standards, e.g. ACS-3.)

Additionally, move the macro to the other ATA_ID_FEATURE_SUPP macros
(which already have this check), thus making it more likely that the
next ATA_ID_FEATURE_SUPP macro that is added will include this check.

Fixes: 5b01e4b ("libata: Implement NCQ autosense")
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
  • Loading branch information
floatious authored and gregkh committed Oct 21, 2022
1 parent 2bb5832 commit 947255a
Showing 1 changed file with 4 additions and 2 deletions.
6 changes: 4 additions & 2 deletions include/linux/ata.h
Original file line number Diff line number Diff line change
Expand Up @@ -570,6 +570,10 @@ struct ata_bmdma_prd {
((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
((id)[ATA_ID_FEATURE_SUPP] & (1 << 8)))
#define ata_id_has_ncq_autosense(id) \
((((id)[ATA_ID_SATA_CAPABILITY] != 0x0000) && \
((id)[ATA_ID_SATA_CAPABILITY] != 0xffff)) && \
((id)[ATA_ID_FEATURE_SUPP] & (1 << 7)))
#define ata_id_iordy_disable(id) ((id)[ATA_ID_CAPABILITY] & (1 << 10))
#define ata_id_has_iordy(id) ((id)[ATA_ID_CAPABILITY] & (1 << 11))
#define ata_id_u32(id,n) \
Expand All @@ -582,8 +586,6 @@ struct ata_bmdma_prd {

#define ata_id_cdb_intr(id) (((id)[ATA_ID_CONFIG] & 0x60) == 0x20)
#define ata_id_has_da(id) ((id)[ATA_ID_SATA_CAPABILITY_2] & (1 << 4))
#define ata_id_has_ncq_autosense(id) \
((id)[ATA_ID_FEATURE_SUPP] & (1 << 7))

static inline bool ata_id_has_hipm(const u16 *id)
{
Expand Down

0 comments on commit 947255a

Please sign in to comment.