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We shouldn't trust the firmware with the sizes (or contents)
of notifications, accessing too much data could cause page
faults if the data doesn't fit into the allocated space. This
applies more on older NICs where multiple notifications can
be in a single RX buffer.
Add a general framework for checking a minimum size of any
notification in the RX handlers and use it for most. Some RX
handlers were already checking and I've moved the checks,
some more complex checks I left and made them _NO_SIZE for
the RX handlers.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210117130510.3e155d5e5f90.I2121fa4ac7cd7eb98970d84b793796646afa3eed@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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dwc2_hsotg_process_req_status uses ep_from_windex() to retrieve
the endpoint for the index provided in the wIndex request param.
In a test-case with a rndis gadget running and sending a malformed
packet to it like:
dev.ctrl_transfer(
0x82, # bmRequestType
0x00, # bRequest
0x0000, # wValue
0x0001, # wIndex
0x00 # wLength
)
it is possible to cause a crash:
[ 217.533022] dwc2 ff300000.usb: dwc2_hsotg_process_req_status: USB_REQ_GET_STATUS
[ 217.559003] Unable to handle kernel read from unreadable memory at virtual address 0000000000000088
...
[ 218.313189] Call trace:
[ 218.330217] ep_from_windex+0x3c/0x54
[ 218.348565] usb_gadget_giveback_request+0x10/0x20
[ 218.368056] dwc2_hsotg_complete_request+0x144/0x184
This happens because ep_from_windex wants to compare the endpoint
direction even if index_to_ep() didn't return an endpoint due to
the direction not matching.
The fix is easy insofar that the actual direction check is already
happening when calling index_to_ep() which will return NULL if there
is no endpoint for the targeted direction, so the offending check
can go away completely.
Fixes: c6f5c050e2a7 ("usb: dwc2: gadget: add bi-directional endpoint support")
Cc: stable@vger.kernel.org
Reported-by: Gerhard Klostermeier <gerhard.klostermeier@syss.de>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Link: https://lore.kernel.org/r/20210127103919.58215-1-heiko@sntech.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If you pass a string that is not terminated with a carriage return to
dev_err(), it will eventually be printed with a carriage return, but
not right away, since the kernel will wait for a pr_cont().
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20210123142502.16980-4-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused-but-set devctl variable.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20210123142502.16980-3-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The 'request' variable is a pointer to the 'request' field of the
struct musb_request 'req' pointer. It only worked until now because
the 'request' field is the first one in the musb_request structure, but
as soon as that changes, the check will be invalid.
Fix it preventively by doing the NULL-check on the 'req' pointer
instead.
Suggested-by: Maarten ter Huurne <maarten@treewalker.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20210123142502.16980-2-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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musb_queue_resume_work() would call the provided callback if the runtime
PM status was 'active'. Otherwise, it would enqueue the request if the
hardware was still suspended (musb->is_runtime_suspended is true).
This causes a race with the runtime PM handlers, as it is possible to be
in the case where the runtime PM status is not yet 'active', but the
hardware has been awaken (PM resume function has been called).
When hitting the race, the resume work was not enqueued, which probably
triggered other bugs further down the stack. For instance, a telnet
connection on Ingenic SoCs would result in a 50/50 chance of a
segmentation fault somewhere in the musb code.
Rework the code so that either we call the callback directly if
(musb->is_runtime_suspended == 0), or enqueue the query otherwise.
Fixes: ea2f35c01d5e ("usb: musb: Fix sleeping function called from invalid context for hdrc glue")
Cc: stable@vger.kernel.org # v4.9+
Tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20210123142502.16980-1-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3
core") introduced clock support and a new function named
dwc3_core_init_for_resume() which enables the clock before calling
dwc3_core_init() during resume as clocks get disabled during suspend.
Unfortunately in this commit the DWC3_GCTL_PRTCAP_OTG case was forgotten
and therefore during resume, a platform could call dwc3_core_init()
without re-enabling the clocks first, preventing to resume properly.
So update the resume path to call dwc3_core_init_for_resume() as it
should.
Fixes: fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3 core")
Cc: stable@vger.kernel.org
Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Link: https://lore.kernel.org/r/20210125161934.527820-1-gary.bisson@boundarydevices.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This replaces the platform_device_add_properties() call with
the safer device_create_managed_software_node() that does
exactly the same, but can also guarantee that the lifetime
of the node that is created for the device is tied to the
lifetime of device itself.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20210204141711.53775-7-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This replaces the platform_device_add_properties() call with
the safer device_create_managed_software_node() that does
exactly the same, but can also guarantee that the lifetime
of the node that is created for the device is tied to the
lifetime of device itself.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20210204141711.53775-6-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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At the moment the function device_del() is calling
device_remove_properties() unconditionally. That will result into the
reference count of the software node attached to the device being
decremented, and in most cases it will hit 0 at that point. So in
practice device_del() will unregister the software node attached to
the device, even if that was not the intention of the caller. Right
now software nodes can not be reused or shared because of that.
So device_del() can not unregister the software nodes unconditionally
like that. Unfortunately some of the users of device_add_properties()
are now relying on this behaviour. Because of that, and also in
general, we do need a function that can offer similar behaviour where
the lifetime of the software node is bound to the lifetime of the
device. But it just has to be a separate function so the behaviour is
optional. We can not remove the device_remove_properties() call from
device_del() before we have that new function, and before we have
replaced device_add_properties() calls with it in all the places that
require that behaviour.
This adds function device_create_managed_software_node() that can be
used for exactly that purpose. Software nodes created with it are
declared "managed", and separate handling for those nodes is added to
the software node code. The reference count of the "managed" nodes is
decremented when the device they are attached to is removed. This will
not affect the other nodes that are not declared "managed".
The function device_create_managed_software_node() has also one
additional feature that device_add_properties() does not have. It
allows the software nodes created with it to be part of a node
hierarchy by taking also an optional parent node as parameter.
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20210204141711.53775-2-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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'tag-ib-usb-typec-chrome-platform-cros-ec-typec-clear-pd-discovery-events-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux into usb-next
Benson writes:
clear-pd-discovery-events
This pair of patches fixes an issue where cros_ec_typec creates stale
cable nodes on detach because of uncleared pd discovery status events.
* tag 'tag-ib-usb-typec-chrome-platform-cros-ec-typec-clear-pd-discovery-events-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: cros_ec_typec: Clear Type C disc events
platform/chrome: cros_ec: Import Type C control command
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
1GbE Intel Wired LAN Driver Updates 2021-02-03
This series contains updates to igc, igb, e1000e, and e1000 drivers.
Sasha adds counting of good transmit packets and reporting of NVM version
and gPHY version in ethtool firmware version. Replaces the use of strlcpy
to the preferred strscpy. Fixes a typo that caused the wrong register to be
output. He also removes an unused function pointer, some unneeded defines,
and a non-applicable comment. All changes for igc.
Gal Hammer fixes a typo which caused the RDBAL register values to be
shown instead of TDBAL for igb.
Nick Lowe enables RSS support for i211 devices for igb.
Tom Rix fixes checkpatch warning by removing h from printk format
specifier for igb.
Kaixu Xia removes setting of a variable that is overwritten before next
use for e1000e.
Sudip Mukherjee removes an unneeded assignment for e1000.
* '1GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
e1000: drop unneeded assignment in e1000_set_itr()
e1000e: remove the redundant value assignment in e1000_update_nvm_checksum_spt
igb: remove h from printk format specifier
igb: Enable RSS for Intel I211 Ethernet Controller
igb: fix TDBAL register show incorrect value
igc: Fix TDBAL register show incorrect value
igc: Remove unused FUNC_1 mask
igc: Remove unused local receiver mask
igc: Prefer strscpy over strlcpy
igc: Expose the gPHY firmware version
igc: Expose the NVM version
igc: Add Host Good Packets Transmitted Count
igc: Remove MULR mask define
igc: Remove igc_set_fw_version comment
igc: Clean up nvm_operations structure
====================
Link: https://lore.kernel.org/r/20210204004259.3662059-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fix the typo.
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Fixes: 0ba35fe91ce34f ("hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The recv_buf buffers are allocated in netvsc_device_add(). Later in
netvsc_init_buf() the response to NVSP_MSG1_TYPE_SEND_RECV_BUF allows
the host to set up a recv_section_size that could be bigger than the
(default) value used for that allocation. The host-controlled value
could be used by a malicious host to bypass the check on the packet's
length in netvsc_receive() and hence to overflow the recv_buf buffer.
Move the allocation of the recv_buf buffers into netvsc_init_but().
Reported-by: Juan Vazquez <juvazq@microsoft.com>
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Fixes: 0ba35fe91ce34f ("hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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For runtime resuming, the RTL8153B may be resumed from the state
of power cut, when enabling the feature of UPS. Then, the PHY
would be reset, so it is necessary to be initailized again.
Besides, the USB_U1U2_TIMER also has to be set again, so I move
it from r8153b_init() to r8153b_hw_phy_cfg().
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Replace r8153_patch_request() with rtl_phy_patch_request().
Replace r8153_pre_ram_code() with rtl_pre_ram_code().
Replace r8153_post_ram_code() with rtl_post_ram_code().
Add rtl_patch_key_set().
The new functions have an additional parameter. It is used to wait
the patch request command finished. When the PHY is resumed from
the state of power cut, the PHY is at a safe mode and the
OCP_PHY_PATCH_STAT wouldn't be updated. For this situation, it is
safe to set patch request command without waiting OCP_PHY_PATCH_STAT.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Michael tried to enable Advanced Error Reporting through the ENETC's
Root Complex Event Collector, and the system started spitting out single
bit correctable ECC errors coming from the ENETC interfaces:
pcieport 0000:00:1f.0: AER: Multiple Corrected error received: 0000:00:00.0
fsl_enetc 0000:00:00.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
fsl_enetc 0000:00:00.0: device [1957:e100] error status/mask=00004000/00000000
fsl_enetc 0000:00:00.0: [14] CorrIntErr
fsl_enetc 0000:00:00.1: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
fsl_enetc 0000:00:00.1: device [1957:e100] error status/mask=00004000/00000000
fsl_enetc 0000:00:00.1: [14] CorrIntErr
Further investigating the port correctable memory error detect register
(PCMEDR) shows that these AER errors have an associated SOURCE_ID of 6
(RFS/RSS):
$ devmem 0x1f8010e10 32
0xC0000006
$ devmem 0x1f8050e10 32
0xC0000006
Discussion with the hardware design engineers reveals that on LS1028A,
the hardware does not do initialization of that RFS/RSS memory, and that
software should clear/initialize the entire table before starting to
operate. That comes as a bit of a surprise, since the driver does not do
initialization of the RFS memory. Also, the initialization of the
Receive Side Scaling is done only partially.
Even though the entire ENETC IP has a single shared flow steering
memory, the flow steering service should returns matches only for TCAM
entries that are within the range of the Station Interface that is doing
the search. Therefore, it should be sufficient for a Station Interface
to initialize all of its own entries in order to avoid any ECC errors,
and only the Station Interfaces in use should need initialization.
There are Physical Station Interfaces associated with PCIe PFs and
Virtual Station Interfaces associated with PCIe VFs. We let the PF
driver initialize the entire port's memory, which includes the RFS
entries which are going to be used by the VF.
Reported-by: Michael Walle <michael@walle.cc>
Fixes: d4fd0404c1c9 ("enetc: Introduce basic PF and VF ENETC ethernet drivers")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Michael Walle <michael@walle.cc>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Link: https://lore.kernel.org/r/20210204134511.2640309-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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On read, master should send 31 MSB of the register (only even values
are ever used), followed by a 1 to indicate read. Then, reading two
bytes, the device will output the register's value.
On write, master sends 31 MSB of the register, followed by a 0 to
indicate write, followed by two bytes containing the register value.
Flexibilis' documentation (version 1.3) specifies the opposite
polarity (#read/write), but the scope indicates that it is, in fact,
read/#write.
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: George McCollister <george.mccollister@gmail.com>
Link: https://lore.kernel.org/r/20210202191645.439-1-tobias@waldekranz.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The flow steering struct ethtool_flow_ext::data field is __be32, so when
the CFP code needs to check the VLAN egress tagging attribute in bit 0,
it does this in CPU native endianness. So logically, the endianness
conversion is set up the other way around, although in practice the same
result is produced.
Gets rid of build warning:
warning: cast from restricted __be32
warning: incorrect type in argument 1 (different base types)
expected unsigned int [usertype] val
got restricted __be32
warning: cast from restricted __be32
warning: cast from restricted __be32
warning: cast from restricted __be32
warning: cast from restricted __be32
warning: restricted __be32 degrades to integer
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210203193918.2236994-1-olteanv@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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s/initialsation/initialisation/
s/specifiing/specifying/
Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20210204031648.27300-1-unixbhaskar@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 44144185951a0f ("hv_netvsc: Add validation for untrusted Hyper-V
values") added validation to rndis_filter_receive_data() (and
rndis_filter_receive()) which introduced NVSP_STAT_FAIL-scenarios where
the count is not updated/reset. Fix this omission, and prevent similar
scenarios from occurring in the future.
Reported-by: Juan Vazquez <juvazq@microsoft.com>
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Fixes: 44144185951a0f ("hv_netvsc: Add validation for untrusted Hyper-V values")
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Link: https://lore.kernel.org/r/20210203113602.558916-1-parri.andrea@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In gsi_channel_setup(), we check to see if the configuration data
contains any information about channels that are not supported by
the hardware. If one is found, we abort the setup process, but
the error code (ret) is not set in this case. Fix this bug.
Fixes: 650d1603825d8 ("soc: qcom: ipa: the generic software interface")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20210204010655.15619-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The null check of filp->f_path.dentry->d_iname is redundant because
it is an array of DNAME_INLINE_LEN chars and cannot be a null. Fix
this by removing the null check.
Addresses-Coverity: ("Array compared against 0")
Fixes: 04987ca1b9b6 ("net: hns3: add debugfs support for tm nodes, priority and qset info")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Link: https://lore.kernel.org/r/20210203131040.21656-1-colin.king@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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change 'piority' to 'priority'
change 'succesfult' to 'successful'
Signed-off-by: wengjianfeng <wengjianfeng@yulong.com>
Link: https://lore.kernel.org/r/20210203093842.11180-1-samirweng1979@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When enabling encap for a ipv6 socket without udp_encap_needed_key
increased, UDP GRO won't work for v4 mapped v6 address packets as
sk will be NULL in udp4_gro_receive().
This patch is to enable it by increasing udp_encap_needed_key for
v6 sockets in udp_tunnel_encap_enable(), and correspondingly
decrease udp_encap_needed_key in udpv6_destroy_sock().
v1->v2:
- add udp_encap_disable() and export it.
v2->v3:
- add the change for rxrpc and bareudp into one patch, as Alex
suggested.
v3->v4:
- move rxrpc part to another patch.
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Traditionally loopback devices come up with initial state as DOWN for
any new network-namespace. This would mean that anyone needing this
device would have to bring this UP by issuing something like 'ip link
set lo up'. This can be avoided if the initial state is set as UP.
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: Jian Yang <jianyang@google.com>
Link: https://lore.kernel.org/r/20210201233445.2044327-1-jianyang.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now we can remove a bunch of identical functions from the drivers and
make them use common dev_page_is_reusable(). All {,un}likely() checks
are omitted since it's already present in this helper.
Also update some comments near the call sites.
Suggested-by: David Rientjes <rientjes@google.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It's not meaningful to pass on LAPB error codes to HDLC code or other
parts of the system, because they will not understand the error codes.
Instead, use system-wide recognizable error codes.
Fixes: f362e5fe0f1f ("wan/hdlc_x25: make lapb params configurable")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Acked-by: Martin Schiller <ms@dev.tdt.de>
Link: https://lore.kernel.org/r/20210203071541.86138-1-xie.he.0141@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Link: https://lore.kernel.org/r/20210202182511.8109-1-rajur@chelsio.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v5.11-rc7:
- Skip vswing programming for TBT
- Power up combo PHY lanes for HDMI
- Fix double YUV range correction on HDR planes
- Fix the MST PBN divider calculation
- Fix LTTPR vswing/pre-emp setting in non-transparent mode
- Move the breadcrumb to the signaler if completed upon cancel
- Close race between enable_breadcrumbs and cancel_breadcrumbs
- Drop lru bumping on display unpinning
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87bld0f36b.fsf@intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas:
"Revert ASPM suspend/resume fix that regressed NVMe devices (Bjorn
Helgaas)"
* tag 'pci-v5.11-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
Revert "PCI/ASPM: Save/restore L1SS Capability for suspend/resume"
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.11-2021-02-03:
amdgpu:
- Fix retry in gem create
- Vangogh fixes
- Fix for display from shared buffers
- Various display fixes
amdkfd:
- Fix regression in buffer free
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210204041300.4425-1-alexander.deucher@amd.com
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A missing comma caused a build failure:
drivers/soc/atmel/soc.c:196:24: error: too few arguments provided to function-like macro invocation
Fixes: af3a10513cd6 ("drivers: soc: atmel: add per soc id and version match masks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Fix the following coccicheck warnings:
./drivers/net/xen-netfront.c:1816:52-54: WARNING !A || A && B is
equivalent to !A || B.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/1612261069-13315-1-git-send-email-jiapeng.chong@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since commit 23025393dbeb3b8b3 ("xen/netback: use lateeoi irq binding")
xenvif_rx_ring_slots_available() is no longer called only from the rx
queue kernel thread, so it needs to access the rx queue with the
associated queue held.
Reported-by: Igor Druzhinin <igor.druzhinin@citrix.com>
Fixes: 23025393dbeb3b8b3 ("xen/netback: use lateeoi irq binding")
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Wei Liu <wl@xen.org>
Link: https://lore.kernel.org/r/20210202070938.7863-1-jgross@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Replace the ACPI_DEBUG_PRINT() instances in thermal.c with
acpi_handle_debug() calls and modify the ACPI_THERMAL_TRIPS_EXCEPTION()
macro in there to use acpi_handle_info() internally, which among other
things causes the excessive log level of the messages printed by it to
be increased.
Drop the _COMPONENT and ACPI_MODULE_NAME() definitions that are not
used any more from thermal.c, drop the no longer needed
ACPI_THERMAL_COMPONENT definition from the headers and update the
documentation accordingly.
While at it, add a pr_fmt() definition to thermal.c, drop the PREFIX
definition from there and replace some pr_warn() calls with pr_info()
or acpi_handle_info() to reduce the excessive log level and (in the
latter case) facilitate easier identification of the message source.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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Replace the ACPI_DEBUG_PRINT() instances in acpi_video.c with
acpi_handle_debug() calls and the ACPI_EXCEPTION()/ACPI_ERROR()/
ACPI_WARNING() instances in there with acpi_handle_info() calls,
which among other things causes the excessive log levels of those
messages to be increased.
Drop the _COMPONENT and ACPI_MODULE_NAME() definitions that are not
used any more from acpi_video.c, drop the no longer needed
ACPI_VIDEO_COMPONENT definition from the headers and update the
documentation accordingly.
While at it, add a pr_fmt() definition to acpi_video.c, replace the
direct printk() invocations in there with acpi_handle_info() or
pr_info() (and reduce the excessive log level where applicable) and
drop the PREFIX sybmbol definition which is not necessary any more
from acpi_video.c.
Also make unrelated janitorial changes to fix up white space and
use ACPI_FAILURE() instead of negating ACPI_SUCCESS().
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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Replace the ACPI_DEBUG_PRINT() instance in button.c with an
acpi_handle_debug() call, drop the _COMPONENT and ACPI_MODULE_NAME()
definitions that are not used any more, drop the no longer needed
ACPI_BUTTON_COMPONENT definition from the headers and update the
documentation accordingly.
While at it, replace the direct printk() invocations with pr_info()
(that changes the excessive log level for some of them too) and drop
the unneeded PREFIX sybmbol definition from battery.c.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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Replace the ACPI_DEBUG_PRINT() and ACPI_EXCEPTION() instances
in battery.c with acpi_handle_debug() and acpi_handle_info() calls,
respectively, which among other things causes the excessive log
level of the messages previously printed via ACPI_EXCEPTION() to
be increased.
Drop the _COMPONENT and ACPI_MODULE_NAME() definitions that are not
used any more, drop the no longer needed ACPI_BATTERY_COMPONENT
definition from the headers and update the documentation accordingly.
While at it, update the pr_fmt() definition and drop the unneeded
PREFIX sybmbol definition from battery.c. Also adapt the existing
pr_info() calls to the new pr_fmt() definition.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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Replace the ACPI_DEBUG_PRINT() and ACPI_EXCEPTION() instances
in ac.c with acpi_handle_debug() and acpi_handle_info() calls,
respectively, which among other things causes the excessive log
level of the messages previously printed via ACPI_EXCEPTION() to
be increased.
Drop the _COMPONENT and ACPI_MODULE_NAME() definitions that are not
used any more, drop the no longer needed ACPI_AC_COMPONENT definition
from the headers and update the documentation accordingly.
While at it, replace the direct printk() invocation with pr_info(),
add a pr_fmt() definition to ac.c and drop the unneeded PREFIX
symbol definition from there.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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Clear USB Type C discovery events from the Chrome EC once they've been
successfully handled.
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Reported-by: Benson Leung <bleung@chromium.org>
Tested-by: Benson Leung <bleung@chromium.org>
Link: https://lore.kernel.org/r/20210203021539.745239-2-pmalani@chromium.org
Signed-off-by: Benson Leung <bleung@chromium.org>
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This flag is set by one of the drivers but it isn't used in the code
otherwise. Remove the unused flag and update the driver.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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During cpufreq driver's registration, if the ->init() callback for all
the CPUs fail then there is not much point in keeping the driver around
as it will only account for more of unnecessary noise, for example
cpufreq core will try to suspend/resume the driver which never got
registered properly.
The removal of such a driver is avoided if the driver carries the
CPUFREQ_STICKY flag. This was added way back [1] in 2004 and perhaps no
one should ever need it now. A lot of drivers do set this flag, probably
because they just copied it from other drivers.
This was added earlier for some platforms [2] because their cpufreq
drivers were getting registered before the CPUs were registered with
subsys framework. And hence they used to fail.
The same isn't true anymore though. The current code flow in the kernel
is:
start_kernel()
-> kernel_init()
-> kernel_init_freeable()
-> do_basic_setup()
-> driver_init()
-> cpu_dev_init()
-> subsys_system_register() //For CPUs
-> do_initcalls()
-> cpufreq_register_driver()
Clearly, the CPUs will always get registered with subsys framework
before any cpufreq driver can get probed. Remove the flag and update the
relevant drivers.
Link: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/include/linux/cpufreq.h?id=7cc9f0d9a1ab04cedc60d64fd8dcf7df224a3b4d # [1]
Link: https://git.kernel.org/pub/scm/linux/kernel/git/tglx/history.git/commit/arch/arm/mach-sa1100/cpu-sa1100.c?id=f59d3bbe35f6268d729f51be82af8325d62f20f5 # [2]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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After dropping all of the code using ACPI_BUS_COMPONENT drop it
too and modify the example in the documentation using it.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replace all of the ACPI_DEBUG_PRINT() instances in utils.c with
pr_debug() and acpi_handle_debug(), drop the _COMPONENT and
ACPI_MODULE_NAME() definitions that are not used any more and
replace direct printk() invocations with pr_debug() calls (the log
level in there is way excessive).
Also add a special pr_fmt() definition, but this only affects the
pr_debug() messages mentioned above.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replace all of the ACPI_DEBUG_PRINT() and ACPI_EXCEPTION() instances
in scan.c with acpi_handle_debug() and acpi_handle_info(), respectively,
and drop the _COMPONENT and ACPI_MODULE_NAME() definitions that
are not used any more.
While at it, drop the redundant "Memory allocation error" message
from acpi_add_single_object() and clean up the list of local variables
in that function.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reported-by: kernel test robot <lkp@intel.com>
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Replace all of the ACPI_DEBUG_PRINT() and ACPI_EXCEPTION() instances
in bus.c with pr_debug() and pr_info(), respectively, drop the
_COMPONENT and ACPI_MODULE_NAME() definitions that are not used any
more and replace direct printk() invocations with the matching
pr_*() calls (with a couple of exceptions where the log level is
decreased).
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replace the remaining ACPI_DEBUG_PRINT() instances in device_pm.c
with dev_dbg() invocations, drop the _COMPONENT and ACPI_MODULE_NAME()
definitions that are not used any more, and drop the no longer needed
ACPI_POWER_COMPONENT definition from the headers and documentation.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Replace all of the ACPI_DEBUG_PRINT() instances in power.c with
acpi_handle_debug() or pr_debug(), depending on the context,
drop the _COMPONENT and ACPI_MODULE_NAME() definitions that
are not used any more, and replace the direct invocations of
printk() in there with acpi_handle_info() or pr_info(), depending
on the context.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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