]> git.baikalelectronics.ru Git - kernel.git/commitdiff
ata: fix ata_id_has_ncq_autosense()
authorNiklas Cassel <niklas.cassel@wdc.com>
Fri, 16 Sep 2022 12:28:34 +0000 (14:28 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 26 Oct 2022 11:22:38 +0000 (13:22 +0200)
[ Upstream commit 8000306e61dcaa6341ca5155747ee196d365d6b4 ]

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: 05cb3aeddcf4 ("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>
include/linux/ata.h

index 8b884cd3a2320915e7c8285a9480335bc8337d7a..94f7872da983404a33a7b22ebec72e083e70cfee 100644 (file)
@@ -569,6 +569,10 @@ 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)       \
@@ -581,8 +585,6 @@ 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)
 {