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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-21 09:41:05 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-21 09:41:05 +0200 |
| commit | 211b100a5ceda9d1856a3f84334f9ca5f680b638 (patch) | |
| tree | 551ec1760c5037e4ef27c36a56667f500137c392 /drivers/ata/libata-core.c | |
| parent | Merge tag 'drm-fixes-2018-09-21' of git://anongit.freedesktop.org/drm/drm (diff) | |
| parent | Merge branch 'nvme-4.19' of git://git.infradead.org/nvme into for-linus (diff) | |
| download | linux-dev-211b100a5ceda9d1856a3f84334f9ca5f680b638.tar.xz linux-dev-211b100a5ceda9d1856a3f84334f9ca5f680b638.zip | |
Merge tag 'for-linus-20180920' of git://git.kernel.dk/linux-block
Jens writes:
"Storage fixes for 4.19-rc5
- Fix for leaking kernel pointer in floppy ioctl (Andy Whitcroft)
- NVMe pull request from Christoph, and a single ANA log page fix
(Hannes)
- Regression fix for libata qd32 support, where we trigger an illegal
active command transition. This fixes a CD-ROM detection issue that
was reported, but could also trigger premature completion of the
internal tag (me)"
* tag 'for-linus-20180920' of git://git.kernel.dk/linux-block:
floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl
libata: mask swap internal and hardware tag
nvme: count all ANA groups for ANA Log page
Diffstat (limited to 'drivers/ata/libata-core.c')
| -rw-r--r-- | drivers/ata/libata-core.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 599e01bcdef2..a9dd4ea7467d 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -5359,10 +5359,20 @@ void ata_qc_complete(struct ata_queued_cmd *qc) */ int ata_qc_complete_multiple(struct ata_port *ap, u64 qc_active) { + u64 done_mask, ap_qc_active = ap->qc_active; int nr_done = 0; - u64 done_mask; - done_mask = ap->qc_active ^ qc_active; + /* + * If the internal tag is set on ap->qc_active, then we care about + * bit0 on the passed in qc_active mask. Move that bit up to match + * the internal tag. + */ + if (ap_qc_active & (1ULL << ATA_TAG_INTERNAL)) { + qc_active |= (qc_active & 0x01) << ATA_TAG_INTERNAL; + qc_active ^= qc_active & 0x01; + } + + done_mask = ap_qc_active ^ qc_active; if (unlikely(done_mask & qc_active)) { ata_port_err(ap, "illegal qc_active transition (%08llx->%08llx)\n", |