tty: acpi/spcr: QDF2400 E44 checks for wrong OEM revision

Bug #1674466 reported by Manoj Iyer on 2017-03-20
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Critical
Manoj Iyer

Bug Description

[Impact]
For Qualcomm Technologies QDF2400 SOCs that are affected by erratum E44,
the ACPI oem_revision field is actually set to 1, not 0. This patch is necessary for proper functioning of console used for D-I installs and boot.

[Test Case]
Without this patch you might not be able to use Serial Over Lan. To test on a QDF2400 platform, use ipmi to connect over SOL and either reboot the system or initiate a DI install. SOL will fail to display any output.

[Regression Potential]
This patch applies to TTY on QDF2400 platforms only. This patch does not impact any other vendor platforms. No potential for any regressions.

[Other Info]
The patch was tested by me on a QDF2400 platform and found to work as expected. This patch is now available in linux-next and is in line to be merged into 4.11 rc3.

CVE References

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1674466

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Seth Forshee (sforshee) on 2017-03-20
Changed in linux (Ubuntu):
status: Incomplete → Fix Committed
Launchpad Janitor (janitor) wrote :
Download full text (9.0 KiB)

This bug was fixed in the package linux - 4.10.0-15.17

---------------
linux (4.10.0-15.17) zesty; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1675868

  * In ZZ-BML (POWER9):ubuntu17.04 installation Fails (LP: #1675771)
    - powerpc/64s: fix handling of non-synchronous machine checks
    - powerpc/64s: allow machine check handler to set severity and initiator
    - powerpc/64s: POWER9 machine check handler

  * [Feature] R3 mwait support for Knights Mill (LP: #1637550)
    - x86/cpufeature: Enable RING3MWAIT for Knights Landing
    - x86/cpufeature: Enable RING3MWAIT for Knights Mill
    - x86/msr: Add MSR_MISC_FEATURE_ENABLES and RING3MWAIT bit
    - x86/elf: Add HWCAP2 to expose ring 3 MONITOR/MWAIT
    - x86/cpufeature: Add RING3MWAIT to CPU features

  * [Feature] GLK:New device IDs (LP: #1645951)
    - mfd: intel-lpss: Add Intel Gemini Lake PCI IDs
    - pwm: lpss: Add Intel Gemini Lake PCI ID
    - i2c: i801: Add support for Intel Gemini Lake
    - spi: pxa2xx: Add support for Intel Gemini Lake
    - [Config] CONFIG_PINCTRL_GEMINILAKE=m
    - pinctrl: intel: Add Intel Gemini Lake pin controller support

  * Zesty update to v4.10.5 stable release (LP: #1675032)
    - net/mlx5e: Register/unregister vport representors on interface attach/detach
    - net/mlx5e: Do not reduce LRO WQE size when not using build_skb
    - net/mlx5e: Fix broken CQE compression initialization
    - net/mlx5e: Update MPWQE stride size when modifying CQE compress state
    - net/mlx5e: Fix wrong CQE decompression
    - vxlan: correctly validate VXLAN ID against VXLAN_N_VID
    - vti6: return GRE_KEY for vti6
    - vxlan: don't allow overwrite of config src addr
    - ipv4: add missing initialization for flowi4_uid
    - ipv4: mask tos for input route
    - sctp: set sin_port for addr param when checking duplicate address
    - net sched actions: decrement module reference count after table flush.
    - l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv
    - vxlan: lock RCU on TX path
    - geneve: lock RCU on TX path
    - mlxsw: spectrum_router: Avoid potential packets loss
    - net: bridge: allow IPv6 when multicast flood is disabled
    - net: don't call strlen() on the user buffer in packet_bind_spkt()
    - net: net_enable_timestamp() can be called from irq contexts
    - ipv6: orphan skbs in reassembly unit
    - dccp: Unlock sock before calling sk_free()
    - amd-xgbe: Stop the PHY before releasing interrupts
    - amd-xgbe: Be sure to set MDIO modes on device (re)start
    - amd-xgbe: Don't overwrite SFP PHY mod_absent settings
    - bonding: use ETH_MAX_MTU as max mtu
    - strparser: destroy workqueue on module exit
    - tcp: fix various issues for sockets morphing to listen state
    - net: fix socket refcounting in skb_complete_wifi_ack()
    - net: fix socket refcounting in skb_complete_tx_timestamp()
    - net/sched: act_skbmod: remove unneeded rcu_read_unlock in tcf_skbmod_dump
    - dccp: fix use-after-free in dccp_feat_activate_values
    - team: use ETH_MAX_MTU as max mtu
    - vrf: Fix use-after-free in vrf_xmit
    - net/tunnel: set inner protocol in network gro hooks
    - uapi: fix linux/packet_diag.h use...

Read more...

Changed in linux (Ubuntu):
status: Fix Committed → Fix Released
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