Linux Kernel 5.4.72 Release

This post summarizes Linux Kernel new features, bugfixes and changes in Linux 5.4.72 Release. Linux 5.4.72 Release contains 23 changes, patches or new features.

In total, there are 126,508 lines of Linux source code changed/added in Linux 5.4.72 release compared to Linux 5.4 release. To view the source code of Linux 5.4.72 kernel release online, please check the linux-stable tree for Linux 5.4.72. If you would like to download the release package for Linux 5.4.72, please click: Linux 5.4.72. To download the patchset for Linux 5.4.72 release, please click: Linux 5.4.72 patch.

All changes in this Linux release are as follows.

Linux 5.4.72

This change "Linux 5.4.72" (commit 52f6ded) in Linux kernel is authored by Greg Kroah-Hartman <gregkh [at] linuxfoundation.org> on Sat Oct 17 10:11:24 2020 +0200.

The change "Linux 5.4.72" introduces changes as follows.

Linux 5.4.72

Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Link: https://lore.kernel.org/r/20201016090437.308349327@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 52f6ded (patch).

crypto: qat – check cipher length for aead AES-CBC-HMAC-SHA

This change "crypto: qat – check cipher length for aead AES-CBC-HMAC-SHA" (commit 865b015) in Linux kernel is authored by Dominik Przychodni <dominik.przychodni [at] intel.com> on Mon Aug 31 11:59:59 2020 +0100.

The change "crypto: qat – check cipher length for aead AES-CBC-HMAC-SHA" introduces changes as follows.

crypto: qat - check cipher length for aead AES-CBC-HMAC-SHA

commit 45cb6653b0c355fc1445a8069ba78a4ce8720511 upstream.

Return -EINVAL for authenc(hmac(sha1),cbc(aes)),
authenc(hmac(sha256),cbc(aes)) and authenc(hmac(sha512),cbc(aes))
if the cipher length is not multiple of the AES block.
This is to prevent an undefined device behaviour.

Fixes: d370cec32194 ("crypto: qat - Intel(R) QAT crypto interface")
Cc: <stable@vger.kernel.org>
Signed-off-by: Dominik Przychodni <dominik.przychodni@intel.com>
[giovanni.cabiddu@intel.com: reworded commit message]
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 865b015 (patch).

crypto: bcm – Verify GCM/CCM key length in setkey

This change "crypto: bcm – Verify GCM/CCM key length in setkey" (commit aa11679) in Linux kernel is authored by Herbert Xu <herbert [at] gondor.apana.org.au> on Fri Oct 2 17:55:22 2020 +1000.

The change "crypto: bcm – Verify GCM/CCM key length in setkey" introduces changes as follows.

crypto: bcm - Verify GCM/CCM key length in setkey

commit 10a2f0b311094ffd45463a529a410a51ca025f27 upstream.

The setkey function for GCM/CCM algorithms didn't verify the key
length before copying the key and subtracting the salt length.

This patch delays the copying of the key til after the verification
has been done.  It also adds checks on the key length to ensure
that it's at least as long as the salt.

Fixes: 9d12ba86f818 ("crypto: brcm - Add Broadcom SPU driver")
Cc: <stable@vger.kernel.org>
Reported-by: kiyin(尹亮) <kiyin@tencent.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is aa11679 (patch).

xen/events: don’t use chip_data for legacy IRQs

This change "xen/events: don’t use chip_data for legacy IRQs" (commit 564312e) in Linux kernel is authored by Juergen Gross <jgross [at] suse.com> on Wed Sep 30 11:16:14 2020 +0200.

The change "xen/events: don’t use chip_data for legacy IRQs" introduces changes as follows.

xen/events: don't use chip_data for legacy IRQs

commit 0891fb39ba67bd7ae023ea0d367297ffff010781 upstream.

Since commit c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.")
Xen is using the chip_data pointer for storing IRQ specific data. When
running as a HVM domain this can result in problems for legacy IRQs, as
those might use chip_data for their own purposes.

Use a local array for this purpose in case of legacy IRQs, avoiding the
double use.

Cc: stable@vger.kernel.org
Fixes: c330fb1ddc0a ("XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.")
Signed-off-by: Juergen Gross <jgross@suse.com>
Tested-by: Stefan Bader <stefan.bader@canonical.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20200930091614.13660-1-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 564312e (patch).

reiserfs: Fix oops during mount

This change "reiserfs: Fix oops during mount" (commit 041445d) in Linux kernel is authored by Jan Kara <jack [at] suse.cz> on Wed Sep 30 17:08:20 2020 +0200.

The change "reiserfs: Fix oops during mount" introduces changes as follows.

reiserfs: Fix oops during mount

commit c2bb80b8bdd04dfe32364b78b61b6a47f717af52 upstream.

With suitably crafted reiserfs image and mount command reiserfs will
crash when trying to verify that XATTR_ROOT directory can be looked up
in / as that recurses back to xattr code like:

 xattr_lookup+0x24/0x280 fs/reiserfs/xattr.c:395
 reiserfs_xattr_get+0x89/0x540 fs/reiserfs/xattr.c:677
 reiserfs_get_acl+0x63/0x690 fs/reiserfs/xattr_acl.c:209
 get_acl+0x152/0x2e0 fs/posix_acl.c:141
 check_acl fs/namei.c:277 [inline]
 acl_permission_check fs/namei.c:309 [inline]
 generic_permission+0x2ba/0x550 fs/namei.c:353
 do_inode_permission fs/namei.c:398 [inline]
 inode_permission+0x234/0x4a0 fs/namei.c:463
 lookup_one_len+0xa6/0x200 fs/namei.c:2557
 reiserfs_lookup_privroot+0x85/0x1e0 fs/reiserfs/xattr.c:972
 reiserfs_fill_super+0x2b51/0x3240 fs/reiserfs/super.c:2176
 mount_bdev+0x24f/0x360 fs/super.c:1417

Fix the problem by bailing from reiserfs_xattr_get() when xattrs are not
yet initialized.

CC: stable@vger.kernel.org
Reported-by: syzbot+9b33c9b118d77ff59b6f@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 041445d (patch).

reiserfs: Initialize inode keys properly

This change "reiserfs: Initialize inode keys properly" (commit 0466168) in Linux kernel is authored by Jan Kara <jack [at] suse.cz> on Mon Sep 21 15:08:50 2020 +0200.

The change "reiserfs: Initialize inode keys properly" introduces changes as follows.

reiserfs: Initialize inode keys properly

commit 4443390e08d34d5771ab444f601cf71b3c9634a4 upstream.

reiserfs_read_locked_inode() didn't initialize key length properly. Use
_make_cpu_key() macro for key initialization so that all key member are
properly initialized.

CC: stable@vger.kernel.org
Reported-by: syzbot+d94d02749498bb7bab4b@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 0466168 (patch).

USB: serial: ftdi_sio: add support for FreeCalypso JTAG+UART adapters

This change "USB: serial: ftdi_sio: add support for FreeCalypso JTAG+UART adapters" (commit 22ab9ca) in Linux kernel is authored by Mychaela N. Falconia <falcon [at] freecalypso.org> on Wed Sep 16 01:56:29 2020 +0000.

The change "USB: serial: ftdi_sio: add support for FreeCalypso JTAG+UART adapters" introduces changes as follows.

USB: serial: ftdi_sio: add support for FreeCalypso JTAG+UART adapters

commit 6cf87e5edd9944e1d3b6efd966ea401effc304ee upstream.

There exist many FT2232-based JTAG+UART adapter designs in which
FT2232 Channel A is used for JTAG and Channel B is used for UART.
The best way to handle them in Linux is to have the ftdi_sio driver
create a ttyUSB device only for Channel B and not for Channel A:
a ttyUSB device for Channel A would be bogus and will disappear as
soon as the user runs OpenOCD or other applications that access
Channel A for JTAG from userspace, causing undesirable noise for
users.  The ftdi_sio driver already has a dedicated quirk for such
JTAG+UART FT2232 adapters, and it requires assigning custom USB IDs
to such adapters and adding these IDs to the driver with the
ftdi_jtag_quirk applied.

Boutique hardware manufacturer Falconia Partners LLC has created a
couple of JTAG+UART adapter designs (one buffered, one unbuffered)
as part of FreeCalypso project, and this hardware is specifically made
to be used with Linux hosts, with the intent that Channel A will be
accessed only from userspace via appropriate applications, and that
Channel B will be supported by the ftdi_sio kernel driver, presenting
a standard ttyUSB device to userspace.  Toward this end the hardware
manufacturer will be programming FT2232 EEPROMs with custom USB IDs,
specifically with the intent that these IDs will be recognized by
the ftdi_sio driver with the ftdi_jtag_quirk applied.

Signed-off-by: Mychaela N. Falconia <falcon@freecalypso.org>
[johan: insert in PID order and drop unused define]
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 22ab9ca (patch).

USB: serial: pl2303: add device-id for HP GC device

This change "USB: serial: pl2303: add device-id for HP GC device" (commit bfb1438) in Linux kernel is authored by Scott Chen <scott [at] labau.com.tw> on Thu Sep 24 14:27:45 2020 +0800.

The change "USB: serial: pl2303: add device-id for HP GC device" introduces changes as follows.

USB: serial: pl2303: add device-id for HP GC device

commit 031f9664f8f9356cee662335bc56c93d16e75665 upstream.

This is adds a device id for HP LD381 which is a pl2303GC-base device.

Signed-off-by: Scott Chen <scott@labau.com.tw>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is bfb1438 (patch).

staging: comedi: check validity of wMaxPacketSize of usb endpoints found

This change "staging: comedi: check validity of wMaxPacketSize of usb endpoints found" (commit aecf3a1) in Linux kernel is authored by Anant Thazhemadam <anant.thazhemadam [at] gmail.com> on Sat Oct 10 13:59:32 2020 +0530.

The change "staging: comedi: check validity of wMaxPacketSize of usb endpoints found" introduces changes as follows.

staging: comedi: check validity of wMaxPacketSize of usb endpoints found

commit e1f13c879a7c21bd207dc6242455e8e3a1e88b40 upstream.

While finding usb endpoints in vmk80xx_find_usb_endpoints(), check if
wMaxPacketSize = 0 for the endpoints found.

Some devices have isochronous endpoints that have wMaxPacketSize = 0
(as required by the USB-2 spec).
However, since this doesn't apply here, wMaxPacketSize = 0 can be
considered to be invalid.

Reported-by: syzbot+009f546aa1370056b1c2@syzkaller.appspotmail.com
Tested-by: syzbot+009f546aa1370056b1c2@syzkaller.appspotmail.com
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201010082933.5417-1-anant.thazhemadam@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is aecf3a1 (patch).

USB: serial: option: Add Telit FT980-KS composition

This change "USB: serial: option: Add Telit FT980-KS composition" (commit 8aff872) in Linux kernel is authored by Leonid Bloch <lb.workbox [at] gmail.com> on Sun Oct 4 18:58:13 2020 +0300.

The change "USB: serial: option: Add Telit FT980-KS composition" introduces changes as follows.

USB: serial: option: Add Telit FT980-KS composition

commit 924a9213358fb92fa3c3225d6d042aa058167405 upstream.

This commit adds the following Telit FT980-KS composition:

0x1054: rndis, diag, adb, nmea, modem, modem, aux

AT commands can be sent to /dev/ttyUSB2.

Signed-off-by: Leonid Bloch <lb.workbox@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/ce86bc05-f4e2-b199-0cdc-792715e3f275@asocscloud.com
Link: https://lore.kernel.org/r/20201004155813.2342-1-lb.workbox@gmail.com
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 8aff872 (patch).

USB: serial: option: add Cellient MPL200 card

This change "USB: serial: option: add Cellient MPL200 card" (commit 3c3eb73) in Linux kernel is authored by Wilken Gottwalt <wilken.gottwalt [at] mailbox.org> on Sat Oct 3 11:40:29 2020 +0200.

The change "USB: serial: option: add Cellient MPL200 card" introduces changes as follows.

USB: serial: option: add Cellient MPL200 card

commit 3e765cab8abe7f84cb80d4a7a973fc97d5742647 upstream.

Add usb ids of the Cellient MPL200 card.

Signed-off-by: Wilken Gottwalt <wilken.gottwalt@mailbox.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/3db5418fe9e516f4b290736c5a199c9796025e3c.1601715478.git.wilken.gottwalt@mailbox.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 3c3eb73 (patch).

media: usbtv: Fix refcounting mixup

This change "media: usbtv: Fix refcounting mixup" (commit b970578) in Linux kernel is authored by Oliver Neukum <oneukum [at] suse.com> on Thu Sep 24 11:14:10 2020 +0200.

The change "media: usbtv: Fix refcounting mixup" introduces changes as follows.

media: usbtv: Fix refcounting mixup

commit bf65f8aabdb37bc1a785884374e919477fe13e10 upstream.

The premature free in the error path is blocked by V4L
refcounting, not USB refcounting. Thanks to
Ben Hutchings for review.

[v2] corrected attributions

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Fixes: 50e704453553 ("media: usbtv: prevent double free in error case")
CC: stable@vger.kernel.org
Reported-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is b970578 (patch).

Bluetooth: Disconnect if E0 is used for Level 4

This change "Bluetooth: Disconnect if E0 is used for Level 4" (commit 6ad2e64) in Linux kernel is authored by Luiz Augusto von Dentz <luiz.von.dentz [at] intel.com> on Wed May 20 14:20:14 2020 -0700.

The change "Bluetooth: Disconnect if E0 is used for Level 4" introduces changes as follows.

Bluetooth: Disconnect if E0 is used for Level 4

commit 8746f135bb01872ff412d408ea1aa9ebd328c1f5 upstream.

E0 is not allowed with Level 4:

BLUETOOTH CORE SPECIFICATION Version 5.2 | Vol 3, Part C page 1319:

  '128-bit equivalent strength for link and encryption keys
   required using FIPS approved algorithms (E0 not allowed,
   SAFER+ not allowed, and P-192 not allowed; encryption key
   not shortened'

SC enabled:

> HCI Event: Read Remote Extended Features (0x23) plen 13
        Status: Success (0x00)
        Handle: 256
        Page: 1/2
        Features: 0x0b 0x00 0x00 0x00 0x00 0x00 0x00 0x00
          Secure Simple Pairing (Host Support)
          LE Supported (Host)
          Secure Connections (Host Support)
> HCI Event: Encryption Change (0x08) plen 4
        Status: Success (0x00)
        Handle: 256
        Encryption: Enabled with AES-CCM (0x02)

SC disabled:

> HCI Event: Read Remote Extended Features (0x23) plen 13
        Status: Success (0x00)
        Handle: 256
        Page: 1/2
        Features: 0x03 0x00 0x00 0x00 0x00 0x00 0x00 0x00
          Secure Simple Pairing (Host Support)
          LE Supported (Host)
> HCI Event: Encryption Change (0x08) plen 4
        Status: Success (0x00)
        Handle: 256
        Encryption: Enabled with E0 (0x01)
[May 8 20:23] Bluetooth: hci0: Invalid security: expect AES but E0 was used
< HCI Command: Disconnect (0x01|0x0006) plen 3
        Handle: 256
        Reason: Authentication Failure (0x05)

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Hans-Christian Noren Egtvedt <hegtvedt@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 6ad2e64 (patch).

Bluetooth: Fix update of connection state in hci_encrypt_cfm

This change "Bluetooth: Fix update of connection state in hci_encrypt_cfm" (commit 21d2051) in Linux kernel is authored by Patrick Steinhardt <ps [at] pks.im> on Wed Jul 15 19:43:33 2020 +0200.

The change "Bluetooth: Fix update of connection state in hci_encrypt_cfm" introduces changes as follows.

Bluetooth: Fix update of connection state in `hci_encrypt_cfm`

commit 339ddaa626995bc6218972ca241471f3717cc5f4 upstream.

Starting with the upgrade to v5.8-rc3, I've noticed I wasn't able to
connect to my Bluetooth headset properly anymore. While connecting to
the device would eventually succeed, bluetoothd seemed to be confused
about the current connection state where the state was flapping hence
and forth. Bisecting this issue led to commit 3ca44c16b0dc (Bluetooth:
Consolidate encryption handling in hci_encrypt_cfm, 2020-05-19), which
refactored `hci_encrypt_cfm` to also handle updating the connection
state.

The commit in question changed the code to call `hci_connect_cfm` inside
`hci_encrypt_cfm` and to change the connection state. But with the
conversion, we now only update the connection state if a status was set
already. In fact, the reverse should be true: the status should be
updated if no status is yet set. So let's fix the isuse by reversing the
condition.

Fixes: 3ca44c16b0dc ("Bluetooth: Consolidate encryption handling in hci_encrypt_cfm")
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by:  Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 21d2051 (patch).

Bluetooth: Consolidate encryption handling in hci_encrypt_cfm

This change "Bluetooth: Consolidate encryption handling in hci_encrypt_cfm" (commit ed6c361) in Linux kernel is authored by Luiz Augusto von Dentz <luiz.von.dentz [at] intel.com> on Tue May 19 13:25:19 2020 -0700.

The change "Bluetooth: Consolidate encryption handling in hci_encrypt_cfm" introduces changes as follows.

Bluetooth: Consolidate encryption handling in hci_encrypt_cfm

commit 3ca44c16b0dcc764b641ee4ac226909f5c421aa3 upstream.

This makes hci_encrypt_cfm calls hci_connect_cfm in case the connection
state is BT_CONFIG so callers don't have to check the state.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Hans-Christian Noren Egtvedt <hegtvedt@cisco.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is ed6c361 (patch).

Bluetooth: MGMT: Fix not checking if BT_HS is enabled

This change "Bluetooth: MGMT: Fix not checking if BT_HS is enabled" (commit 155bf3f) in Linux kernel is authored by Luiz Augusto von Dentz <luiz.von.dentz [at] intel.com> on Thu Aug 6 11:17:14 2020 -0700.

The change "Bluetooth: MGMT: Fix not checking if BT_HS is enabled" introduces changes as follows.

Bluetooth: MGMT: Fix not checking if BT_HS is enabled

commit b560a208cda0297fef6ff85bbfd58a8f0a52a543 upstream.

This checks if BT_HS is enabled relecting it on MGMT_SETTING_HS instead
of always reporting it as supported.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 155bf3f (patch).

Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel

This change "Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel" (commit 66a1435) in Linux kernel is authored by Luiz Augusto von Dentz <luiz.von.dentz [at] intel.com> on Thu Aug 6 11:17:12 2020 -0700.

The change "Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel" introduces changes as follows.

Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel

commit f19425641cb2572a33cb074d5e30283720bd4d22 upstream.

Only sockets will have the chan->data set to an actual sk, channels
like A2MP would have its own data which would likely cause a crash when
calling sk_filter, in order to fix this a new callback has been
introduced so channels can implement their own filtering if necessary.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 66a1435 (patch).

Bluetooth: A2MP: Fix not initializing all members

This change "Bluetooth: A2MP: Fix not initializing all members" (commit 0d9e9b6) in Linux kernel is authored by Luiz Augusto von Dentz <luiz.von.dentz [at] intel.com> on Thu Aug 6 11:17:11 2020 -0700.

The change "Bluetooth: A2MP: Fix not initializing all members" introduces changes as follows.

Bluetooth: A2MP: Fix not initializing all members

commit eddb7732119d53400f48a02536a84c509692faa8 upstream.

This fixes various places where a stack variable is used uninitialized.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 0d9e9b6 (patch).

ACPI: Always build evged in

This change "ACPI: Always build evged in" (commit 54f8bad) in Linux kernel is authored by Arjan van de Ven <arjan [at] linux.intel.com> on Wed Oct 9 15:04:33 2019 +0200.

The change "ACPI: Always build evged in" introduces changes as follows.

ACPI: Always build evged in

commit ac36d37e943635fc072e9d4f47e40a48fbcdb3f0 upstream.

Although the Generic Event Device is a Hardware-reduced
platfom device in principle, it should not be restricted to
ACPI_REDUCED_HARDWARE_ONLY.

Kernels supporting both fixed and hardware-reduced ACPI platforms
should be able to probe the GED when dynamically detecting that a
platform is hardware-reduced. For that, the driver must be
unconditionally built in.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Vishnu Rangayyan <vishnu.rangayyan@apple.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is 54f8bad (patch).

ARM: 8939/1: kbuild: use correct nm executable

This change "ARM: 8939/1: kbuild: use correct nm executable" (commit 30ddaa4) in Linux kernel is authored by Dmitry Golovin <dima [at] golovin.in> on Tue Nov 19 16:39:42 2019 +0100.

The change "ARM: 8939/1: kbuild: use correct nm executable" introduces changes as follows.

ARM: 8939/1: kbuild: use correct nm executable

[ Upstream commit 29c623d64f0dcd6aa10e0eabd16233e77114090b ]

Since $(NM) variable can be easily overridden for the whole build, it's
better to use it instead of $(CROSS_COMPILE)nm. The use of $(CROSS_COMPILE)
prefixed variables where their calculated equivalents can be used is
incorrect. This fixes issues with builds where $(NM) is set to llvm-nm.

Link: https://github.com/ClangBuiltLinux/linux/issues/766

Signed-off-by: Dmitry Golovin <dima@golovin.in>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Matthias Maennich <maennich@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

The commit for this change in Linux stable tree is 30ddaa4 (patch).

btrfs: take overcommit into account in inc_block_group_ro

This change "btrfs: take overcommit into account in inc_block_group_ro" (commit 1bf467f) in Linux kernel is authored by Josef Bacik <josef [at] toxicpanda.com> on Wed Oct 14 10:44:47 2020 +0800.

The change "btrfs: take overcommit into account in inc_block_group_ro" introduces changes as follows.

btrfs: take overcommit into account in inc_block_group_ro

commit a30a3d2067536cbcce26c055e70cc3a6ae4fd45c upstream

inc_block_group_ro does a calculation to see if we have enough room left
over if we mark this block group as read only in order to see if it's ok
to mark the block group as read only.

The problem is this calculation _only_ works for data, where our used is
always less than our total.  For metadata we will overcommit, so this
will almost always fail for metadata.

Fix this by exporting btrfs_can_overcommit, and then see if we have
enough space to remove the remaining free space in the block group we
are trying to mark read only.  If we do then we can mark this block
group as read only.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

The commit for this change in Linux stable tree is 1bf467f (patch).

btrfs: don’t pass system_chunk into can_overcommit

This change "btrfs: don’t pass system_chunk into can_overcommit" (commit 39c5eb1) in Linux kernel is authored by Josef Bacik <josef [at] toxicpanda.com> on Wed Oct 14 10:44:46 2020 +0800.

The change "btrfs: don’t pass system_chunk into can_overcommit" introduces changes as follows.

btrfs: don't pass system_chunk into can_overcommit

commit 9f246926b4d5db4c5e8c78e4897757de26c95be6 upstream

We have the space_info, we can just check its flags to see if it's the
system chunk space info.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

The commit for this change in Linux stable tree is 39c5eb1 (patch).

perf cs-etm: Move definition of ‘traceid_list’ global variable from header file

This change "perf cs-etm: Move definition of ‘traceid_list’ global variable from header file" (commit bc79abf) in Linux kernel is authored by Leo Yan <leo.yan [at] linaro.org> on Tue May 5 21:36:42 2020 +0800.

The change "perf cs-etm: Move definition of ‘traceid_list’ global variable from header file" introduces changes as follows.

perf cs-etm: Move definition of 'traceid_list' global variable from header file

commit 168200b6d6ea0cb5765943ec5da5b8149701f36a upstream.

The variable 'traceid_list' is defined in the header file cs-etm.h,
if multiple C files include cs-etm.h the compiler might complaint for
multiple definition of 'traceid_list'.

To fix multiple definition error, move the definition of 'traceid_list'
into cs-etm.c.

Fixes: cd8bfd8c973e ("perf tools: Add processing of coresight metadata")
Reported-by: Thomas Backlund <tmb@mageia.org>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Thomas Backlund <tmb@mageia.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Tor Jeremiassen <tor@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20200505133642.4756-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Barker <pbarker@konsulko.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The commit for this change in Linux stable tree is bc79abf (patch).

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